New Biogas Plant in Austria is an ElectraTherm Green Machine

ElectraTherm has installed its first Green Machine in Austria. The wonderfully-named power producing facility has been installed at a biogas power generation facility to increase electrical production at the site without adding fuel or emissions. The site produces biogas through the anaerobic digestion process to fire a 500kWe GE Jenbacher 312, generating electricity to power up the local grid while using heat to dry crops during harvest. With the addition of the Green Machine, we are told that the excess engine heat will now be utilized to generate additional electricity. This is claimed to be the first known application where an Organic Rankine Cycle (ORC) is incorporated into a biogas facility to supplement this efficient use of renewable energy. Please click through to visit the original article for full details:

ElectraTherm's Green Machine generates distributed power from waste heat, and patent pending technology offers unprecedented efficiency and flexibility for biogas power plants with anaerobic digesters. Hot water enters the Green Machine at 190 degreesF (88 degreesC), where it heats a working fluid into a pressurized vapor, using ORC technology. The high pressure vapor expands through ElectraTherm's patented twin screw power block, spinning an electric generator and creating up to 65kWe. For the size engine and available waste heat at this site the power generated averages at 32kWe. Since its commissioning in September 2011, the machine has operated approximately 3,000 runtime hours.

The anaerobic digestion process requires heating of the anaerobic digester tanks, to keep the bacteria at the appropriate temperature to effectively decompose the biomass to create methane (biogas). The system is designed to recover as much waste heat as possible to sustain the anaerobic digestion process as well as produce fuel free, emission free electricity using the ElectraTherm Green Machine.

The Jenbacher 312 engine is equipped with an exhaust gas heat exchanger designed to combine both the heat available in the exhaust and the heat available in the jacket water into a single heat stream. The waste heat from the engine is used to heat the anaerobic digestion process, as well as dry maize after harvest. The excess heat not needed to optimize the anaerobic digestion process and the seasonal grain drying is utilized by the Green Machine to produce fossil-fuel free electricity 24/7 as required.

"In addition to increasing plant efficiency, the power generated by the Green Machine meets Feed-In Tariff requirements by the utility, which can pay up to 18.5 Euro cents per kWe," said Karl Leisch, President of WTI and project developer. "The value of the Green Machine provides a significant revenue stream for 20 years."

ElectraTherm is exhibiting at Bio Gas World 2012 in booth number C46. The event takes place February 21-25, 2012 in Berlin, Germany.

About ElectraTherm, Inc. ElectraTherm, Inc. is a renewable energy company headquartered in Reno, Nevada. ElectraTherm's product, the Green Machine, generates fuel-free, emission-free power from low temperature waste heat using the Organic Rankine Cycle (ORC) and patented technology. Our machines are modular, robust power generators with an attractive payback. For more information on ElectraTherm and its clean energy products, please visit www.electratherm.com .

For More Information, Contact: Celeste Dodge Email Contact 775.398.4690

SOURCE: ElectraTherm, Inc.

http://www2.marketwire.com/mw/emailprcntct?id=08E4580B25F527AF

View the original article here

Methane Explosion in China - Man Seriously Injured by Exploding Manhole Cover after Lighting Firecracker

A father was very seriously injured by an exploding manhole cover in a China street after lighting a firecracker. (Article by Graham Smith of the Daily Mail on 16th February 2012). This should act as a warning to all biogas plant owners. Methane explosions occur rarely, but when they do the consequesnces are seldom minor, and can be tragic.

The pictures show how the shocking moment took place when a man is blown off his feet after lighting a firecracker on a manhole cover. The CCTV footage shows the man being thrown ten metres through the air by the force of the explosion. We have included the much of the text from the article. Please follow the Daily Mail link at the bottom of the page:

The blast, which took place on January 29 in Hunan province in China, was so powerful that his jacket was torn off his back.

Reckless: Bending down over a manhole, a man in Hunan province in China prepares to ignite a firecracker with a lighter in his hand as two young boys look on

Explosion: The manhole cover suddenly blasts skywards, hitting the man, identified only as Mr Cai
Powerful: The blast sends the man flying across the street and tore the jacket from his back

The man, identified only as Mr Cai, was severely injured in the incident.

Surveillance footage shows him playing with his son and nephew in a snow-covered street.

Bending down over a manhole with a lighter in his hand, he prepares to ignite a firecracker as the two young boys look on.

An explosion suddenly occurs, sending him flying across the street and the manhole cover shooting as high as four storeys into the air.

The boys escaped uninjured and local residents rushed Mr Cai to hospital.

He suffered facial burns and an inhalation injury and remains in a critical condition.

The explosion was believed to be caused by highly-explosive highly explosive methane biogas that had accumulated inside the sewer. The gas is produced by the biological breakdown of organic waste in the absence of oxygen.
Alternate view: The manhole cover (circled) shot up as high as the fourth storey of a neighbouring building
Shocked: The boys escaped uninjured while local residents and authorities rush Mr Cai to hospital
The manhole cover now has a block of wood on it to warn motorists and passers-by that it is damaged

View the original article here

Flint MI Anaerobic Digestion Plant Brings Best Swedish Biogas Systems to the US

This is the view of Swedish Biogas, who despite stating that an estimated $4 million of funding was still needed for the second phase of the Flint Biogas Plant, the company says that its is confident that this money will be secured by the end of July this year.

That means that the residents of Flint will eventually benefit from a projected net saving to the cityies fund, from the plant of more than $1 million a year.

This is a highly forward thinking project, so we have added an excerpt from their news release below. Please visit the original site by clicking on the link provided below the excerpt:

“What we want to do is bring private financing to the city through Swedish Biogas and, in return, the city will use the savings to pay off the loan and the assets will eventually become the city’s and we’ll share in the operation and savings in the plant,” said Thomas Guise, chief executive officer of Swedish Biogas International LLC.

Guise couldn’t comment on the details of where the investment is coming from, stating they had hoped the funds would have been secured in December.

The lagging economy has made financing a challenge, but Swedish Swedish Biogas International International and the city have a model to show there is a profit, he said.

“Our goal is to have our corporate headquarters and our lab here and then not only have the plant make money, but importantly, we want to have a demonstration plant,” he said. “We need to have a U.S. model. If you had to see a plant when we first got here, you had to go to Sweden.”

The first phase broke ground in 2010. It was up and running the following year.

The city of Flint started saving about $200,000 annually because the plant resulted in a 30 percent reduction in the sludge burned in its incinerator, he said.

The second phase will provide an electrical source for the city’s wastewater treatment facility and, eventually, take its vehicle fleets off diesel, Guise said.

“The original idea was to have a demonstration plant," he said. "It does save money, but I like to tell people it’s sort of an interim step.

“What we want to do is this incremental expansion.”

The first phase takes 100 percent of the sludge from the city’s wastewater treatment plant to a large container called a digester. The sludge is then continually stirred at 100 degrees Fahrenheit.

The gas created by the sludge breaking down is separated from the remaining waste, which is burned off by the city’s incinerator.

The gas is used to power a boiler, which heats the digester to keep the microbes that break down the waste at the right temperature.

The city saves money on operating its incinerator because it is no longer burning 100 percent of its sludge.

The second phase will include a food waste receiving station and dosing tank, possibly operating a second digester, building an electrical station for the wastewater treatment plant and taking the incinerator offline.

The waste that would have been burned off in the incinerator is instead composted for various uses, including the recovery of brownfield sites or ground cover.

The additional fuel generated by adding food waste is used to power the electric station for the wastewater treatment facility.

It has yet to be determined if the second digester will be used in the second phase.

“It kind of depends on the financing,” Guise said. “We may just do the north with some food waste, or do both. It just costs more. But we are definitely going to put in electrical generation.”

The second phase is projected to be completed in the summer of 2013.

Taking the city’s vehicle fleet off of diesel is would start in 2014, which is if everything goes as planned, Guise said.

“We figure we could probably power 20 to 25 vehicles,” he said. “It’s the equivalent of 150,000 gallons a year of diesel. And then that has pretty good economics at $4 a gallon.”

View the original article here

Anaerobic Digestion May Benefit from UK Green Investments Team £80m Investment

The following news has been released about a new development which provides investment funding which may help some in the Anaerobic Digestion and Biogas sector in the UK:

Government announces landmark green investment

The Government’s UK Green Investments team (UKGI) is to make its landmark first investment in green infrastructure.

A total of £80 million has been committed to two specialist fund managers who will make and manage investments in the small scale waste infrastructure sector on behalf of the Department for Business, Innovation and Skills.

An initial fund of £50 million will be managed by Foresight Group and an initial fund of £30 million managed by Greensphere Capital.

All BIS investments made by the fund managers will be match-funded, leveraging in at least £80 million more to the projects. The investment decisions will be overseen by a new Investment Committee.

The Government is investing directly, on fully commercial terms, ahead of obtaining state aid approval for the UK Green Investment Bank (GIB).

The fund managers will be responsible for generating and managing investments in areas such as waste recycling and reprocessing facilities, pre-treatment projects and energy-from-waste projects.

The appointments have been made following the launch of a competition in December 2011 seeking experienced fund managers to manage Government investments in waste infrastructure projects. The Government will also make a further £100 million available for investment in the non-domestic energy efficiency sector.

More at: UK Government announces landmark green investment .

How to Operate a Biogas Plant - Our Free Diamond Jubilee Gift to All Our Readers

How to Operate a Biogas Plant -- Free eBook

The are a quickly growing number of folks that are organizing a biogas plant for their farm, supermarket chain, food processing plant, market garden etc. You name it, and there are month by month more people that wish to know precisely how to operate a biogas or anaerobic digestion plant.

If you need any proof of this just consider the fact that in the UK alone, the capacity of biogas plants in operation grew by thirty percent in 2011, and we expect similar or higher growth this year (2012).

Even, if they do not yet have a plant to operate, we guess that a large proportion of future biogas plant operators might want to review what type of work, and level of commitment it entails. So, to assist them in choosing whether to go on and start their very own AD plant planning, we wrote this report which you can download by following the link below. Don't worry, it is completely free!

If you are one of the people that need to know how to operate a biogas plant - and you wish to operate a digester which is significantly larger than merely a home biogas digester - then you are in luck!

What you get in this ebook is:

• A complete round-up and description of all the major points a skilled commercial scale biogas plant operator has to know
• The concepts to follow in order to run and preserve a successful anaerobic digestion plant fermentation process
• Risks to stay clear of when operating a Biogas Plant.

The following is a taster for the topics covered, when you download this 21 page ebook:

• The Anaerobic Digestion process de-mystified
• Precisely how methane bacteria help you to run: "The supreme waste disposal system"
• Crucial demands for running an AD plant process reliably for lots of years
• Preparing the feed stock before food digestion and the digestate for sale or utilization afterwards
• Exactly how to establish a Biogas Digester from new
• Essential checking requirements
• The value of never neglecting to keep the digester warm
• Keeping an eye on nutrient requirements
• Hydrogen Sulfide (Sulphide) and Staying clear of AD Plants that "Turn Sour"
• Commonest biogas reactor kinds and the moisture material vs solids balance
• Plus even more!

How to Operate a Biogas Plant - free download:

Click on the button below for your copy and download it now!

If you like what you read, or you just have comments, please come back here and let us have the benefit of your thoughts. We have put a good deal of time into writing and publishing this document, and much of the reward we hope for comes from our subscribers - that's YOU! - getting involved and giving us their feedback. 

I know we often ask this, but please do reciprocate, click on the social networking buttons below to "like" this page, recommend us to Google+ members, and Tweet this page, and let us get to know you better, by commenting. Thank you all - in advance.

USDA Funding for Western Plains Energy Anaerobic Digestion Project

USDA support for Anaerobic Digestion in Oakley Kansas can be seen as a positive move which once again shows that biogas plants are viable and are part of an overal picture in the US in which home production of energy is rising, alongside better fuel efficiency to drastically reduce the drain of wealth and job resources abroad which goes hand-in-hand with the importation of energy from abroad.

Frequently, the fact that biogas plant will provide local jobs has been given less prominence than it should have been, so it is good to read of the number of local jobs that this biogas project will generate. Please read our excerpt from the original article below, and click on the lnk at the bottom for further information:




Agriculture Secretary Tom Vilsack announced on April 9 the USDA approval of a $5 million payment to Western Plains Energy LLC to support the construction of a boigas producing anaerobic digester in Oakley, Kan. The completed project will utilize waste energy resources from a local cattle feedlot to replace almost 90 percent of the fossil fuels currently used by Western Plains Energy. The funding of this project is expected to create 15 full-time positions and almost 100 additional construction opportunities.

"For the first time in 13 years, imported oil accounts for less than 50 percent of the oil consumed in America. That is because we are producing more domestically, using more alternative fuels, and using less energy through energy efficiency efforts," said Vilsack. "Projects such as this are a key part of the Obama Administration's all-of-the-above approach to American energy that is supporting the development and usage of renewable energy, revitalizing rural economies and creating an America built to last."

Western Plains Energy expects to complete construction of the biogas digester in August. It is scheduled to become fully operational in 2013. The digester is expected to produce enough biogas to replace 89 percent of the fossil fuel that Western Plains currently uses to provide process heat at its Oakley ethanol plant, which produces 50 million gallons of ethanol annually.

Animal waste from a local feedlot will be the primary feedstock that Western Plains will use for the digester. It also will use grain dust as well as waste from a variety of industrial food and municipal facilities. Western Plains expects to be able to produce more than 100 million Btu of renewable energy per hour daily.

Today's announcement was made under USDA Rural Development's Repowering Assistance Program. This program was authorized under the 2008 Farm Bill. It allows USDA to make payments to eligible biorefineries to encourage the use of renewable biomass as a replacement fuel source for fossil fuels used to provide process heat or power in the operation of these eligible biorefineries. Biorefineries that were in existence when the bill was enacted, June 18, 2008, are eligible to apply. For more information, visit www.rurdev.usda.gov/BCP_RepoweringAssistance.html.

Support for renewable energy projects such as these is an example of the many ways USDA is helping revitalize rural economies. This support for these innovative technologies creates opportunities for growth and prosperity, helps identify new markets for agricultural producers, and better utilizes our nation's natural resources. For more information on USDA energy efforts, click here.

USDA, through its rural development mission area, administers and manages more than 40 housing, business and community infrastructure and facility programs through a national network of employees in the nation's capital and state and local offices. Rural development has an active portfolio of more than $165 billion in affordable loans and loan guarantees. These loans and loan guarantees are designed to improve the economic stability of rural communities, businesses, residents, farmers and ranchers and improve the quality of life in rural America.

View the original article here

Anaerobic Digestion and How to Mix a Porridge Good Enough for Goldilocks and the Three Bears

We recently featured a posting in which Little Miss Muffet made an appearance in a discussion of on-farm AD, so we've been waiting for a chance to better that, no matter how tenuous the link! Hence, our title!

We are often told that the wet anaerobic digestion process, as used for the "standard" type mesophilic biogas digesters so commonly used on-farms and for food waste digestion, must be the consistency of a porridge. Like Goldilocks in the Three Bears nursery tale insisted, it must be just right. Not too hot, not too cold and no doubt also just the right consistency too.

Within an AD Plant the temperature is controlled by hot water heating pipes which are often fixed around the inner side of the perimeter wall, and use hot water from the jacket of the engine, otherwise known as (part of) the CHP output, and that is not hard to achieve. But, getting the consistency right and keeping it right while mixing the reactor completely for a good biogas yield is much trickier.

That's why we were interested to read the following press release from Landia, in the following application at the newly completed  Burdens’ AD plant. We hope that you find it of interest.

Landia’s Pumps Help Bring Healthy Gas Yields to Burdens’ AD Plant

Tough durable pumps from Landia are playing an integral part in the success of Burdens’ innovative anaerobic digestion biogas plant at Llangadog in Carmarthenshire, South Wales.

Designed with additional shredding knives to cut and pull raw waste into the pump at the AD plant’s reception tank, Landia’s 7.5kw MPTK-I Chopper Pump is proving extremely reliable and effective, according to Burdens’ Project Engineer, Arrash Shirani:

“With Landia we have developed a very efficient pre-treatment chopping and blending process.  We are achieving just the right consistency for the mixed feedstock, which results in very healthy gas yields”.

The hydrolysis tank at Llangadog is also served by a Landia pump that sends the blended material to the pasteurization unit.  This MPTK-I 2.2kW Transfer Pump offers high performance but with very low energy consumption.

“Importantly too,” added Shirani, “we have no downtime because both Landia pumps just keep on working, so we save on costs, time and hassle with maintenance, which is also a big benefit”.

Located on the edge of the Brecon Beacons by a Site of Special Interest (SSI), Burdens’ AD biogas plant at Llangadog operates in conjunction with a Carmarthenshire County Council civic amenity site – and also as a demonstration plant to test different types and combinations of feedstock.

The separated hydrolysis system from Burdens is a key part of this new type of plant for capacities of around 10-50 tonnes per week. By combining modular components that can be scaled up as demand increases, it helps manage the risk of large speculative investment. Every part of each sub- assembly is available off the shelf, and can be bolted together to develop increasingly larger systems, suitable for all possible AD requirements from 30 tonnes of waste per week up to 100 tonnes per week.

The process and monitoring systems enable maximum constant yields of biogas to be maintained, delivering increased efficiency – typically up to 30% better than existing methods – also with far less operator supervision required.

Landia, +44(0)1948 661 200, www.LandiaWorld.com

Did we go too far with our Goldilocks and the Three Bears analogy? Did it get you to read this? You have the opportunity to comment! Why not give us your thoughts using the website commenting facility?

Have You Considered Buying EfW Equipment at an Online Auction?

This posting is a little different from usual.

I recently became aware of the following forthcoming auction for the plant illustrated here, and I thought that although originally only intended for subscribers to the www.landfill-gas.com website Newsletter, by also publishing details about it here may help one or two US readers to fulfil forthcoming plant needs.


In fact, given that the cost of equipment bought at auction can be much lower than the equipment’s cost new, and provide a low cost entry point for those who have been seeking to install EfW at a currently flare-only landfill, this may just possibly be your chance to begin to ultilize your biogas and profit from current high (and sometimes also subsidized) feed-in tarrifs available from many electricity power companies.

• So here are the details:
  
  Secured Party Sale ONLINE ONLY AUCTION
  
  
  (3) Complete 2 mW Co-Generation Systems
                   Previously operated at Dean Foods
  
  
  Franklin, MA  ■  Lynn, MA  ■  City of Industry, CA
  
  
  Date: Bidding Closes Tuesday, May 22nd 
  Inspection: By Appointment Only
  
  Each 2 mW Co-Generation System Includes:

• 2001 - GE Jenbacher JGS 616GS NL Natural gas fired 16 cylinder turbo charged skid mounted, water cooled generator
• 2006 - Cain Industries ESG1-824D17.6CSS Natural gas exhaust steam generated water tube boiler
• 2004 - Steuler SCR and catalyst system
• 2006 - Jenbacher PLC generator control centers
• Quincy and Pioneer gas compressors,  as new as 2005
• 2006 - Horiba Enda E-4220L Continuous emissions monitoring system
• All accompanying support equipment, replacement parts and supplies
• And more!

Check out the full details of this online auction at:


http://www.crgauction.com/auctions/dean_foods/details.php


where you will also find details about how to register to participate.

(We recommend that the buyer consults the manufacturers as appropriate for advice on suitability for this plant for use at your landfill. Biogas quality, the presence of impurities, and corrosion are all aspects which need considering when selecting plant for gas utilization.)


About the auctioneer:


Capital Recovery Group is a recognized leader in the appraisal and disposition of industrial and commercial assets.


Capital Recovery Group, LLC
1654 King Street, Suite 9
Enfield, CT 06082
Tel:   860-623-9060
Fax:  860-623-9160


If you want to know more about them you could do worse than spend five minutes on their website, read their testimonials page, and take note of the list of blue chip companies they list as clients.


http://www.crgauction.com/auctions/dean_foods/details.php


We hope that you found this email of interest. At Landfill-Gas.com we are always pleased to receive comments and feedback, and we would be delighted to hear from you if you have any comments about this or any other aspect of our communications.

Round Up of UK Government Actions in March-April 2012: AD Planning Requirement Relaxed, Feed-in Tariff Scheme Rates Increased, Bioenergy Strategy Published

With the announcement of economic figures last week, which show that the UK has slipped back into recession, many are asking what the coalition government is doing to stimulate the economy at a time when clearly everything conceivably possible which might boost business, and benefit the nation, should be being done by them.

Thankfully, the Anaerobic Digestion and Biogas industry, is being recognised as one such case, and there have been some really positive moves forward by the UK government in the form of the announcements which we have listed below:

Rural Planning Requirement Relaxed for Small-scale Anaerobic Digestion

A number of renewable energy technologies including anaerobic digestion have received a boost following revisions to the English Town and Country Planning Order.

From April 2012 small-scale energy installations in England built on agricultural or forestry land will be exempt from planning permission under amendments to the Order.

The amendment means that planning permission will no longer be required for farmers and landowners who install anaerobic digesters or any associated storage buildings with a ground area of less than 465 square metres on farming or non-domestic land.

The changes could result in a significant boost to the rural economy by removing legislative red tape, reducing energy bills for farmers and decreasing greenhouse gas emissions.

See the statutory instrument here: http://www.legislation.gov.uk/uksi/2012/748/made/data.pdf

Feed-in Tariff Scheme Rates Increased for Anaerobic Digestion from 2 April 2012

Feed-in Tariffs (FiTs) subsidy rates for electricity generated through anaerobic digestion have today been increased in line with the retail price index.

The tariffs are now as follows:

For a digester less than 250kW in size the rate is now 14.7 p/kWh
For a digester between 250 and 500kW in size the rate is 13.7 p/kWh
For a digester between 500kW and 5MW in size the rate is 9.9 p/kWh

For more information visit the Department of Energy and Climate Change FiTs web page www.decc.gov.uk/fits/.

UK Bioenergy Strategy Published

The UK Government published its Bioenergy Strategy on 26April 2012. Bioenergy is expected to play a key role in meeting the UK's 2020 renewable energy target as well as longer term carbon reduction targets to 2030 and 2050. But the Government also recognise that bioenergy is not automatically low carbon, renewable or sustainable: alongside its many positives, bioenergy carries risks.

The UK Bioenergy Strategy, published jointly by DECC, Defra, DfT sets a framework of principles to guide UK bioenergy policy in a way that secures its benefits, while managing these risks. The strategy’s overarching principle is that bioenergy must be produced sustainably and that there is a role for UK Government to steer sustainable development of bioenergy in the UK and as far as possible internationally.

A number of organisations provided supporting evidence for the report including bioeconomy consultants NNFCC, who predict the UK anaerobic digestion industry is likely to have an installed capacity of 320-580 MWth by 2020 and support up to 2,500 jobs with more than half being permanent.

For more information please visit the Department of Energy and Climate Change Bioenergy Strategy web page www.decc.gov.uk/en/content/cms/meeting_energy/bioenergy/strategy/strategy.aspx.

Chicken Barn with Heat from Anaerobic Digestion Plant is More Profitable Than Increasing Dairy Herd

At Bernd Mueller’s farm in Bockhorn, North West Germany, his investment in a new chicken barn would normally set him back with a €15,000 annual heating bill, but thanks to the efficiency of his biogas plant, this expenditure will be zero. What is even better is the fact that his 40,000 chickens will provide him with the manure he’ll mix with maize to produce and sell 725kW per hour of renewable energy produced every day.

This is all a far cry from just five years ago when Bernd was considering whether to expand his dairy cattle herd in order to try and make his farm more profitable.

“Buying more cows just didn’t compare to the potential I could see in biogas,” said Bernd.

“It has taken some time to go through the planning stages and fine-tune everything, but it has all been very worth it”.

Bernd Muller checks that all is well with his biogas process

Initially, Bernd used only maize as his feedstock, but now finds that a combination of 90% maize and 10% chicken manure produces much more gas. This increased biogas production which can be viewed at a glance via the monitoring system on his computer screen.

Now at this point, those that have some knowledge of the AD process will be slightly puzzled, as chicken manure would be unlikely to raise the gas production rate very much, given that it has a fairly low biogas potential compared with maize. Well, you would be right about that, and the reason for the increase is also down to efficient mixing getting the most out of the new manure feed.

Landia’s mixers help boost farmer’s biogas

Look a bit deeper into the biogas production rate and you will find out that at the heart of the biogas operation are three Landia PowerMix side entry mixers, positioned at the bottom, middle and top of the 21m diameter, 9.8m high digester.

Utilizing recirculated liquid from the continuous process with a total of 37 tonnes of maize and three tonnes of chicken manure per day, Bernd produces electricity for use on the farm, with ample left-over to sell to Germany’s national energy grid.  His fully automated system can also pass heat on to neighbours and maintain digester temperatures when necessary in winter, as well as service the new chicken barn, and a further one planned.

“Good mixing is essential to the reliability and productivity of my biogas system,” says Bernd.

“Landia’s mixers do an excellent job and haven’t given me any problems at all”, he added.

Maize for Bernd Muller's biogas plant 

It also hasn’t escaped Bernd’s attention that the Landia mixers minimise energy consumption.  Landia explains that, correctly sized mixing system allows adjustment of mixing operation times to types and quantities of feedstock, dry matter content and gas production. High methane percentage not only depends on the feedstock mix but very much on good mixing. It is the most essential tool for mechanical process optimization in the digester and can be controlled by the biogas plant’s monitoring system.

Trends are duly noted through the monitoring system probes, and should any of the monitored parameters look set to adversely affect the process, an alarm is raised.  It is also important to ensure that the gas the plant produces is at all times cleaned, and then cooled from 41 degrees to 8 degrees, before it enters the big 12 cylinder DEUTZ engine (which is connected to the electrical turbine).

In addition to all the benefits from their biogas plant, the farm also gains a greatly enhanced digestate product for use as a fertilizer – a proportion of which is sold on.

In addition, the entire process is virtually odour-free.

Efficiency is, as reported by Landia, evidently extremely high at Bernd’s farm.  Last year a 97% electricity production time rate was recorded, with just 3% of output lost during engine maintenance.  They are currently receiving a fixed price for electricity, and that regular income clearly helps with budgeting. Bernd’s profits have the potential to rise even further, Landia report, if the farm management reduces the balance of maize which is bought-in, by growing more themselves. Currently, only 40% is produced on the farm against the 60% balance which is bought from other farms.

Landia

01948 661 200

www.LandiaWorld.com

Harper Adams Anaerobic Digester – Leading the Way in Sustainable Energy

Image: Harper Adams College

Harper Adams University College in Shropshire is leading the way in creating and utilising sustainable energy through a £3 million plus renewable power system.

The rural focused college which has been five times winner of the Sunday Times University Guide 'University College of the Year' was one of three higher education institutions in England that are sharing a £10 million fund set aside for 'transformational projects under the Higher Education Funding Council for England's Revolving Green Fund.

The institution has put this towards an Anaerobic Digester plant which was constructed in 2011 and began generating power and heat towards the end of April the same year.

Recycling landfill bound waste

The plant uses 12,000 tonnes of food waste which would otherwise end up at landfill sites and 11,000 tonnes of dairy and pig slurry from farms. When opened it was anticipated that the digester would offset campus carbon emissions more than three times over. The digester produces renewable electricity and provides the campus with a highly effective waste management system.

The system also reduces the University College's reliance on manufactured fertilisers as the waste that is digested in it is recycled into liquid fertiliser and compost which can then be used for the farm and grounds operations.

Award winning

The Harper Adams has won accolades for this system at the Times Higher Education Awards where they won the Outstanding Contribution to Sustainable Development Award at the end of 2011. The prestigious event at London's Grosvenor Hotel was compered by Rob Brydon and the award was in recognition of all the hard work that went into making the anaerobic digester a success.

One of the judges Patrick Finch who is bursar and director of estates at the University of Bristol said of the system: “Harper Adams has produced a ground breaking project. While this has been trialled before, the judges felt that the work on developing a system that would produce a step change in carbon management at the college had the potential for wider application in the higher education community and in the farming sector. Energy and carbon savings, reduction in waste to landfill and release of farmland for growing food crops together present a compelling case.”

First year success

Twelve months on since the system first started producing renewable energy the college is now engaging with local schools to make further developments. Leftover food from school dinners from four county schools will be recycled at the plant and turned into power and energy at the college. This venture is part of a pilot scheme which if successful then waste from all schools in the Shropshire area could be sent to the plant.

The schools in the pilot are using specialist waste contractor Cartwrights. The local contractor has also benefited from external funding in the form of the Waste & Resources Action Programme to help them convert an existing bin lorry into one that would be suitable to carry food waste safely.

James Wood who is the college's energy plant manager said: “The anaerobic digester has now been operational for a year, and we are all delighted to be gaining interest and support from the local community. We really hope that the schools partnership is a success and can be rolled out across the county.”

Community spirit

The Harper Adams project is a fabulous example of the community all pulling together to produce a system that benefits the county. The college also uses an eco vehicle around the plant which carries the slogan “A cleaner solution without the pollution”. The slogan was chosen after the college ran a staff competition to come up with a catchy slogan for the vehicle which is to be used around campus collecting recycling and other jobs.

The college saw the competition of really getting the staff behind the plant project and getting them interested and involved in the sustainability of it. The campus uses electric vehicles around campus as another way of the college being eco friendly.

The winner of the competition was rewarded with an energy monitor worth £40 and the honour of having their slogan added to the eco vehicle and therefore being part of campus history.

In order to find out about the fantastic ways in which Harper Adams University College are helping the environment through all their sustainable activities visit www.harper-adams.ac.uk/sustainability.

Izzy Harrington is a freelance writer from England who writes technology articles covering everything from Tempur-Pedic comparison to future technologies.

Case Study on Commercial Viability and Funding for US Anaerobic Digestion/ Biogas Facilities - Download Available

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New case study investigates the commercial viability and funding structure for Anaerobic Digestion and Biogas facilities in the USA

Zero Waste Energy and Harvest Power are just two of the innovators taking advantage of Anaerobic Digestion as a means of recovering value from waste. These companies are amongst a recent batch of well-structured companies that have secured long term agreements to make this process a reality according to a recent abstract released by Renewable Waste Intelligence.

The potential of anaerobic digestion is significant. With a sound scientific profile from European projects and an increasing appetite for more sustainable waste management options, there are trailblazing projects springing up all over the USA, often backed by strong local support, waste management money and European project developers.

The primary concern for these innovators has increasingly become one of commercial viability rather than a need to prove the science. With the payback on larger facilities upwards of 10 years and the initial investment substantial – these projects are taking longer than expected to materialize. Plus they require a very long term approach by the waste managers at a local level who have to be prepared to commit to long term contracts (and therefore a fairly rigid pricing structure).

The abstract that has been released by Renewable Waste Intelligence looks at both the pros and cons of AD as a means of tackling waste management for organics. But in addition, there is some consideration given to the funding structure of Anaerobic Digestion facilities with a case study to give more detail. Greg Shipley (CEO of Waste to Energy LLC) said of the report, “'Renewable Waste Intelligence' has created a well written and informative report. This, in combination with the detailed case studies would be valuable to those seeking proof of viability of investing in renewable waste.”

The abstract can be found online through Renewable Waste Intelligence. To download the free copy of the abstract click here and it will be sent straight to your inbox.

If you need more information, then you can contact Oliver Saunders on osaunders@renewable-waste.com or +44 (0) 207 375 7185 or Freephone US 1800 814 3459 ext 7185 to find out more about the report and also the work they are doing in Anaerobic Digestion.

Pig Farms to Become Less Stinky Down Under Due to Covered Anaerobic Pond Design

It is good to see that an innovative biogas system, developed at NIWA Hamilton, has been embraced by the Australian pork industry. It provides an alternative electricity and heating source and was developed by New Zealand's National Institute of Water and Atmospheric Research (NIWA). Personally,

I am surprised that these lagoon systems would make sense in the cool New Zealand climate, much better that the Aussies use this technology which should work well in their hot climate. Read-on for more about this development, and also I encourage you, as always, to visit the original article by following the link which is provided below the article:

The Australian pork industry association, Australian Pork Limited (APL), has collaborated with NIWA and several pork producers to design and build covered anaerobic pond based biogas systems. So far, four systems are currently at various stages of construction.

NIWA worked in collaboration with the New Zealand Pork Industry Board and Energy Efficiency and Conservation Authority (EECA) on the New Zealand prototype.

NIWA identified that anaerobic digestion in covered waste ponds holds significant potential to reduce odour and greenhouse gas (GHG) emissions, while providing biogas as a local energy resource.

Australian pig farmers are incentivised to use the technology to reduce farm GHG emissions. The recently introduced Carbon Farming Initiative (CFI) allows farmers and land managers to earn carbon credits by storing carbon or reducing greenhouse gas emissions from the agricultural sector. These credits can then be sold to businesses with an emission liability, such as fossil fuel power plants or chemical processors.

"The system makes good sense," says NIWA research engineer Stephan Heubeck, who has driven the development of the technology. "Anaerobic digestion in covered ponds holds significant potential to reduce odour and greenhouse gas emissions from the farming sector. At farm scale, this energy resource can be used for heating and/or to generate electricity."

The first pond based biogas system that NIWA designed was a purpose-built 7000m3 covered anaerobic pond for Steve Lepper's piggery in Taranaki.

NIWA's simple and low cost design has proven effective and reliable over the last two years. At the Lepper piggery, the biogas is used for electricity generation and heating in a combined heat and power unit (CHP).

As well as providing the majority of the piggery's electricity needs during daytime, waste heat from the generator is used in a reticulated hot water system for keeping young pigs warm.

Steve Lepper expects to recoup his $120,000 investment ($30,000 of which came from an EECA grant) within three years.

For additional information:

NIWA

View the original article here

Want an Anaerobic Digestion Plant and Need Funding? Try UK WRAP £10M Fund

Are you interested in building an Anaerobic Digestion (AD) plant but just haven’t got the funding?

The organisation, WRAP, Working together for a world without waste, has a £10 million anaerobic digestion fund to loan out. It has just awarded its first loan from Ad Fund and is now looking for more applicants to award more money out. It awarded a one off £800,000 loan to Wilshire-based company Malaby Biogas, to construct and commission a new anaerobic digestion plant on the site of a redundant 12-acre smallholding.

The money will be added to other funding secured by the company for the AD plant, including support from Clydesdale Bank. Building of the new £5 million plant located at Bore Hill Farm to the south of Warminster, Wiltshire is already underway. Malaby, and its technology provider Marches Biogas, hope that commissioning will begin soon.

“Feedstock for the plant will be non-packed food waste supplied by a new commercial collection operator with additional material potentially coming from other commercial and industrial food waste providers within the local area,” explained Malaby director Thomas Minter.

“ Initially the plant will process around 17,000 tonnes of waste a year and we’d hope to be able to handle up to 20,000 tonnes at full capacity.”

The plant is expected to generate 4.3 million kilowatt hours of electricity a year, the equivalent required to power 1,000 homes. Around seven per cent of this is likely to be used to power the AD plant itself, and any excess that is generated will be sold on to National Grid.

“Malaby is the first of what we hope will be a number of companies to benefit from the AD loan fund and it is excellent to see such good progress being made at the Wiltshire plant,” said WRAP director Steve Creed.

“We’re currently considering a number of other applications and the new round of loan awards for 2012 has just begun, so we’d encourage anyone who is interested in the fund to get in touch with us.”

Defra Minister Lord Taylor said: “The energy that can be created from food waste that would otherwise lie rotting in landfill is astonishing. This £800,000 investment from our £10 million anaerobic digestion fund will help this new plant to be built so we can harness that energy to power our towns and cities and remove a cause of greenhouse gas emissions from landfill.”

A maximum of £10 million is available through individual loans ranging from £50,000 to £1 million, over a five-year period. Applicants for the current round can be submitted before April 30. Lord Henley said: “The Loan Fund builds on the Anaerobic Digestion Strategy and Action Plan to develop a strong and vibrant Ad industry. It will help to reduce the amount of food sent to landfill and give more businesses the opportunity to use AD to produce their own power and electricity.”

Marcus Gover, Director of the Closed Loop Economy at WRAP, said: “ “Across the UK, there are now AD facilities capable of managing 656,500 tonnes of organic waste each year, diverting waste from landfill, generating renewable energy and creating green jobs. The 300,0000 tonnes of extra capacity we expect this fund will create will bring the UK’s AD processing capacity close to 1 million tonnes per year.

“Ad is a reliable, safe and profitable resource efficiency process supported by the Government, industry, local authorities and communities.”

WRAP, which can provide a great deal of information in the field it deals with, and much like the Coalition Against Drug Abuse, provides information on its subject, has a finite loan pool and will select projects for funding through a competitive process with those applications most strongly meeting their criteria being offered a loan.

If you have a project to develop AD processing capacity and are finding it difficult to obtain asset finance from the usual commercial sources, WRAP may be able to help. So why not apply it worth a shot. The Anaerobic Digestion Loan Fund (ADLF) aims to support 300,000 tonnes of annual capacity to divert food waste from landfill by 2015.

The ADLF will offer direct financial support to organisations that are interested in building AD capacity in England in order to provide digestate of sufficient quality for a variety of UK markets and to generate renewable energy in the form of biogas through the diversion of food and other organic resources.

(Guest Author: Imogen of the Coalition Against Drug Abuse)

Stuttgart, Anerobic Digestion Pilot Plant Converts Fruit and Veggie Waste into Natural Gas for Cars

This post is all about the pilot plant in Stuttgart that makes biogas out of waste from wholesale markets, and in Europe these days there isn't a great deal of innovation or news in that. What I found of interest though is that:

1. The biogas is from the outset being used to provide the feed for a high quality cleaned up form of biogas which is called natural gas once the impurities have been removed and it has been suitably compressed. This further innovation has really taken off this year and it makes a great deal of sense to use this to power vehicles, rather than just generating electricity from the biogas.

(The video below is included as an example of German biogas technology, on another project.)

2. We have to wait to almost the end of the article to be told the other aspect which I feel is worthy of note, and that is the news that energy company Energie Baden-Württemberg (EnBW), is to use membranes to process the biogas produced. Until now, the established method for cleaning the biogas has been the traditional one which uses chemical methods and quite a lot of use is made of water. The use of a membrane will be very good news for Anaerobic Digestion Plant operators, providing it is simple to use, reasonably low in energy consumption and initial capital costs, and reliable.

Now I will let you read the extract from the article included below. Please also visit the original website via the link we have provided below, and by doing that you will help support the project:

Some readers might remember the Mr. Fusion unit in Back to the Future that Doc Brown fills with household garbage, including a banana peel and some beer, to power the iconic time-traveling DeLorean. While we're still some way from such direct means of running our cars on table scraps, researchers at Fraunhofer have developed a pilot plant that ferments the waste from wholesale fruit and veg markets, cafeterias and canteens to make methane, which can be used to power vehicles.

Given the rising oil prices in recent years, many drivers have been converting their cars to run on natural gas. But like oil, natural gas is a fossil fuel with limited reserves whose price has also risen in recent years and is likely to continue to do so. Fraunhofer's development provides an alternative way to obtain natural gas, not from Earth's reserves, but from fruit and vegetable waste.

The pilot plant is part of the ETAMAX project and has been constructed adjacent to Stuttgart's wholesale market. Due to begin operation in the next few months, the plant generates methane by using various microorganisms that act on the food waste in a two-stage digestion process that lasts just a few days.

"The waste contains a lot of water and has a very low lignocellulose content, so it's highly suitable for rapid fermentation," says Dr.-Ing. Ursula Schließmann, head of department at the Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB).

Because the microorganisms require constant environmental conditions to function and the waste can vary in composition every day - some days it will contain a high proportion of acidic citrus fruits, on others it might have more cherries, plums or lettuce - the researchers must adjust the pH value through substrate management.

"We hold the waste in several storage tanks, where a number of parameters are automatically calculated - including the pH value. The specially designed management system determines exactly how many liters of waste from which containers should be mixed together and fed to the microorganisms," explains Schließmann.

Enhancing the environmental benefits of the plant, everything the plant generates can be utilized, including the liquid filtrate and the sludgy residue that can't be broken down any further by the microorganisms. The filtrate water, which contains nitrogen and phosphorous, is used as a culture medium for the cultivation of algae at a second sub-project in Reutlingen. And while two thirds of the biogas produced at the Stuttgart plant is methane, around 30 percent is carbon dioxide, which is also used to cultivate the algae. Meanwhile, the remaining sludgy fermentation residue is delivered to the Paul Scherrer Institute in Switzerland and the Karlsruhe Institute of Technology, where it is also converted into methane.

In addition to Fraunhofer, the ETAMAX project also involves the participation of energy company Energie Baden-Württemberg (EnBW), which uses membranes to process the generated biogas, and Daimler, which supplies a number of experimental vehicles designed to run on natural gas. The German Federal Ministry of Education and Research (BMBF) has funded the five-year project to the tune of six million euros (approx. US$7.97 million). If the various components mesh together as hoped, similar plants could be built where large quantities of organic waste can be found.

View the original article here

Jobs: AD Process Technician Needed by Malaby Biogas, Warminster, Somerset UK

Malaby Biogas are approaching the operational phase of their state-of-the-art Anaerobic Digestion (AD) plant in Warminster, close to Frome and on the Wiltshire/Somerset border.

As a result they are keen to grow the existing team and recruit an AD Process Technician. With the plant approaching the operational phase, this is an exciting opportunity to join a small and innovative company in an increasingly popular industry, which offers a sustainable alternative to landfill waste.

Malaby Biogas is Warminster's newest greentech business

The role:

To efficiently assist with the day-to-day operations of a new AD plant. The plant operates automatically 24/7 but the role will be mainly normal working hours with scheduled weekend duties. This is both a technical and compliance-focused role, as well as an activity which will require physical exertion and some manual work. The AD Process Technican will control the flow and processing of food waste, in a state-of-the-art facility.

You will be responsible for diagnosing operational issues and undertaking corrective action where necessary. You will use initiative and an analytical approach to monitor gauges, meters and control panels, using your judgement to ensure an efficient and effective process. The role will also involve being responsible for loaders, hoppers, pumps, engines and generators, ensuring safe and continuous operations. Record-keeping is critical, and you will keep accurate and detailed records of plant settings and outputs, as well as adhering to health and safety and environmental compliance. The role will have a degree of responsibility for the critical control points within the process.

The person:

We are looking for someone with a fairly unique set of skills, but who principally has a flexible approach to working within a small and focused team in a "start-up" environment. You will be comfortable working autonomously in a responsible and technical role, with a high degree of initiative and a "can do" attitude. A meticulous approach to operations, monitoring and records is essential. At the same time, a willingness to get your hands dirty is also important as without your input on a day-to-day basis the plant will not function effectively.

Educated to a minimum of GCSE or equivalent in Maths and English, the ideal candidate will also be able to demonstrate a strong analytical mind and good IT skills.

The ideal candidate might come from a waste management, engineering or sciences background having worked in a similar process-driven role. Alternatively, the role might also suit someone from a farming or agricultural background looking for a more technically-challenging opportunity.

Due to the growth of this innovative sector, this role offers real and rapid career progression for the right candidate.

To apply please send your CV to: recruitment@malabybiogascom or call Thomas Minter for an informal chat on 01985 211216.

View the original article here

New Biogas Plant is Apple's New Development and Not A New Data Centre Says Wired News

Apparently construction seen starting at Apple's Maiden data center. hs been causing industry rumors Apple was seen to be building something new at its Maiden, North Carolina, data center, but the uber-secretive company wouldn’t say what it was. So, the Wired Blog took to the skies to find out.

(Work which has now started is not visible on this older video, nevertheless you can get a feel for the scale of the development from the video. above. This is truly great publicity for Anaerobic Digestion, and biogas production from it.)

Overhead photos shown on their website, taken last month show Apple’s $1 billion data center and two adjacent areas where Apple has started new construction. In the IT industry rumors were flying aound which suggested that Apple was building a second data center beside the first, but judging from their photos and from county building permits Wired says it is most likely that this is not the case. In fact, in all likelihood, the two construction areas will house the new-age biogas fuel cell plant and the massive solar array Apple will use to help power the original facility.

The Maiden data center is home to Apple’s iCloud service, a way for consumers and businesses to store files, photos, and other data on the web and use it across a wide array of devices. The data facility itself cost $500 million, but Apple has pledged to spend $1 billion on the site over the next decade. Opened for business around the beginning of the year, the Maiden center is just one of the many custom-designed data centers the giants of the web are building to supply their ever-growing array of web services. Google has built several of its own dedicated data centers across the world, and the likes of Microsoft, Facebook, and Yahoo aren’t far behind.

The iCloud has been growing like gangbusters since it was introduced last fall, and when Apple pulled a few construction permits early last month, that prompted speculation that the company may be doubling down and building a second data center on the site. But clearly, that’s not the case — though Apple is starting to build a new data center on the other side of the country, right next door to Facebook’s massive facility in Prineville, Oregon.

To power its data center, Apple is building both a biogas fuel cell plant and a solar array.

Apple’s North Carolina permits describe a 21,030-square-foot building. That’s bigger than your typical Apple Store, but not nearly big enough for the sort of data center Apple would build. The company’s existing Maiden facility is 500,000 square feet.

More likely, the new building will house the 24-200 kilowatt fuel cell systems that could be partially operational as soon as June. This plant is noteworthy, as it will be one of the largest such plants in the U.S. and it’s the biggest such project built by a data-center operator.

But judging from our photos, even when the biogas plant goes live, Apple will still have room to squeeze a second massive data center into the spot — should the need arise. Maiden Town Planner Todd Herms told us where the solar array was being installed, but he didn’t know if the new building next to the data center was the biogas plant or not.

A second, somewhat sobering observation is that Apple had to mow down an awful lot of trees in order to build its environmentally friendly 100-acre solar array, right across the street from its data center. You can see the before and after photos here:

Before construction, there were 100 green acres on the other side of Maiden's Startown Road.

Now it's been razed, to make way for Apple's solar array !

Apple solar array effort has already come under fire from a data center guru James Hamilton at rival Amazon, who said last month that it just may not make sense to use so much land for a solar array that may end up generating a fairly small fraction of the data center’s power. Apple bills its solar farm as a 20-megawatt array, but that represents the solar farm’s peak capacity on a sunny day. In reality, it will probably produce less power than the 4.8-megawatt biogas facility, according to Gary Cook, an IT analyst at Greenpeace.

View the original article here

Those that know the Anaerobic Digestion process will not be surprised by he cirticism being made here of the capability of the solar array, compared with the AD Plant, and it is good to see the comparison of AD/ biogas production to produce power capacity overall being recognised. It could also have been added that the biogas plant will be able to meet demand for power when it is really needed, that being at night when it is really cold, as well as in the daytime.