好氧、厌氧/好氧交替和厌氧条件对碱减量废水处理效果研究  

Study on the Effect of Aerobic, Anaerobic/Aerobic Alternation and Anaerobic Conditions on Alkaliminimization Wastewater Bio-treatment

作　　者：杨波[1,2] 卫瑞红 徐辉 刘艳彪[1,2] 李方 陈惠[1] YANG Bo;WEI Ruihong;XU Hui;LIU Yanbiao;LI Fang;CHEN Hui(College of Environmental Science and Engineering,Donghua University;State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry,Shanghai 201620,China)

机构地区：[1]东华大学环境科学与工程学院 [2]国家环境保护纺织工业污染防治工程技术中心,上海201620

出　　处：《水处理技术》2022年第1期126-129,共4页Technology of Water Treatment

基　　金：上海市科委基金(19DZ1204903)。

摘　　要：以聚酯纤维碱减量废水为研究对象,利用活性污泥法对比在好氧、厌氧/好氧交替和厌氧条件下对碱减量废水的处理效果。结果表明,好氧条件下碱减量废水降解效果最佳,运行72 h时COD和UV_(254)的去除率分别为97%和99%;厌氧/好氧交替条件次之,COD和UV_(254)的去除率分别为80%和81%,厌氧条件下废水降解效率最低,COD和UV_(254)的去除率分别为33%和4%。凝胶渗透色谱法分析表明,三种条件下2630~3069 Da范围内的大分子聚合物均能被有效降解;膜过滤法分析表明,分子量大于600 Da的芳香族类物质在三种条件下均不能被完全降解。The biodegradation of alkali-minimization wastewater was investigated using the activated sludge treatment method,including aerobic,anaerobic/aerobic alternative and anaerobic processes.The results showed that the degradation efficiency of alkali-minimization wastewater was the highest under aerobic conditions.At 72 h,the removal rates of COD and UV_(254) were 97%and 99%under aerobic,followed by the anaerobic/aerobic conditions of 80%and 81%,and anaerobic condition was the lowest of 33%and 4%,respectively.Gel permeation chromatography and filtration membrane method were used to determine molecular weight distribution of the polyester oligomer within wastewater.The polymer in the range of 2630~3069 Da could be effectively degraded under three conditions.

关 键 词：碱减量废水 生物降解 分子量 凝胶色谱法 

分 类 号：TQ031.7[化学工程] X703.1[环境科学与工程—环境工程]