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Review
. 2017 Dec;245(Pt A):1206-1219.
doi: 10.1016/j.biortech.2017.08.179. Epub 2017 Sep 1.

Influence of pretreatment techniques on anaerobic digestion of pulp and paper mill sludge: A review

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Review

Influence of pretreatment techniques on anaerobic digestion of pulp and paper mill sludge: A review

C Veluchamy et al. Bioresour Technol. 2017 Dec.

Abstract

Pulp and paper industry is one of the most polluting, energy and water intensive industries in the world. Produced pulp and paper mill sludge (PPMS) faces a major problem for handling and its management. An anaerobic digestion has become an alternative source. This review provides a detailed summary of anaerobic digestion of PPMS - An overview of the developments and improvement opportunities. This paper explores the different pretreatment methods to enhance biogas production from the PPMS. First, the paper gives an overview of PPMS production, and then it reviews PPMS as a substrate for anaerobic digestion with or without pretreatment. Finally, it discuss the optimal condition and concentration of organic and inorganic compounds required for the anaerobic metabolic activity. Future research should focus on the combination of different pretreatment technologies, relationship between sludge composition, reactor design and its operation, and microbial community dynamics.

Keywords: Anaerobic digestion; Methane; Optimum anaerobic condition; Pretreatment; Pulp and paper mill sludge; Renewable energy.

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