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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.

Vote in the poll below and
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 Offers Biogas Course and Study Tour, Stuttgart Ladies and Gentlemen,Dear Biogas Friends,This year IBBK is offering two international events for future biogas operators and people working in this specific field:1) INTERNATIONAL BIOGAS TRAINING COURSEtaking place 15-19 September 2008 at the University of Hohenheim, Stuttgart, GermanyThe course covers the following topics:- process of biogas formation- principles of designing biogas plants- applied technology- safety issues2) INTERNATIONAL BIOGAS STUDY TOURfrom 21-27 September 2008, starting in Stuttgart, GermanyParticipants will visit biogas plants and manufacturers in Germany, Austria and possibly Italy.We offer special rates for booking both events. The number of participants is limited – therefore we recommend an early registration.F... Author : Steve Last Visit My New Anaerobic Digestion Squidoo Lens! I have written about Anaerobic Digestion with a broad international slant at the Squidoo web site.I have called it:Biogas Digesters - Advantages, Facts and FiguresEver visited Squidoo? Anyone can add a Squidoo site - called a lens.You can comment and vote on my attempt at promoting AD (which I have called Biogas Digestion, as I gather they are more commonly known as this in the US).In Fact - have fun with the Poll! Tell us whether Biogas Digesters are:-1. Going to be a great tool in reversing climate change2. Great but too capital cost intensive and too risky to invest in just yet3. Something I don't have an opinion about4. Far too smelly to even think about!5. Good for the Archers (BBC Radio 4 Serial) but not for me!The Digester Lens at Sq... Author : Steve Last 2008 Will be Good Year for Renewable energy? January 2, 2008 - Exclusive By David Ehrlich, cleantech.comA new report says alternative energy stocks should do well in 2008, with MEMC getting a strong valuation for the sector. It could be a strong year for alternative energy as a whole, according to a new report, but the second half of 2008 could pose a problem for solar stocks.The report from Thomas Weisel Partners, Alternative Energy: 2008 Outlook, said investor interest in the sector remains extremely high, with solar and demand response likely to get the biggest boosts in the new year."Public and government opinion is rapidly shifting toward increased action onglobal warming, carbon emissions, renewable energy generation and newenergy-efficiency technologies," said Jeff Osborne, a... Author : Steve Last Investment in Clean Energy Tops $100 billion in 2007 New investment in clean energy companies and assets hit $117 billion last year - up 35% on 2006's $86.5 billion, according to analysts New Energy Finance (NEF). The figure was $20 billion ahead of the company's prediction, despite tighter conditions in the credit markets - and NEF is predicting strong growth for 2008.NEF attributes the strong growth to the continuing strength of 'non-financial drivers' - such as regulation, political will and concerns over energy security. It also notes a shift in focus from more mature wind and biofuels markets in Western Europe and the US, towards Asia, Brazil and other developing countries.Michael Liebreich, chief executive of NEF, said that the sector has still to increase the volume of clean and cost-e... Author : Steve Last UK Environment Agency Announces Consultation on a New Initiative to Reduce Organic Waste Sent to Landfill The following is a UK Environment Agency Press Release.Encouraging technology that reduces the amount of organic waste sent to landfill is the driving force behind a consultation launched today (Monday) by the Waste Protocols Project, a joint WRAP (Waste & Resources Action Programme) and Environment Agency initiative.The Quality Protocol for the production and use of quality outputs from Anaerobic Digestion, could make it easier to turn biodegradable waste into valuable products such as fertilisers and soil conditioners. It could also ease the regulatory burden by defining when the digestate ceases to be waste and therefore no longer needs to be subject to regulatory control.Anaerobic Digestion (AD) is a natural process of microbiological c... Author : Steve Last Rss Feed Reader Increase Traffic

 

We are UK based but with worldwide interests as champions of AD technology.

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We have recently added:

• Biomass Energy Sources
• Chloride Level Anaerobic Digestion
• MSW Biogas Plants in China
• UK Government Spending Review Will Aid AD
• Anaerobic Techology Provider List
• Anaerobic Lagoons
• UASB Reactors
• Advantages and disadvantages of anaerobic treatment
• Bio-gas Yields table for agricultural feedstocks such as slurries and manures
• AD Basics- Guest Article

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.

© 2008 Anaerobic Digestion.Com