高藻期超滤膜制水中试研究  

Pilot Investigation of Water Production by Ultrafiltration Process during High Algal Period

作　　者：许航[1,2] 陈卫[1,2] 杨金虎[2] 潘少林[2] 赵磊[2] 

机构地区：[1]河海大学浅水湖泊综合治理与资源开发教育部重点实验室,南京210098 [2]河海大学环境学院,南京210098

出　　处：《土木建筑与环境工程》2012年第4期99-104,117,共7页Journal of Civil,Architectural & Environment Engineering

基　　金：国家博士后基金(20100481083);水体污染控制与治理重大科技专项(2011ZX07410-001)

摘　　要：针对太湖水高藻期水质特征,以超滤膜为终端处理技术,前端有混凝-沉淀技术、预氧化技术或吸附技术,形成组合工艺进行中试研究。研究结果表明:混凝-沉淀-超滤膜、高锰酸钾-混凝-沉淀-超滤膜和高锰酸钾-混凝-沉淀-粉末活性碳-超滤膜3组组合工艺出水水质良好,出水浑浊度均低于0.1NTU,藻类数量控制在2.5×104个/L左右,其它检测指标达到生活饮用水卫生标准(GB5749—2006)。高藻水中有机物以疏水性有机物为主,疏水性有机物是造成膜污染的主要因素,有效的超滤膜前段处理技术降低进入膜组件的疏水性有机物,缓解高藻期超滤膜污染。On account of the characteristics of water in Taihu during high algal period,the pilot investigation was conducted with the combination of ultrafiltration membrane with coagulation,pre-oxidation technology or adsorption technology.The results show that the quality of influent water from the three combination processes： coagulation precipitation-ultrafiltration membrane,potassium permanganate-coagulation precipitation-ultrafiltration membrane,potassium permanganate-coagulation precipitation-power activated carbon-ultrafiltration membrane are preferred,with turbidity lower than 0.1 NTU,algae control in the number of 2.5 × 104/L,and other measured targets meet the drinking water standards（GB 5749—2006）.The organic matter of high algal water mainly includes hydrophobic organic compounds which are major factors leading to membrane fouling.The effective pre-treatment before ultrafiltration membrane can prevent hydrophobic organic compounding into the membrane pore,which will effectively ease the membrane fouling during the high algal period.

关 键 词：超滤膜 组合工艺 高藻期 膜污染 

分 类 号：X703[环境科学与工程—环境工程]