预氯化处理高藻原水的特性分析  

Analysis on characteristics of prechlorination of algae-laden raw water

作　　者：马华[1] 王振江[2] 贾柏樱[2] 刘志泉[1] 王连旺[2] 

机构地区：[1]哈尔滨工业大学市政与环境工程学院,黑龙江哈尔滨150090 [2]天津市自来水集团有限公司西青分公司,天津300380

出　　处：《供水技术》2007年第4期23-26,共4页Water Technology

摘　　要：对某水厂预氯化前后水样中藻类种类和数量进行了分析,结果表明,预氯化对不同种藻类有不同程度的去除。预氯化对不对称衣藻、水生集胞藻和微小平裂藻的去除率较高,而对厚变浮游角星鼓藻和水华微囊藻去除率较低。这主要取决于氯的氧化性和藻类形态结构。预氯化对叶绿素a有较高的去除率,同时可降低原水中氨氮含量和高锰酸盐指数。Algae species and quantity before and after prechlorination in a water plant were stu-died.Prechlorination of different species has different removal levels.It was found that prechlorination led to a higher removal efficiency of Chamydomonas asymmetrica,Synechocystis aquatilis and Merismopedia tenuissima,but a lower removal efficiency of S.natator var.Crassum and Microcystis flos-aquae.It mainly depends on oxidation of chlorine and morphology structure of algae.It also appears that prechlorination can effectively reduce the concentration of chlorophyll-a、NH3-N and CODMn.

关 键 词：预氯化 藻类 叶绿素A 

分 类 号：TU991.25[建筑科学—市政工程]