Transcription of Chapter 16 - Anaerobic Wastewater Treatment
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Chapter 16 - Anaerobic Wastewater Treatment
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.
alcohols, lactic acid, CO 2, H 2, NH 3 and H 2S, as well as new cell material. 3) Acetogenesis (intermediary acid production) where digestion products are converted into acetate, hydrogen (H 2) and CO 2, as well as new cell material. 4) Methanogenesis, where acetate, hydrogen plus carbonate, formate or methanol are converted into
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