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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 : Anaerobic Digestion Can Be Best Overall Including Being Cheapest Overall I guess that if you are a long term subscriber this headline will not be a surprise, but it is good to report that others think so too! Read on and find out why.Processing food waste using anaerobic digestion technology is not necessarily as expensive in relative terms as some councils may think, consultancy Eunomia has claimed.Speaking at the AD In the City event held in the UK by BiogenGreenfinch last month, senior consultant, Dr Adrian Gibbs, said that using AD to process food waste collected separately could work out cheaper than processing commingled food and green waste together in an in vessel composting plant.Dr Gibbs explained that a report by Eunomia had found that sending food waste to AD and green waste to windrow composting cos... Author : Steve Last BioPower Generation Conference USA, Chicago, 8 - 9 July 2009 In a report published by Biomass Magazine it states that the U.S. Interior Department plans to invest $15 million in 55 biomass projects in 12 states. It goes on to say that “the projects have the potential to provide additional economic benefits to support local or regional employment through post-treatment use of biomass in wood products or power generation.” Leading utilities, project developers, policy makers and investors plan to meet in Chicago on the 8 – 9 July for the 5th BioPower Generation Conference. Experts already confirmed include:- Reed Wills, President, ADAGE- Gary Evans, Chief Executive Officer, Green Hunter- Leonard Fagan, Vice President, Engineering and Technology, American Renewables- Andrew Singer, Senior Vice P... Author : Steve Last Croatia Goes Big on Biogas with Largest Anaerobic Digestion Plant Croatia to build largest biogas production plant in EuropeVUKOVAR, May 14. (Hina). A cornerstone laying ceremony was held on Wednesday at Ovcara farm outside the eastern Croatian town of Vukovar for the construction of the future largest biogas production plant in Europe.The 30 million EUR project has been initiated by the Vukovar-based "Bionergija" company, established by the local Vupik agribusiness and several Croatian and foreign entrepreneurs.The future plant, which should be built by the end of 2010, is expected to produce 10 megawatts of electrical energy and 11 megawatts of thermal energy daily.According to a consultant of the Bienergija company, about 700 tonnes of biomass should be ensured daily from agricultural crops on Vupik-... Author : Steve Last Swedish Co. Helps S Korea Convert Food Waste Into Biogas By KELLY OLSENSEOUL, South Korea (AP) — The South Korean city of Ulsan lets water generated from processing food waste run off into the ocean, which can generate methane gas harmful to the environment.Now, with the help of a Swedish company, it is going to start converting that waste water into biogas, a type of clean fuel that can be used as power to heat buildings and even power vehicles.South Korea is looking for ways to increase the use of biogas and other clean energy alternatives amid a push by the government of President Lee Myung-bak to embark on a new development model that emphasizes so-called green growth.Ulsan, a brawny industrial center of about 1 million people on the country's southeastern coast, saw biogas as an attractive... Author : Steve Last Using Biomass to Produce Electricity More Efficient than Transforming the Biomass into Biofuels The following is part of a newsletter from Green Power Conferences publicising their forthcoming BioPower Generation USA conference, Chicago, USA, 8-9 July 2009.It certainly got me thinking, as I had always assumed the opposite to be the case, and I would dearly like to be able to attend to find out more. By the way if you are not already subscriber to their Newsletter, get over to their web site (link given below) subscribe and enter the competition for a free event pass.According to a recent report in Science, using biomass to produce electricity is 80% more efficient than transforming the biomass into biofuels and twice as effective in reducing greenhouse-gas emissions.Join leading utilities, project developers, policy makers and investo... Author : Steve Last Add Data Feed Content to Your Website Amazon RSS Feeds

 

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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
• UK Government Spending Review Will Aid AD
• 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.