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膜生物反应器去除废水中阴离子表面活性剂的研究
引用本文:温青,柳红军,李凯峰,杨秀石. 膜生物反应器去除废水中阴离子表面活性剂的研究[J]. 环境科学与管理, 2006, 31(9): 102-105
作者姓名:温青  柳红军  李凯峰  杨秀石
作者单位:哈尔滨工程大学化工学院,黑龙江,哈尔滨,150001
摘    要:阴离子表面活性剂是环境中分布广泛且具有代表性的一类有机污染物.采用分置式膜生物反应器(MBR)进行去除模拟废水中阴离子表面活性荆(LAS)的实验,结果表明:MBR对阴离子表面活性荆的去除率高于90%.同时考察了阴离子表面活性荆生物降解的影响因素,确定其适宜降解条件为:气体流量为0.3m3/h、活性污泥浓度为6948mg/L.初步探讨了降解动力学和降解机理,研究表明对阴离子表面活性剂的去除符合拟一级反应动力学过程,且生物降解对其去除起主要作用.

关 键 词:阴离子表面活性剂  膜生物反应器  生物降解  膜生物反应器  去除废水  阴离子表面活性剂  研究  Membrane Bioreactor  Wastewater  Surfactants  作用  力学过程  一级反应  降解机理  降解动力学  污泥浓度  气体流量  降解条件  影响因素  生物降解  考察  去除率  结果
文章编号:1673-1212(2006)09-0102-04
收稿时间:2006-09-05
修稿时间:2006-09-05

Removal of Anionic Surfactants in Wastewater by Membrane Bioreactor
WEN Qing,LIU Hong-jun,LI Kai-feng,YANG Xiu-shi. Removal of Anionic Surfactants in Wastewater by Membrane Bioreactor[J]. Environmental Science and Management, 2006, 31(9): 102-105
Authors:WEN Qing  LIU Hong-jun  LI Kai-feng  YANG Xiu-shi
Affiliation:1.2.3.4 School of Chemical Engineering, Harbin Engineering University, Harbin 150001, China
Abstract:Anionic surfactant is a kind of most familiar and representational organic contaminations in environment. Using separation membrane bioreactor(MBR)can achieve effective removal of anionic surfactants in simulant wastewater, the result demonstrated that the removal efficiency exceeded 90% . Several factors influencing anionic surfactants biodegradation were investigated, the optimum conditions were confirmed; flux of gas =0. 3m /h, the activated sludge concentration = 6948mg/L. Tests were carried out to study the anionic surfactants removal approaches of MBR, it is concluded that biological effects play a major role in anionic surfactants removal by MBR. Meanwhile, biodegradation kinetics of anionic surfactants was analyzed, it is found that biodegradation of anionic surfactants follows first-order dynamics.
Keywords:anionic surfactant    membrane bioreactor   biodegradation
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