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1. Definitions and details on the application of anaerobiosis in sanitation
Methanogenesis is a natural biological process that transforms a complex substrate - which may be composed of "heavy", often insoluble organic molecules - anaerobically, i.e. in an oxygen-deprived environment, into methane (biogas). The most spectacular illustration of this phenomenon is the formation of oil slicks from plant deposits, with natural gas deposits as the ultimate stage.
As a preliminary remark, a distinction should be made between the methanization of solids suspended in water (methanization of sludge from urban or industrial wastewater treatment plants), more appropriately referred to as "sludge digestion", and the methanization of liquids, which concerns materials in solution in said liquids. Although these two technologies involve the same biological reactions and the same bacterial species, they differ...
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Definitions and details on the application of anaerobiosis in sanitation
Anaerobic biochemical processes in liquid anaerobic digestion
Also in our database
Bibliography
Websites
General information site on methanization and biogas (page consulted August 6, 2008) http://www.lebiogaz.info
Regulatory, technological and economic information on biogas and its valorization (page consulted August 6, 2008) http://www.biogaz.atee.fr
Events
Pollutec, the international trade show for environmental equipment, technologies and services, is held every two years in Lyon (even-numbered years). http://www.pollutec.com
Standards and norms
French standards
- Electrical equipment for explosive gas atmospheres – Part 10: Hazardous location classification - NF EN 60079-10 - 08-03
- Explosive atmospheres prevention and protection – Part 1: Basic concepts and methodology - PR NF EN 1127-1 - 06-09
- Water quality – Determination of 33 elements by inductively coupled plasma atomic emission spectroscopy - NF EN ISO 11885 - 1998
Dutch...
Regulations
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Classification of Atex zones
European Directive 1999/92/EC of the European Parliament and of the Council of December 16, 1999, on minimum requirements for improving the safety and health protection of workers potentially at risk from explosive atmospheres (OJEC, January 28, 2000). This directive was transposed into French law by a decree published in the JORF (n° 303 of December...
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Manufacturers – Suppliers – Distributors
Rather than providing a non-exhaustive list of suppliers, which is bound to change rapidly from time to time, we prefer to provide a more universal decision-making aid (see additional technical data section).
Organizations – Federations – Associations
Association Technique Énergie Environnement ATEE...
Statistical and economic data
Given the difficulty of keeping up-to-date information on anaerobic references, you will find below economic data dating from 2002. Only industrial plants larger than 2 to 3 tons COD/day could be identified through published manufacturer data, or by taking into account plants known but not precisely referenced by the manufacturer, or in databases specific to each industry. However, these data show that the...
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