超声预处理对高藻水源水的强化处理效能  

Enhanced Performance of Ultrasonic Pretreatment of High-algae Source Water

作　　者：侯婉宁[1] 刘成[1] 盛誉[1,2] 陈卫[1] 陈彬[1] 

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,江苏南京210098 [2]南京市市政设计研究院有限责任公司,江苏南京210098

出　　处：《中国给水排水》2012年第21期54-57,共4页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07403-001);国家自然科学基金资助项目(50908073)

摘　　要：利用规模为3 m3/h的中试,研究了超声预处理对太湖高藻水的强化处理效能,并分析了各工艺单元出水的微囊藻毒素、土臭素、二甲基异冰片及有机物含量的变化情况。结果表明,超声预处理仅对藻类含量高于1 500×104个/L的水源水具有明显的强化处理效能,而对冬季低藻水源水的处理则有一定的弱化作用;适当的超声预处理不会造成诸如微囊藻毒素、土臭素、二甲基异冰片等藻类代谢产物的含量明显增加,但其对上述物质的去除也没有明显的强化作用,所以要确保高藻期水源水处理满足要求,需辅以其他必要的处理措施。The effect of ultrasonic pretreatment of high-algae raw water from Taihu Lake was investigated in pilot-scale experiments of 3 m3/h. The contents of microcystin-LR, geosmin, 2-MIB and organics were analyzed. The results showed that uhrasonie pretreatment could enhance the removal effects of coagulation and sedimentation when the content of algae in raw water was higher than 1 500× 10^4 ind./L while reduce the treatment efficiency of low-algae raw water in winter. Proper ultrasonic pretreatment could not increase the concentrations of microcystin-LR, geosmin and 2-MIB in the water significantly, and also could not enhance the removal of these matters significantly. Therefore, other technologies that could remove the above matters effectively should be used to ensure the safety of the effluent from the combined process.

关 键 词：超声 预处理 高藻水 微囊藻毒素 土臭素 二甲基异冰片 

分 类 号：TU991.2[建筑科学—市政工程]