Digestion methane

Ana.eroblc Digestion. Methane can be produced from water slurries of biomass by anaerobic digestion in the presence of mixed populations of anaerobes. This process has been used for many years to stabilize municipal sewage sludges for purposes of disposal. Presuming the biomass is all cellulose, the chemistry can be represented in simplified form as follows ... 

Anaerobic digestion Methane gas Shredding, air separation Technology on laboratory scale only... 

Groundwater contaminated with various phenols degraded in a methanogenic aquifer. Similar results were obtained in the laboratory utilizing an anaerobic digester. Methane and carbon dioxide were reported as degradation products (Godsy et al, 1983). 

Nutrition has important effects on the environment as a consequence of the processes of digestion (methane and phosphorus) or a combination of digestion and metabolism (nitrogen). Methane is produced by the fermentation of foods in the gut by microbes, particularly in ruminants, and the decomposition of carbon compoimds in faeces stored as manure. Undigested phosphorus compoimds are excreted in the faeces. Undigested and waste products of the metabohsm of nitrogen compounds are excreted in the faeces and urine and the decomposition of these produces nitrous oxide (N2O). Ammonia in animal wastes is responsible for soil acidification and nutrient enrichment. 

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