絮凝-氧化处理反渗透浓缩液效果研究  

Study on the Effect of Flocculation-Oxidation Treatment of RO Concentrate

作　　者：乐文彬 张会琴 王子贤[1,2] 杜晨宇 陈红煜 张凤 YUE Wenbin;ZHANG Huiqin;WANG Zixian;DU Chenyu;CHEN Hongyu;ZHANG Feng(School of Civil Architecture and Environment,Hubei University of Technology;Hubei Provincial Key Laboratory of River Lake Ecological Restoration and Algae Utilization,Hubei University of Technology,Wuhan 430068,China)

机构地区：[1]湖北工业大学土木建筑与环境学院 [2]湖北工业大学河湖生态修复与藻类利用湖北省重点实验室,湖北武汉430068

出　　处：《水处理技术》2020年第11期35-40,共6页Technology of Water Treatment

基　　金：国家自然科学基金资助项目(51808202)。

摘　　要：以反渗透(RO)浓缩液为研究对象,采用聚磷硫酸铁(PPFS)混凝、双氧水协助氧化的方法,探讨污染物的去除效果。在单因素实验基础上,采用Box-Behnken实验设计进一步优化处理条件。结果表明,去除COD、TP和DOC的理论优化工艺条件分别为:反应时间45、37、41 min,溶液初始pH为5.00、4.50、4.95,ρ(Fe3+)/ρ(H2O2)为1.15、1.27、1.14。在此条件下,COD、TP、DOC的去除率分别为81.99%、98.05%、40.72%。经过回归分析,模型拟合性良好。在实际操作中,适当放宽工艺条件,COD、TP、DOC去除率误差均在5%以内,对实验结果造成的影响较小。Taking reverse osmosis(RO)concentrate as the research object,the pollutant removal efficiency was discussed by the method of polyphosphate ferric sulfate(PPFS)coagulation and assisted oxidation with hydrogen peroxide.Based on the single-factor experiment,the Box-Behnken test design was used to further optimize the treatment condition.The results showed that,the theoretical optimization process conditions for removing COD,TP and DOC were as follow respectively,reaction time of 45,37 and 41 min,initial pH of 5.00,4.50 and 4.95,ρ(Fe3+)/ρ(H2 O2)of 1.15,1.27 and 1.14.Under this conditions,the removal rates of COD,TP,and DOC were 81.99%,98.05%and 40.72%,respectively.After regression analysis,the model fit was good.In actual operation,the process conditions were appropriately relaxed,and the COD,TP,and DOC removal rate errors were all within 5%,which had little effect on the experimental results.

关 键 词：反渗透浓缩液 混凝 氧化 聚磷硫酸铁 H2O2 响应面优化 

分 类 号：X703.1[环境科学与工程—环境工程]