Chapter 16 - Anaerobic Wastewater Treatment

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16. Anaerobic Wastewater Treatment Jules B. van Lier, Nidal Mahmoud and Grietje Zeeman SUSTAINABILITY IN Wastewater . Treatment . consumed. Accepting that Anaerobic digestion in fact Definition and environmental benefits of merely removes organic pollutants, there are virtually Anaerobic processes few if any serious drawbacks left, even not with respect The fermentation process in which organic material is to the rate of start-up of the system. Figure shows degraded and biogas (composed of mainly methane and the fate of carbon and energy in both aerobic and carbon dioxide) is produced, is referred to as Anaerobic Anaerobic Wastewater Treatment (AnWT) assuming that digestion. Anaerobic digestion processes occur in many the oxidation of 1 kgCOD requires 1 kWh of aeration places where organic material is available and redox energy.

sludge as seed material. no or very little use of chemicals. plain technology with high treatment efficiencies. anaerobic sludge can be stored unfed, reactors can be operated during agricultural campaigns only (e.g. 4 months per year in the sugar industry). excess sludge has a market value. high rate systems facilitate water recycling in

  Technology, Seed