深度处理对饮用水生物稳定性的影响  

Effect of Advanced Treatment on Biological Stability of Drinking Water

作　　者：李帅[1] 鹿长青 林惠荣[1] 张胜华[1] 

机构地区：[1]中国科学院城市环境研究所,福建厦门361021 [2]合肥工业大学土木与水利工程学院,安徽合肥230009

出　　处：《净水技术》2015年第4期31-35,46,共6页Water Purification Technology

基　　金：国家自然科学基金项目(51108440&31300109);厦门市科技计划项目(3502Z20132013)

摘　　要：给水系统中细菌再生长是自来水管网水质恶化的主要原因之一,水中可同化有机碳(AOC)被认为是影响细菌再生长的主要因素。饮用水常规的处理工艺仅能去除约20%的AOC,不过生物预处理、臭氧—生物活性炭、纳滤可以有效去除AOC,从而提高饮用水生物稳定性。在保证水中消毒剂余量的前提下,常规处理结合深度处理去除AOC是控制细菌再生长的有效方式。Bacterial regrowth in water supply system is one of main reasons causing water quality deterioration in pipeline, and assimilable organic carbon （AOC） is the key factor of bacterial regrowth. The conventional treatment can only remove about 20% AOC. However, the advanced technologies such as biological pretreatment, O3- BAC and nano-membrane filtration, can remove AOC effectively and improve biological stability in drinking water. The combined processes of conventional treatment and these advanced ones are often applied in full-scale water purification facilities to remove AOC and control the bacterial regrowth with the premise of sufficient disinfectant residues.

关 键 词：深度处理 生物稳定性 可同化有机碳(AOC) 生物预处理 臭氧-生物活性炭 膜过滤 

分 类 号：TU991[建筑科学—市政工程]