Review Article
Review of Enzymatic Sludge Hydrolysis
| GUO Jin-song* and Xu Yu-feng | |
| Key Laboratory of the Three Gorges Reservoir Region’s Eco-environment, Ministry of Education, Chongqing University, Chongqing 400030, P. R. China | |
| Corresponding Author : | GUO Jin-song Key Laboratory of the Three Gorges Reservoir Region’s Eco-environment Ministry of Education Chongqing University Chongqing 400030, P. R. China E-mail: guo0768@cqu.edu.cn |
| Received October 24, 2011; Accepted November 15, 2011; Published November 17, 2011 | |
| Citation: Guo Js, Xu YF (2011) Review of Enzymatic Sludge Hydrolysis. J Bioremed Biodegrad 2:130. doi: 10.4172/2155-6199.1000130 | |
| Copyright: © 2011 Guo Js, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. | |
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Abstract
Biotechnology is the major process in urban sewage treatment, the operation of which generates a large amount of excess sludge. Treatment of excess sludge has become a major environmental problem. The present article reviews the enzymatic cleavage of activated sludge, which involves the promotion of sludge floc cracking by extracellular enzymes. Appropriate filamentous fungi may have a positive effect on strengthening sewage treatment efficiency and recessive growth reduction. Based on the extracellular enzyme distribution in the sludge flocs, extracellular polymeric substances may be an important factor in inhibiting enzymatic sludge cracking. Furthermore, the key to enhancing the enzymatic activity is by breaking the sludge flocs. Several treatment processes that enhance the enzymatic sludge cleavage are included in this paper.
