国内饮用水生物稳定性的调查研究  

Study on Biological Stability of Drinking Water in China

作　　者：王丽花 张晓健[2] 吴红伟[2] 王占生[2] 

机构地区：[1]上海水环境建设有限公司,上海201203 [2]清华大学环境科学与工程系,北京100084

出　　处：《净水技术》2005年第3期45-47,共3页Water Purification Technology

摘　　要：以国内几个大中城市的自来水厂为调查对象,测定了不同水厂各工艺出水中AOC浓度,分析了不同水处理工艺对AOC的去除特性,并对国内饮用水的生物稳定性进行了分析。调查结果表明:1)水源的污染程度对饮用水中AOC浓度有重要影响,原水AOC随着污染程度的增加而增加。2)常规处理工艺对AOC具有一定的去除效果,且去除率随水温的升高而增加。3)活性炭处理对AOC去除率较高,活性炭对AOC的去除包括物理吸附和活性炭上附着的微生物降解两部分。4)水厂工艺出水加氯消毒后,AOC浓度均有较大幅度的增加,因此应该重视开展加氯消毒对管网水质影响的研究,寻求采用科学的消毒方法以控制细菌的生长。5)目前国内大多数饮用水属于生物不稳定饮用水,应在加强水源保护的同时,增加深度处理工艺如活性炭或膜处理来提高饮用水水质。Assimilable organic carbon(AOC)concentrations were measured in six water treatment plants in four large and middle cities.The AOC removal by various unit operation and the biological stability of drinking water in mainland of China were studied.The result showed:1)The pollution extent of raw water has some effect on the AOC concentrations in drinking water proportionally.2)Conventional treatment process can remove some AOC,and the AOC removal efficiency increased with the increase of temperature.3)Activated carbon processes have a high removal efficiency for AOC by adsorption and biodegradation.4)Post-chlorination caused AOC increase to a large extent.5)A vast amount of drinking water shows the characteristics of biological instability,so further treatment technologies such as activated carbon or membrane treatment should be considered while enhancing water resource protection.

关 键 词：生物稳定性 饮用水 国内 深度处理工艺 AOC 污染程度 加氯消毒 水处理工艺 活性炭处理 微生物降解 自来水厂 大中城市 去除特性 调查结果 去除效果 物理吸附 水质影响 消毒方法 水源保护 去除率 浓度 大幅度 不稳定 膜处理 

分 类 号：TU991.2[建筑科学—市政工程] TU991.25