光催化膜生物反应器处理染料废水特性研究  

Study on characteristics of dye wastewater treatment by photocatalytic forward osmosis membrane bioreactor

作　　者：段文松[1] 李婷[1] 吴安安 DUAN Wen-song;LI Ting;WU An-an(College of Ecology and Environment,Anhui Normal University,Wuhu 241000,China)

机构地区：[1]安徽师范大学生态与环境学院,安徽芜湖241000

出　　处：《应用化工》2022年第7期2014-2019,2024,共7页Applied Chemical Industry

基　　金：安徽省教育厅自然科学研究项目(1608085MB45,KJ2020A0078)。

摘　　要：以氯化钠为汲取液,TiO_(2)-紫外光催化技术和正渗透膜生物反应器(FOMBR)协同处理模拟染料废水,研究其对水中污染物的去除率及膜面污染物的分布。结果表明,该反应器缓解了传统FOMBR的通量骤降问题,并保持了较好的有机物去除水平。水通量从5.82 L/(m^(2)·h)缓慢下降至4.39 L/(m^(2)·h);对废水中的COD、总氮、总磷及氨氮的平均去除率分别为99.94%,97.06%,99.54%和97.59%;汲取液中甲基橙平均脱色率为96.70%,总苯胺截留率达85.19%。膜面污染物集中分布在0~38μm,且均随扫描层数的增加呈现出先增后减的趋势,主要污染物为蛋白质和α-D-吡喃多糖,平均荧光强度分别为36.74和44.92。The simulated dye wastewater was treated with sodium chloride solution, TiO_(2)UV catalysis technology and forward osmosis membrane bioreactor, the removal rate of pollutants in water and the distribution of pollutants on membrane surface were investigated.The results showed that the reactor alleviated the problem of flux drop of traditional FOMBR(Forward osmosis membrane bioreactor) and maintained a good level of organic matter removal.The water flux of the reactor decreased slowly from 5.82 L/(m^(2)·h) to 4.39 L/(m^(2)·h) after 360 h of operation.The removal efficiency of COD,total nitrogen, total phosphorus and ammonia nitrogen in the wastewater was significant, and the average removal rate were 99.94%,97.06%,99.54% and 97.59%,respectively.The average decolorization rate of methyl orange in the extract was 96.70%,and the total aniline rejection rate was up to 85.19%.The four kinds of CTA membrane pollutants were concentrated in the range of 0~38 μm, and showed a trend of first increasing and then decreasing with the increase of scanning layers.The main pollutants were protein and α-D-Pyranopolysaccharide in microbial metabolites, and their average fluorescence intensities were 36.74 and 44.92,respectively.

关 键 词：光催化 正渗透膜生物反应器 染料废水 

分 类 号：TQ610.9[化学工程—精细化工]