高藻水处理方案探讨  

Discussion on the high algae content water treatment

作　　者：陈敏竹 莫建能 卢伟 李芳 

机构地区：[1]昆山市自来水集团有限公司,昆山215300

出　　处：《给水排水》2009年第7期28-32,共5页Water & Wastewater Engineering

摘　　要：采用烧杯试验,探讨混凝剂、粉末活性炭(PAC)、高锰酸钾、高锰酸盐复合剂(PPC)、次氯酸钠以及它们之间联用对藻类和浊度的处理效果。结果表明,当藻类数量低于1×107个/L时,提高混凝剂投加量可有效去除藻类;但当藻类数量较高(1×107～5×107个/L)时,采用预氧化以及PAC吸附与混凝联用的工艺可有效去除藻类。试验还表明,次氯酸钠杀藻能力强,而PPC可有效改善处理水的沉淀性能,因此,两者联用可显著提高除藻效果。Jar tests were employed to study the influences of coagulants, powdered active carbon （PAC）, KMnO4, potassium permanganate composite （PPC）, NaClO, and their combination on the algae and turbidity removal. The results showed that when algae concentration was below 1×10^7 unit/L, increasing coagulant dosage could remove algae effectively; when algae concentration was higher （1×10^7-5×10^7 unit/L）, the combination of pre - oxidation and PAC could get satisfying algae removal effects. The NaClO had strong algae removal ability, PPC could improve the sedimentation effects greatly, and the combination of them could improve the algae removal effects obviously.

关 键 词：高藻 预处理 混凝沉淀 联用技术 次氯酸钠 高锰酸盐复合剂 粉末活性炭 

分 类 号：TU991.2[建筑科学—市政工程] TQ085.4[化学工程]