Enzymatic Treatment Effects on Waste Activated Sludge from Pulp and Paper Industry

Kai Zhang; Chao Jun Wu; Jia Chuan Chen; Gui Hua Yang

doi:10.4028/www.scientific.net/AMR.610-613.20

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 610-613Enzymatic Treatment Effects on Waste Activated...

Enzymatic Treatment Effects on Waste Activated Sludge from Pulp and Paper Industry

Abstract:

Sludge dewatering is a key part of sludge disposal since it can greatly reduce the volume of sludge and thus improve the treatment effect for handling and disposing. This study investigated the potential beneﬁts of enzymatic pretreatment on activated sludge dewatering with four kinds of enzyme. Capillary suction time (CST) and the solid content after centrifugationwere used to evaluate sludge dewatering. A compression test of paper sludge obtained after treatment was carried out. Besides, some basic properties of activated sludge such as solid content, organic material content, ash content,MLSS,SV30,SVI.The results showed that enzyme additions did not enhanc the dewaterability of the biosolids samples ,but this positively affected ﬁlterability of the samples in the compression test. According to these results,enzyme product addition for biosolids samples seems a promising new method of enhancing the performance of mechanical dewatering units in the future.

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Advanced Materials Research (Volumes 610-613)

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20-24

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https://doi.org/10.4028/www.scientific.net/AMR.610-613.20

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Online since:

December 2012

Authors:

Kai Zhang, Chao Jun Wu, Jia Chuan Chen, Gui Hua Yang

Keywords:

Activated Sludge, CST, Dewaterability, Enzyme, Pulp and Paper Industry

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