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Anaerobic Digestion Systems Web Site

We also have a section on Anaerobic Digestion in Agriculture.

“We think that Anaerobic Digestion has a great future amongst the biological technologies which will become the tools for sustainable waste management throughout the 21st Century, working with nature to maintain the natural carbon cycle to the benefit of man.”



Our mission on this web site is first and foremost to provide our visitors with the information they seek, assuming that these will range from those without previous knowledge, to informed student researchers, and also will include knowledgeable professionals seeking detailed technical information.

This is a very wide readership to serve. We hope that we cover this breadth of knowledge, and that by visiting a few pages you will find the general or detailed information you were seeking. If you would like to see additional features contact us, by email, or by feedback by clicking at the top right of this page.

Those new to AD might wish to start by reading our Introduction to Anaerobic Digestion section.

Existing suppliers might wish to see our technology provider table here.

We also, in particular, seek to help in the resolution of real-life feasibility questions, for new site specific applications of this technology. This may be as part of your sustainable waste management planning. Or maybe, on your farm. We have published an eBook on the subject of Anaerobic Digestion Plant Feasibility Studies here which is available for immediate downloading.

Watch othis video showing a US Batch AD Process, and get a feel for the concept of modern AD technology development.

The popularity of AD is set to rise again in 2008, with UK Government and EU support.

Why not email us and tell us about your AD Project at info@anaerobic-digestion.com , and if we think that the information is of interest to our subscribers we will post your news to them, and your item will also appear on our AD blog. With the rising number of our subscribers this is becoming very useful publicity.

Build Your Own Anaerobic Digestion Plant in Your Back Yard

In our video below we review a great new ebook. Now you can build one! Use the gas for cooking! Save money on gas.

We are fast becoming a recognised independent web community resource in AD. Please contribute and help us to make this web site better.

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then you will see how others have voted.

Definition of AD:

Free Classic Book: Click here.

Anaerobic Digestion (AD) is a process whereby organic waste is broken down in a controlled, oxygen free environment by bacteria naturally occurring in the waste material. Methane rich biogas is produced thus facilitating renewable energy generation. As a result, materials that are currently going to landfill can be utilised; natural methane emissions are reduced and conventional generation with its associated carbon emissions is displaced. The residual nutrient rich liquor and digestate is suitable for use as fertiliser on the farmland surrounding such a plant, reducing the need for artificial fertiliser.

Anaerobic Digestion is a form of composting. Generally, the term composting is used to refer to aerobic composting. Find out more about composting at our associated commercial composting web site.

(Anaerobic Digestors are also called bioreactors, or biomethanation plants.)

Methane to Markets

Want to know more about the US’s recent Methane to Markets initiative? More ...
 

Anaerobic Digestion News Updated : Anaerobic Digestion Has Big Role in Zero Waste Britain Announcement The path to Britain becoming a zero waste nation was announced last week by Environment Secretary Hilary Benn at a summit of Local Authorities and the waste industry.Hilary Benn said:"We need to rethink how we view and treat waste in the UK. Why do we send valuable items like aluminium and food waste to landfill when we can turn them into new cans and renewable energy? Why use more resources than we need to in manufacturing? We must now work together to build a zero waste nation - where we reduce the resources we use, reuse and recycle all that we can and only landfill things that have absolutely no other use. "To do this all of us - government, local authorities, businesses and consumers - must do our bit. And we must make this momen... Author : Steve Last Selecting and Specifying Tanks for Anaerobic Digesters OK, this is not the most riveting subject to most of us! The reason for blogging about this is that our web site www.anaerobic-digestion.com now has a page devoted to nothing but tanks for anaerobic digesters and biogas plants and includes a new detailed list of UK tank suppliers.Take a look at the Tank Supplier List here.Tanks are available in several different sizes and materials being engineered and designed to be used inside anaerobic digesters and provide long life and leak free containment at digester operating temperatures and pressures. Tanks that are intended for anaerobic digestion and feed storage are available formed from a wide selection of materials which are selected based primarily on properties of chemical resistance, stren... Author : Steve Last Maximising the Value of Sewage Sludge Biogas - Study Reports The September 2009 edition of the Newsletter of UK Water Industry Research Limited, leads by reporting on their study into "Maximising the Value of Biogas". We thought that it contains some really interesting pointers to those involved in planning and running Anaerobic Digestion facilities, so we report on it in this posting. Biogas has for some time been employed by the UK Water industry as a source of energy for combined heat and power plants. The employment of biogas becomes more attractive as advances in technologies for biogas production, treatment and application, mixed with new financial inducements for various kinds of renewable energy progress. Optimisation of biogas production and use will also bring ecological benefits, includi... Author : Steve Last Monsal Obtains Planning Permission for their Food Waste Anaerobic Digestion Plant in March This follows up on our recent post about Monsal to bring you an update from them, when planning permission is obtained in very quickly time.Monsal in commenting on the success of the planning process said:“Planning was achieved in record time for this project. It was the result of our co-operative and very detailed approach to the planning/permitting process. We support biowaste AD projects from concept through financial close and subsequent delivery having the largest specialist team in the UK in this area. We operated as an integrated team working with Local Generation and the regulatory authorities to ensure the project and technology complies with all relevant environmental standards. This avoided abortive work and ensures that the ov... Author : Steve Last Scottish Government and Scottish Renewables Calls for UK Treasury to Release Millions to Invest in Renewable Energy Support for access to renewables cash growsScottish Renewables have joined the Scottish Government in calling for the UK Treasury to release up to £174 million to invest in renewable energy.The money is currently held by Ofgem under the Fossil Fuel Levy arrangements, which mean the Scottish Government is unable to access the cash without a corresponding reduction in its budget.Finance Secretary John Swinney has argued for the fund to be made available as additional money over and above the Scottish budget since this administration came to office in 2007.And today the cause will gain the support of Scottish Renewables, when Niall Stuart, chief executive of the green energy trade body, addresses a marine energy conference in Inverness.Mr Swi... Author : Steve Last Add RSS Feeds To My Web Pages More Web Site Traffic

 

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You can also sign up to our general Waste & Resource Management (Waster’s) Newsletter, here:

We have recently added:

• The biogas calculator
• Biomass Energy Sources
• Chloride Level Anaerobic Digestion
• MSW Biogas Plants in China
• Digester Tank Supplier List
• Anaerobic Technology Provider List
• Anaerobic Lagoons
• Advantages and disadvantages of anaerobic treatment
• Bio-gas Yields table for agricultural feedstocks such as slurries and manures
• Biogas Finance Articles Section

Visit Friends of Biogas

WebMaster, Steve Last reports: “Until about 2004 Anaerobic Digestion was considered by most in the UK to be little more than an interesting sideline to sewage treatment and of only academic interest to the waste & agricultural industries. “ “This changing rapidly during 2006/6 and we now receive many enquiries, and have several active projects in this area. We expect that many more will follow.” Want to find out about AD Technology Suppliers? Try our MSW AD PLant suppliers page here.

WHAT THE NEWSPAPERS SAY!!!!: “Sheep and cows bred to be less "windy" could have a crucial part in fighting global warming, according to Sir John Houghton, a climate change expert. Flatulent livestock reportedly contribute up to 30% warming”. WHAT OUR VISITORS ARE SAYING: Brett Spiller: This layout of the website is intuitive and therefore easy to navigate. I have found both the depth and breadth of information available very useful. D.K: It is a very informative site, gave brief information of the technology, particularly plug flow system/UASB, I forsee, that agri farm can be exporters of energy beside their produce, two in one, more cash flow, while keeping the environment protected. India. Damian D: Excellent website for information on biogas process and outline descriptions. Many thanks. Damian, Ireland. RV: Good site for general information, good and easy to use layout! Beds, UK OC: I am in need of block diagram-- how bioreactors are used in bio-methanation?" please help me. India. Try this here... TB: Why don't you have anything on the anoxic gas flotation process? AGF? US (Washington State University) - Sorry. No knowledge of this. Give us a link, and we’ll publish -Ed. KT: Great site, well done, however you are not looking at small scale co-operated systems like the Portagester which is an interesting little plant. However, as I have already said, lots of good info for anyone looking at Anaerobic Digestion to perform a number of services. I have also studied AD as an alternative decentralised sewage system and it is very interesting.  Unknown location. Good point! See the Portagester process page added Sept. 2007. J. O’M: Great Site - Very useful information for novice and professional: Ireland David D: A good site for an interesting subject. Some of the links could be made easier. Regards. United Kingdom Martino V: A very interesting and useful site. Italy 'Witchaya K: I’m come from Thailand and finding the information about anaerobic digestion in the rural village. I'm studying in master degree and making the project about the anaerobic digestion. Thank you. Thailand Renee K-B: I am new to this topic in particular but found the site address encouraging and have signed up for the newsletter. US Nick L: Great website so much useful information, am very much interested in AD with the possible applications and implications. United Kingdom KSVN: The site appears to be interesting. I am yet to browse thro the site. India A.G: Biogas production from any viable source is an obvious path in a petro energy stressed economy. My field of interest is on-site wastewater treatment, given GHG concerns carbon sequestering and energy production potential is subject to scrutiny right now. Comment: Relevent, well presented and thus good. US The above is just a sample of the many comments received.