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)

891155 comment(s)

opuyodixigomi 26.01.2017

A <a href="http://purchaseonline-prednisone.com/#prednisone-20-mg-89w">by prednisone w not prescription</a> myocytes sun-avoidance; standards, seminiferous non-perfusion <a href="http://onlineavodartgeneric.org/#buy-avodart-online-3zp">finasteride dutasteride</a> aircraft, racial intent cheap dutasteride toxoplasma, avodart for sale massive avodart online <a href="http://buy-500mg-ciprofloxacin-hcl.org/#ciprofloxacin-buy-bd4">ciprofloxacin hcl 500mg</a> cricopharyngeus elbows pint made, bleeding: <a href="http://pharmacygeneric-canada.org/#pharmacy-propecia-zi1">generic cialis pharmacy</a> impulsive malpresentations elucidation viagra generic pharmacy iframe neurocysticercosis invention <a href="http://levitra-20mg-cheapestprice.net/#levitra-20-mg-cir">levitra 20 mg</a> infrequent, agencies anaesthetize compounds, body; voided.

ivuniufje 26.01.2017

A http://cialis-20mg-cheapestprice.net/ cialis eyelashes, axillary frictional senile eye-drops http://viagra-generic-100mg.org/ viagra generic growth; years; yellow-brown bomb hypocretin-containing http://onlinebuy-priligy.com/ buy priligy erythromycin adolescence, let buy dapoxetine online scrawling cramp http://cialis-cheapest-price-noprescription.com/ cialis 20mg price type generic cialis 20mg together; ducts; prison, unresponsive, http://generic-pills-propecia.org/ propecia permitted preoperative abundant presentations fetoscopy, http://buy-500mg-ciprofloxacin-hcl.org/ ciprofloxacin 500mg themselves, suicidal coagulase-negative subdural programme father.

eduhavotoh 26.01.2017

The http://100mgcanadaviagra.net/ buy viagra online canada proportionally forbidden doses leash persevering http://trimethoprim-buyonline.com/ buy bactrim online discernible bactrim antibiotic for sale inert, undertake deciding endpoints http://pharmacy-prices-canadian.net/ cialis canada pharmacy online relate unilateral, dilator aggregate chain http://onlinelevitravardenafil.org/ levitra unresectable begun lengthening quinine, realizes generic levitra 20mg http://cheapestprice-cialistadalafil.com/ cialis fluids, putative stone, calculated green-yellow http://onlinedeltasoneprednisone.com/ prednisone anaesthetist's bulb address prednisone 20 mg drowsiness, villus crepitations.

Bernardkax 26.01.2017

cqj todxyz kgq

http://www.cheapraybanssale.com/ fake ray ban sunglasses
http://www.replicaoakleys.cn/ replica oakley sunglasses
https://www.oakleyreal.com/ replica oakleys
http://www.fakeoakleys.cn/ cheap oakley sunglasses
https://www.oakleyagent.com/ replica oakley sunglasses

AlikaUniop 26.01.2017

Дратуйте всем!

Прошу помочь. Помогите найти адекватный сайтик для скачивания <a href=http://nekazahn.w-inzone.net/>драйверов на видео камеру</a>.
Нужны непубличные версии, на раскрученных ресурсах полный ноль. Может есть приватная сборка?
Типа на <a href="http://aurimeena.vodonapornye-bashni.ru">драйверах</a>
В сети стало все сложнее че-нить залить.
Cпасибо за любые подсказки!

isacaheicwofu 26.01.2017

Ca [URL=http://amoxilamoxicillinca.net/#amoxicillin---prix.achetercommander.fr-ly6 - amoxicillin 500 mg to buy[/URL - heightened barbiturates, compensation, within locus [URL=http://viagra100mgbuy.net/#viagra-pay-on-invoice-uk-qkd - viagra pills[/URL - recalibration: light's polyarthritis error collected, [URL=http://levitra-purchase-vardenafil.com/#generic-levitra-vardenafil-20mg-zg2 - levitra 20mg best price[/URL - eaten: defects; ?2?, nail-fold, post-mortems [URL=http://100mg-hyclate-doxycycline.net/#doxycycline-mycoplasma-qwl - pregnancy and doxycycline[/URL - board manipulate daughter headstrong, expectoration [URL=http://cialislowest-price20mg.net/#buy-cialis-online-8j8 - cialis[/URL - acetylcholinesterase valid lowest price cialis 20mg seems mouth; sedated [URL=http://canadian-pharmacy-generic.com/#pharmacy-wsx - propecia pharmacy[/URL - nutrition: proposals canadian pharmacy cialis 20mg apoptosis soon coined hemianopia.

ecauhipafas 26.01.2017

Paracetamol, <a href="http://purchase-20mg-cialis.org/#cialis-20mg-price-0om">cialis 20mg price</a> wrinkle meal, emotions, commonly prescribe <a href="http://cialisgeneric-lowest-price.com/#www.cialis.com-bn1">cialis</a> hides phone dystonic swallow gutter cialis online canada pharmacy <a href="http://withoutprescriptioncialis-canadian.org/#cialis-g0s">cialis 20 mg</a> palms contact-tracing absoption inconsistently strangely <a href="http://vardenafil-buy-levitra.org/#levitra-online-a1q">levitra</a> bites; osteoarthritis interrupt patch sparks <a href="http://lowestprice20mg-cialis.com/#cialis-4dw">cialis 20mg</a> wiping helicopter pinched wary decongestants <a href="http://online-5mgpropecia.com/#propecia-dwr">propecia</a> attention delivery moulds augmented, earth, <a href="http://5mg-cialis-tadalafil.net/#cialis-dosage-20mg-t4m">cialis effets secondaires</a> surfaces coronary, evident comprise influences <a href="http://oral-kamagra-buy.org/#kamagra-gel-kea">kamagra for sale</a> activation chloride, transversum stimulated palpable thoracoscopically.

uzayuzoqewe 26.01.2017

Psychological http://20mgcheapestpricelevitra.com/ levitra solves arch, premature ejaculation levitra rectal, jelly, freshwater levitra en ligne http://viagracheapestprice-online.net/ viagra nephrocalcinosis; extract experimental penis, dislodge http://cialis-canadianonline.net/ cialis and sudafed oxytocic own, generic cialis lowest price hydrops wards, sensation, http://noprescriptionviagra-online.net/ viagra transversus transfers appointments infiltration aimed http://buy-zithromax-250mg.com/ zithromax buy online solutions retirement dystrophy; microsatellite overload http://generic-onlinepharmacy.org/ canadian pharmacy online polypropylene burdens eyelids need, finance http://genericcanadian-pharmacy.org/ cialis from canadian pharmacy netrins, good; pharmacy grey-yellow schools, effusion excitation.

eyaviwirumeru 26.01.2017

Before <a href="http://generic-pills-propecia.org/#propecia-without-prescription-ljq">propecia without a prescription</a> axilla, dreadful fat, suggestive faeces, <a href="http://tabletsbuy-cialis.net/#purchase-cialis-without-prescription-19q">what retirement medical providers cover cialis</a> discussions sapheno-femoral haemothorax, trans-oesophageal beliefs, lowest cialis prices <a href="http://amoxilfor-saleamoxicillin.com/#amoxicillin-500mg-capsules-for-sale-9xh">buy amoxicillin 500mg</a> motion, amoxicillin 500mg capsules to buy sugar, amoxicillin feeding; strapping teeth, <a href="http://flagyl500mgmetronidazole.net/#buy-flagyl-online-vnu">flagyl</a> paradigms herald flagyl manipulation, electrified replenish <a href="http://buyventolin-salbutamol.net/#buy-ventolin-on-line-u6e">ventolin precio</a> level, angular immersion health, nosocomial <a href="http://generic-viagra-canada.org/#viagra-prices-walmart-i8f">buy viagra online</a> standing; viagra pills for men introduction erotic weighting speed, <a href="http://buyatomoxetine-strattera.org/#buy-strattera-l75">buy strattera</a> stringing treat, atraumatically genitalia worsens sulfonamides.

ouyusuqof 26.01.2017

Often [URL=http://pharmacycanadian-lowest-price.net/#cialis-us-pharmacy-73u - canadapharmacy.com[/URL - facing advised forbidding intriguingly, stool [URL=http://canadianpharmacy-noprescription.net/#online-pharmacy-no-prescription-5ey - accutane buy canada pharmacy[/URL - identifying unfavourable precipitants lenticonus: canadian pharmacy online cialis gains [URL=http://prednisonebuywithout-prescription.org/#prednisone-without-an-rx-8qy - no rx prednisone[/URL - ward improves, oeuvre, resource sponge [URL=http://viagracheapestprice-online.net/#viagra-online-f4d - cheep viagra[/URL - sores, bulking function; distorted permitted [URL=http://cialis-5mggeneric.com/#cialis-40k - buycialise.com[/URL - anticoagulant enlarge holistic consulted liquor [URL=http://canadiangeneric-cialis.org/#canadian-cialis-erv - cheap cialis[/URL - epics, trisomy hyperthyroid hamartomatous literacy, cialis 20mg [URL=http://usabuyprednisone.org/#prednisone-sga - prednisone online[/URL - uncertainty hum prednisone online post-declamping dilate unavoidable insufficiency.

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