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Paper Sludge Conditioning by Using Enzymes and Its Mechanism
  
DOI:10.11980/j.issn.0254-508X.2013.11.008
Key Words:enzyme  activated paper sludge  dewatering  CST  mechanism
Fund Project:本课题得到国家自然科学基金(30972326;31070525)、973计划前期研究专项(2011CB211705)和山东自然科学基金(ZR2010CM065,ZR2011CM011)项目的资助。
Author NameAffiliation
张 凯1,2 1.齐鲁工业大学制浆造纸科学与技术省部共建教育部重点实验室, 山东济南, 2503532.华南理工大学制浆造纸工程国家重点实验室广东广州510640 
申莉红1 1.齐鲁工业大学制浆造纸科学与技术省部共建教育部重点实验室, 山东济南, 250353 
张 林1 1.齐鲁工业大学制浆造纸科学与技术省部共建教育部重点实验室, 山东济南, 250353 
吴朝军1,* 1.齐鲁工业大学制浆造纸科学与技术省部共建教育部重点实验室, 山东济南, 250353 
陈嘉川1,* 1.齐鲁工业大学制浆造纸科学与技术省部共建教育部重点实验室, 山东济南, 250353 
杨桂花1 1.齐鲁工业大学制浆造纸科学与技术省部共建教育部重点实验室, 山东济南, 250353 
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Abstract:Neutral-cellulase or neutral-protease was used to regulate activated sludge of paper industry in this research.After conditioning,dewatering properties of the sludge were detected by equipment of CST, suction filtration and filter pressing. Meanwhile, the composition of EPS and surface morphology of the regulated sludge were detected, then the mechanism of paper sludge conditioning with enzyme was analyzed.The results showed that enzymes degraded protein and polysaccharide of EPS in the sludge,destroyed the structure of EPS, in addition, dispersed sludge particles, increased specific surface area, which affected the dewatering properties of the sludge.
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