2012•China Water & WastewaterRequires access

Design and Commissioning of Sludge Anaerobic Digestion System in Bailonggang Wastewater Treatment Plant

Shao Qin

Abstract

Bailonggang sludge treatment project treats the sludge produced by Bailonggang WWTP with the wastewater treatment capacity of 200×104 m3/d.This project adopts sludge treatment processes of sludge thickening,mesophilic anaerobic digestion,sludge dewatering and sludge drying.Biogas produced by sludge digestion firstly is used to heat the sludge in digestion tank,and the excess part is used as an energy source to dry the dewatered sludge.The waste energy from dryer condensed vapors is recovered to heat the sludge digestion system.The design parameters,processes characteristics and commissioning of sludge anaerobic digestion in Bailonggang WWTP are introduced to provide some reference for the designers.

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Key concepts: Anaerobic digestion, Waste management, Sewage sludge treatment, Dewatering, Biogas, Sewage treatment, Sewage sludge, Mesophile