饮用水配水管网中硝化作用的最新研究进展  

State-of-the-Art of Nitrification in Drinking Water Distribution Systems

作　　者：赵乐乐[1] 李星[1] 杨艳玲[1] 雒江菡[2] 李圭白[2] 王彩虹[2,3] 

机构地区：[1]北京工业大学建筑工程学院,北京100124 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [3]广东省建筑设计研究院,广东广州510010

出　　处：《中国给水排水》2012年第12期24-28,共5页China Water & Wastewater

基　　金：国家自然科学基金资助项目(51178003);国家水体污染控制与治理科技重大专项(2009ZX07423-004);北京工业大学第9届研究生科技基金资助项目(ykj-2011-5479)

摘　　要：硝化菌已经广泛滋生于氯胺消毒的饮用水配水管网中,随之产生的硝化作用将导致亚硝酸盐积累、加快氯胺消毒剂衰减、大肠杆菌等细菌大量繁殖及管网腐蚀等一系列水质问题。因此,配水管网中的硝化作用已经引起了国内外专家的高度关注。为此,首先介绍了饮用水管网中硝化菌的多样性及分析方法等基础性研究;其次,评价了配水管网中温度、pH值及营养水平等影响硝化作用的因素;最后,针对性提出选择合适的氯胺比、调节pH值和控制营养物水平等抑制硝化作用的措施,并展望控制饮用水配水管网硝化作用的重点研究方向,以期为控制配水管网中的硝化作用提供解决思路。Nitrifying bacteria have widely grown in chloraminated drinking water distribution systems. Consequently, nitrification in chloraminated drinking water distribution systems leads to problems, such as nitrite accumulation, acceleration of chloramine disinfectant decay, reproduction of bacteria like coliform, corrosion of pipes and so on. Therefore, much attention has been paid by global experts. The fundamental studies on diversity of nitrifying bacteria in drinking water systems and monitoring methods were elaborated. The factors affecting nitrification in drinking water systems, such as temperature, pH and nutrient were summarized. The methods of optimizing chloramine dose, adjusting pH, controlling nu- trient level to inhibit nitrification were proposed, and the important research aspects of controlling nitrifi- cation in water distribution systems were prospected to provide a solution for controlling nitrification in drinking water systems.

关 键 词：饮用水 配水管网 氯胺消毒 硝化作用 氨氧化细菌 亚硝酸盐氧化细菌 

分 类 号：TU991[建筑科学—市政工程]