焦点提醒：溶菌酶预处置对残剩污泥脱水机能的影响 罗璐1,2， 施周1,2， 许仕荣1,2， 周石庆1,2， 李广超1,2， 周先敏1,2（1.湖南年夜学 土木匠程学院，湖南 长沙 410082；2.湖南年夜学 建筑平安与节能教育部重点尝试室，湖南 长沙 410082）

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• English上一篇下一篇PDF下载[1]罗璐,施周,许仕荣,等.溶菌酶预处置对残剩污泥脱水机能的影响[J].中国给水排水,2022,38(3):87-91.　LUOLu,SHIZhou,XUShi-rong,et al.Effect of Lysozyme Pretreatment on Dewatering Performance of Excess Activated Sludge[J].China Water & Wastewater,2022,38(3):87-91.点击复制

  溶菌酶预处置对残剩污泥脱水机能的影响中国给水排水[ISSN:1000-4062/CN:12-1073/TU]卷:第38卷期数:2022年第3期页码:87-91栏目:出书日期:2022-02-01

  Title:

  Effect of Lysozyme Pretreatment on Dewatering Performance of Excess Activated Sludge

  作者:

  罗璐^{1,2， 施周1,2， 许仕荣1,2， 周石庆1,2， 李广超1,2， 周先敏1,2}

  （1.湖南年夜学 土木匠程学院，湖南 长沙 410082；2.湖南年夜学 建筑平安与节能教育部重点尝试室，湖南 长沙 410082）

  Author(s):

  LUO　Lu^{1，2， SHI　Zhou1，2， XU　Shi-rong1，2， ZHOU　Shi-qing1，2， LI　Guang-chao1，2， ZHOU　Xian-min1，2}

  （1. College of Civil Engineering， Hunan University， Changsha 410082， China； 2. Key Laboratory of Building Safety and Energy Efficiency， Hunan University， Changsha 410082， China）

  要害词:

  残剩污泥;溶菌酶;脱水机能;污泥布局

  Keywords:

  excess activated sludge;lysozyme;dewatering performance;sludge structure

  摘要:

  将溶菌酶利用在残剩污泥的预处置，考查了分歧酶投加量对污泥脱水机能的影响，经由过程测定滤饼含水率、污泥比阻、污泥毛细吸水时候（CST）、Zeta电位和污泥上清液中的卵白质和多糖含量，并采取显微镜和扫描电镜不雅测污泥絮体和颗粒布局的转变，同时连系三维荧光光谱阐发，研究原污泥和酶处置后污泥的脱水机能差别。成果注解，适合的溶菌酶投加量可显著改良残剩污泥的脱水机能，与原污泥比拟，当酶投加量为15%时，真空抽滤后的含水率由91.4%降到63.6%，比阻下降了82%，CST下降了65%，Zeta电位从-14.8 mV上升到2.7 mV。溶菌酶对污泥布局的粉碎是其改良污泥脱水机能的主要缘由。

  Abstract:

  The lysozyme was used in the pretreatment of activated sludge, and the effect of lysozyme dosage on sludge dewatering performance was investigated. The moisture content of vacuum filtration sludge cake, sludge filtration resistance, sludge capillary sunction time (CST), Zeta potential and the protein & polysaccharides contents in sludge supernatant were analyzed. Moreover, the change of sludge flocs and granular structure were measured by normal microscope and scanning electron microscope. Based on the three?dimensional fluorescence spectrum, the sludge dewatering performance before and after lysozyme pretreatment was evaluated. The results showed that the appropriate lysozyme dosage could enhance the sludge dewatering performance. When the lysozyme dosage was 15%, the moisture content of vacuum filtration sludge cake decreased from 91.4% to 63.6%, the sludge filtration resistance decreased by 82%, CST decreased by 65%, and the Zeta potential increased from -14.8 mV to 2.7 mV. The results showed that the destruction of sludge structure by lysozyme was an important reason for improving sludge dewatering performance.

  类似文献/References:

  [1]徐志嫱,李瑶,周爱朝,等.污泥热水解进程中磷的释放纪律与影响身分[J].中国给水排水,2018,34(21):24.XU Zhi qiang,LI Yao,ZHOU Ai chao,et al.Phosphate Release and Influencing Factors Analysis during Sludge Thermal Hydrolysis[J].China Water & Wastewater,2018,34(3):24.[2]张彦平,呼瑞琪,李一兵,等.高铁酸盐氧化残剩污泥溶胞减量研究[J].中国给水排水,2020,36(15):59.ZHANG Yan-ping,HU Rui-qi,LI Yi-bing,et al.Lysis and Reduction of Excess Sludge by Ferrate Oxidation[J].China Water & Wastewater,2020,36(3):59.[3]胡德秀,张聪,张艳.超声强化污泥释磷和MAP法磷收受接管优化研究[J].中国给水排水,2020,36(15):65.HU De-xiu,ZHANG Cong,ZHANG Yan.Phosphorus Release from Sludge Enhanced by Ultrasound and Optimization of Phosphorus Recovery by Magnesium Ammonium Phosphate Method[J].China Water & Wastewater,2020,36(3):65.[4]晏习鹏,肖小兰,亓金鹏,等.中试厌氧膜生物反映器对残剩污泥的消化结果[J].中国给水排水,2020,36(19):1.YAN Xi-peng,XIAO Xiao-lan,QI Jin-peng,et al.Digestion of Excess Sludge in a Pilot Anaerobic Membrane Bioreactor[J].China Water & Wastewater,2020,36(3):1.[5]孙洋洋,张雨辰,徐苏云.分歧来历残剩污泥无机质赋存特点和厌氧消化潜能[J].中国给水排水,2021,37(11):17.SUN Yang-yang,ZHANG Yu-chen,XU Su-yun.Characteristics of Organic Matters in Excess Sewage Sludge from Different Sources and Their Anaerobic Digestion Potential[J].China Water & Wastewater,2021,37(3):17.[6]朱赵冉,黄显怀,唐玉朝,等.低速搅拌球磨破解残剩污泥高效释放碳源[J].中国给水排水,2021,37(13):1.ZHU Zhao-ran,HUANG Xian-huai,TANG Yu-chao,et al.High Efficient Release of Carbon Source from Excess Sludge Disintegrated by Low-speed Stirring and Ball-milling[J].China Water & Wastewater,2021,37(3):1.[7]赵博玮,牛宇锟,谢飞,等.残剩污泥碳化裂解液的资本化中试研究[J].中国给水排水,2021,37(19):1.ZHAO Bo-wei,NIU Yu-kun,XIE Fei,et al.Pilot-scale Study on Resource Recycling of Excess Sludge Carbonized Pyrolysis Liquid[J].China Water & Wastewater,2021,37(3):1.[8]窦川川,刘玉玲,赵鹏鹤,等.碱预处置对残剩污泥DOM的溶出特点和平行因子阐发[J].中国给水排水,2021,37(19):14.DOU Chuan-chuan,LIU Yu-ling,ZHAO Peng-he,et al.Effect of Alkaline Pretreatment on DOM Dissolution Characteristics of Excess Sludge and Parallel Factor Analysis[J].China Water & Wastewater,2021,37(3):14.[9]罗锋,彭进湖,张忠祥,等.南边污水处置厂污泥厌氧发酵制取碳源和投加策略[J].中国给水排水,2022,38(3):1.LUO Feng,PENG Jin?hu,ZHANG Zhong-xiang,et al.Preparation of Carbon Source by Anaerobic Fermentation of Sludge in Wastewater Treatment Plant in Southern China and Its Dosing Strategy[J].China Water & Wastewater,2022,38(3):1.[10]刘子娟,王寅义,徐肖甜,等.残剩污泥碱性发酵产酸和脱水机能研究[J].中国给水排水,2022,38(3):92.LIUZi-juan,WANG Yin-yi,XUXiao-tian,et al.Acid Production and Dewatering Performance of Excess Sludge with Alkaline Fermentation[J].China Water & Wastewater,2022,38(3):92.

  更新日期/Last Update:2022-02-01

  
  

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