MBR-NF双膜法去除污水中TrOCs的特性  

A Full-scale MBR-NF hybrid System for the Removal of TrOCs

作　　者：俞开昌[1] 

机构地区：[1]北京碧水源科技股份有限公司,北京市102206

出　　处：《有色冶金设计与研究》2018年第1期5-8,共4页Nonferrous Metals Engineering & Research

基　　金：国家水体污染控制与治理重大专项(2014ZX07216-001)

摘　　要：近年来,痕量有机物(TrOCs)对环境生态以及人类健康的影响越来越受到关注,污水处理厂被认为是TrOCs的主要来源之一。本文测定了MBR-NF双膜法对城市污水中TrOCs的去除效果。结果表明,MBR-NF对TrOCs具有良好的去除效果,综合去除率达86%,双膜之间强强联合,优势互补、劣势互消,MBR对疏水性、非离子型TrOCs有较高的去除率,NF则对离子型TrOCs有较高的去除率。In recent years, the effects of trace organic compounds （TrOCs） on environmental ecology and human health haveattracted more and more attention.A lot of these TrOCsare from Wastewater sources.A full-scale MBR-NF hybrid system was carriedout to investigate the removal characteristics of TrOCs. TrOCs could be highly removed in the integrated MBR -NF system witharetention rate of 86%. There are complementarities between MBR and NF filtration for high -quality permeate with an enhancedremoval of TrOCs. MBR can offer an enhanced removal efficiency for neutral and hydrophobic trace organics. The negatively chargedcompounds could be rejected effectively by the NF membrane with negative charge because of Donnan exclusion.

关 键 词：痕量有机物 MBR-NF双膜法 酸电离常数 

分 类 号：X703[环境科学与工程—环境工程]