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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.

Watch this Video showing a small scale compact digester for producing biogas from food waste in Pune, India. Contrary to the image which AD has in the developed nations AD Plants do not have to be huge and technologically complex.

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 : IBBK International Biogas Events September/October 2009 IBBK is offering two additional international events for people working in the biogas industry in September and October 2009:1) INTERNATIONAL BIOGAS TRAINING COURSE (5-Days) taking place 28 September - 2 October 2009 traditionally at the University of Hohenheim, Stuttgart, Germany The course coves the following topics:- process of biogas formation- principles of designing biogas plants- applied technology- safety issuesPlease, see our leaflet (as of June 2009) and Registration PDFhttp://www.biogas-training.com/course20092) INTERNATIONAL BIOGAS STUDY TOUR (4 Days)23 - 26 September 2009, starting in Berlin and ending in the area of Cologne, Germany Participants will visit biogas plants and manufacturers in Germany.Please, see our leaflet (as ... Author : Steve Last Financing Methods for UK Government Biogas Plants I am frequently being asked to include more information in the blog and at the web site (www.anaerobic-digestion.com) about financing and contracting routes for the larger waste feedstock Anaerobic Digestion Plants. So here is some guidance based the Defra WIP compiled programme information a few years back.Development of any Advanced Biological Treatment (ABT) Plant will involve capital expenditure of several million pounds. There are a number of potential funding sources for Local Authorities planning to develop such facilities, including:Capital Grants: general grants may be available from national economic initiatives and EU structural funds;Prudential Borrowing: the Local Government Act 2003 provides for a new 'prudential' system of ca... Author : Steve Last Anaerobic Digestion Technologies to Get Help Through Feed-in-Tariffs The following has been posted in MRW, and is great news for the future of UK AD.Financial support for anaerobic digestionLiz Gyekye, 02 Feb 2010The Government has announced ambitious plans to provide financial support for anaerobic digestion technologies through feed-in-tariffs (FITs) and the “world’s first” renewable heat incentive scheme.The schemes are designed to bring about a significant increase in the amount of locally produced green energy and help the UK meet its renewable energy targets.FITs is a financial support system that will incentivise small scale low-carbon electricity generation by providing “clean energy cashback” for householders, communities and businesses. It will work alongside the Renewables Obligation, wh... Author : Steve Last Biogas Plant Gasholders and Managing CDM In-house The following article is based on an extract of Wet News (November 2008 issue)the original article is about work done by May Gurney to refurbish and improve the current Severn Trent Coalport, anaerobic digester which digests sewage sludge. I was particularly interested in the information about the biogas gas holder, which they also call a gas-bag due to its flexible construction. We are told that, the installation of a new, larger gas bag will add to efficiency of the site. The new spherical gas holders are the most immediate visible sign of the state of the art solutions that have been implemented at the Severn Trent sites. These are golfing ball white spheres which are created from 2 polyester and PVC-based skins, the outer being inflated... Author : Steve Last Scottish Waste and Resources Conference 2009 Sponsored by WRAP and VALPAKThe Scottish Waste and Resources Conference will host the annual 2 day conference, exhibition and awards dinner on 6th and 7th October 2009.As the title suggests, the partnership event is not exclusive to those working in the waste management industry. At this crucial time in our future development we must engage with the wider resources management sectors. The conference programme for 2009 features the overall theme of Delivering Zero Waste in Scotland which will provide a pick and mix choice of sessions on key policy updates, new innovations and hearty debate amongst practical participative sessions. Alongside the conference there is an indoor exhibition which will allow you to meet and discuss your requiremen... Author : Steve Last Automatic Blogging RSS to HTML

 

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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.