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Comparison of enhanced anaerobic digestion processes in terms of methane production and final sludge hygienization

Name: Comparison of enhanced anaerobic digestion processes in terms of methane production and final sludge hygienization
Keywords: Temperature-phased digestion, E. coli, Biogas, Pretreatments, Somatic coliphages, Waste activated sludge

descriptionPublicationkeyboard_double_arrow_right Conference object 01 Jan 2014 Italy English

Authors: Gianico A; Braguglia; C M; Gallipoli A; Levantesi C; Mininni; G;

handle: 20.500.14243/395853

Comparison of enhanced anaerobic digestion processes in terms of methane production and final sludge hygienization

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Abstract

Sewage sludge processing is a key issue in wastewater treatment plants due to the inefficacy of conventional treatments to produce high quality sludge to be safely used in agriculture. Under this framework, the performances of several enhanced stabilization processes, namely ultrasound-pretreated Mesophilic Anaerobic Digestion (US-MAD), thermophilic anaerobic digestion (TAD), thermal pretreated TAD (TH-TAD) and ultrasound-pretreated inverse Temperature Phased Anaerobic Digestion (iTPAD) have been investigated. The enhanced anaerobic processes resulted in higher specific biogas production and higher destruction of E.coli and Somatic coliphages with respect to conventional MAD process, thus confirming the feasibility of these innovative processes in full-scale implementation perspectives.

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Italy

Related Organizations

National Research Council
Italy

Keywords

Temperature-phased digestion, E. coli, Biogas, Pretreatments, Somatic coliphages, Waste activated sludge

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Energy Research