城市污水厂二级处理出水次氯酸钠消毒试验研究  

RESEARCH ON SODIUM HYPOCHLORITE DISINFECTION TO SECONDARY EFFLUENT FROM WWTP

作　　者：李振华[1] 

机构地区：[1]华中农业大学资源与环境学院环境科学与工程系,湖北武汉430070

出　　处：《水处理技术》2011年第5期110-112,116,共4页Technology of Water Treatment

基　　金：国家高技术研究发展计划(863)项目(2005AA601010-01);华中农业大学自主创新基金(博士科研启动)项目(52204-10195)

摘　　要：应用次氯酸钠对城市污水厂二级生物处理出水进行了消毒试验,并与液氯和紫外光消毒进行了成本比较。结果表明,次氯酸钠有较好的消毒效果,可确保消毒后出水粪大肠菌群控制在104 L-1以下,达到GB 18918-2002的一级B标准的要求,并具有一定氧化除臭、脱色等作用;消毒成本与液氯消毒相当,但远低于紫外光消毒。Sodium hypochlorite was used to disinfect effluent of secondary bio-treatment from wastewater treatment plant.Sodium hypochlorite showed effective disinfection.It was capable to control steadily fecal coliform number under 104 L-1 in the disinfected effluent,which can reach the I-B criteria specified in discharge standard of pollutants for municipal wastewater treatment plant（GB 2002-18918）.Meanwhile,sodium hypochlorite also can remove odor and color synchronously in the disinfection process.And the disinfection cost of sodium hypochlorite was as much as liquid chlorine,or much less than ultraviolet radiation.

关 键 词：次氯酸钠 消毒 二沉池出水 粪大肠菌群 

分 类 号：X703.1[环境科学与工程—环境工程]