About Biogas

Biogas in general

Useful information on biogas from FAB industry

Biogas is a gaseous mixture composed of methane (40-75 %), carbon dioxide (25-55 %) and traces gases (0-10 %). In anaerobic and dark environment organic material is metabolized by means of microorganisms (anaerobic digestion – AD).

Biogas is also well known as marsh gas, sludge gas, landfill gas or digester gas.
The term “Biogas” concerns the fermentation of waste materials or of renewable materials, respectively. Biogas is generated as a metabolite by methane bacteria.

The following picture shows the industrial process scheme of a biogas plant (AD plant):


How can Biogas be produced?

The degradation of biopolymers to Biogas and its components is done by microorganisms (in the digester) in four interdependent steps:

1. Hydrolysis:

In the first step water-insoluble biopolymers are fractionalized into basic monomer modules or in other dissoluble fragments. This reaction is done by facultative anaerobic microorganisms and disaggregated via exoenzymes.

2. Acidification:

The acidification takes place at the same time as the hydrolysis step (1st step). The low molecular compounds, which were built in the first step, are implemented in short-chain organic acids, alcohols, H2 and CO2.

3. Acetogenesis phase:

In the third step organic acids and alcohols are transformed by obligate H2-building acetogenic microorganisms to acetate/acetic acid, H2 and CO2, respectively.

4. Methanogenis phase:

Strictly anaerobic methane bacteria build methane and CO2 from acetic acid (~ 70 %) as well as from CO2 and H2 (~ 30%). For methane bacteria these reactions are an important energy source.

Biogas is made from…

Biogenic substrates like liquid manure, sewage, maize, grass, sunflower, biodegradable waste, slaughterhouse waste, vegetable and fruit waste,…..

How can Biogas be used?

There are various possibilities for the utilisation of “Biogas”.

  • electricity generation
  • production of heat
  • fuel production
  • supply in natural gas network

The pros and cons of Biogas:


  • green energy production (electricity, heat)
  • substitute of fossil fuels
  • reduction of greenhouse gas emissions
  • reduction of disposal costs (biodegradable waste as substrate)
  • subsidies by the green energy law
  • energy savings (covering of own energy demand)
  • saving of chemical fertilizer (closing of nutrient cycle)
  • increase of plants tolerance
  • CO2 neutral energy production


  • possibly unpleasant odor made of substrates
  • dependence on substrate price (if substrates are bought)
  • high Capital investment costs



Biogas Research and Consulting groupe, http://www.codigestion.com/www.codigestion.com (accessed 16 September 2013)

906394 comment(s)

LouseNorp 10.01.2017

<a href=http://devochki.top/>порно фото молоденьких бесплатно</a>
<a href=http://devochki.top/>молоденькая сосет член порно</a>
<a href=http://devochki.top/>порно сосущие молоденькие видео</a>
<a href=http://devochki.top/>порно молоденькие домашка</a>
<a href=http://devochki.top/>порно молоденькие 15 лет</a>

BrettSwila 10.01.2017

wh0cd13510 <a href=http://tetracyclineonline.us/>tetracycline online</a> <a href=http://lexapro-10mg.party/>lexapro 10mg</a> <a href=http://buytoradol.cricket/>buy toradol online</a> <a href=http://buy-propecia.us/>buy propecia</a> <a href=http://augmentinonline.club/>augmentin 875</a>

AlbertDon 10.01.2017

<a href=>

Bradged 10.01.2017

<b>Watch in HD</b>
<a href=http://telegra.ph/Watch-The-Little-Things-online-01-09>movie free online
great Drama
, Drama
Prove to yourself that you know all about movie by reading this article and verifying it. You can then proclaim to be an expert on movie.

Grossly underwhelming (spoiler free)Spoiler free review. Let me first start of by sayingf that I am not a Marvel ''fanboy'' orf a

Candidly yours with look progressing to on the notify

Olivia_Effow 10.01.2017

My funny story connected with my girlfriend. Full story at <a title="Funny sexy stories" href="http://nudeblog.startbewijs.nl">Click Url</a>

Robttrora 10.01.2017

Vente viagra 50 mg sans ordonnance en pharmacie. plantes pour stimuler la libido,
absence de libido chez l'homme,
kamagra oral jelly original erkennen
Cialis en vente 60mg par ordonnance <a href=http://erectcial.lo.gs/>Cialis 10 mg</a> pour homme.Acheter clomid 100 mg <a href=http://nomrxfr.unblog.fr/>Acheter clomid</a> pour homme.Acheter kamagra en pharmacie, Kamagra jelly en France pour homme <a href=http://franceimp.unblog.fr/>acheter kamagra</a> livraison rapide. homme impuissant dГ©finition,
perte de libido chez l'homme,
pilule pour homme fonctionnement,
libido masculine baisse.
augmenter la libido,
prix conseille cialis
viagra generique au quebec
<a href=http://biaclip.ir/34838/%d8%aa%d9%85%d8%a7%d8%b4%d8%a7-%da%a9%d9%86%db%8c%d8%af-%d9%84%d8%a7%d9%86%da%86-%d8%aa%d8%b1%db%8c%d9%84%d8%b1-batman-return-to-arkham.html#comment-1005>Acheter du viagra 50 mg achat</a>
<a href=http://tecdigital.tec.ac.cr/servicios/reformaeo/?q=node/479&page=1741#comment-214097>Acheter du viagra moins cher</a>
peut on acheter en pharmacie du viagra sans ordonnance

AnthonySpobe 10.01.2017

Здравствуйте,предлагаю вам сервис по написаю статей,курсовых,сочинений и тд...для институтов,школ,академий:
<a href=https://expertwriting.org/?cid=2181>college entrance essay writing service</a>
<a href=https://power-essays.com/?cid=2181>writing essay help</a>
<a href=https://power-essays.com/?cid=2181>thesis search</a>

цены приемлемые,быстрая и качественная работа!

instusuadbagold 10.01.2017

СТАВКИ НА СПОРТ - ПОСТИЖЕНИЕ НЕПОЗНАННОГО. ОБУЧЕНИЕ. Обучаем техникам интуитивной игры при спорт-прогнозах, в казино: Покер; Блэк Джек; Рулетка; Баккара. Лотерея. Форекс. Программа обучения составлена мах доступно для её освоения. У нас вы научитесь во время игры принимать мах-правильные решения. Ждем Вас https://goo.gl/ajvSjO
<a href=https://goo.gl/ajvSjO>реально заработать на биржевых прогнозах</a>

DavidReerb 10.01.2017

последние новости фото http://meganewsru.ru/poslednie-novosti-foto/index.php - More info!..

Add comment

In enim justo, rhoncus ut, imperdiet a, venenatis vitae, justo. Nullam dictum felis eu pede mollis pretium. Donec pede justo, fringilla vel, aliquet nec, vulputate eget, arcu. In enim justo, rhoncus ut, imperdiet a, venenatis vitae, justo.

* - required field

CAPTCHA image for SPAM prevention If you can't read the word, click here.



The sole responsibility for the content of this webpage lies with the authors. It does not necessarily reflect the opinion of the European Union. Neither the EACI nor the European Commission are responsible for any use that may be made of the information contained therein