摘要
采用高锰酸钾预氧化—混凝—微滤工艺对黄浦江微污染源水进行处理,考察了处理效果。结果表明,该工艺的出水浊度<0.1 NTU,对铁的去除率>97%,对CODMn、UV254、TOC均有较好的去除效果,出水水质可达到《生活饮用水水质卫生规范》的要求。MnO2及其中间产物被膜截留是造成膜污染的主要因素,采用草酸和次氯酸钠进行膜清洗可使膜通量完全恢复。
The combined process of potassium permanganate preoxidation, coagulation and microfiltration was used for treatment of micropolluted source water from Huangpu River, and the treatment effect was investigated. The results demonstrate that this combined process can effectively remove CODMn, UV254 and TOC respectively, with effluent turbidity of less than 0.1 NTU and iron removal efficiency of more than 97%. The treated water quality can meet the requirements of Sanitary Standard for Drinking Water Quality. The membrane interception of MnO2 and its intermediate is the main reason causing the membrane fouling. Oxalic acid and hypochlorite sodium cleaning can restore the membrane flux entirely.
出处
《中国给水排水》
CAS
CSCD
北大核心
2007年第5期97-100,共4页
China Water & Wastewater
关键词
微污染源水
高锰酸钾
预氧化
混凝
微滤
micropolluted source water
potassium permanganate
preoxidation
coagulation
microfiltration
