摘要
供水流程中的摇蚊污染影响水厂生产和自来水水质,S市水厂进行的摇蚊污染特征调查结果表明,污染水厂的摇蚊优势种是花翅摇蚊,水厂孳生的摇蚊来源于进厂原水,摇蚊主要孳生分布在水厂沉淀池。水厂沉淀池形成摇蚊污染的主要原因有:原水的悬浮物和丰富的藻类,沉淀池的温度、溶解氧、pH值,摇蚊幼虫对氯离子和混凝剂浓度的较强耐受性。
Since the Chironomid pollution in city water supply system causes a lot of troubles in water plant and water quality, Chironomid pollution characters in water supply systems in S city are investigated in this paper. The results show that 98% of pollution in water plants is induced by C. Kiiensis, the predominant Chironomid species in Guangdong Province; the Chironomids, which originated from source water rather than periphery of water plant, mainly broods in sedimentation tanks in water plants. The main reasons of Chironomid pollution are as follows： abundant suspended solid and alga in source water; water quality characters in sedimentation tanks, such as temperature, dissolved oxygen, pH, etc. ; and the strong tolerance of Chironomid to chlorine ion and coagulator of water in sedimentations tanks.
出处
《中国农村水利水电》
北大核心
2006年第4期1-2,5,共3页
China Rural Water and Hydropower
基金
国家863专项(No.2002AA601120)子课题。
关键词
供水工程
水质
摇蚊污染
污染特征
water supply project
water quality
Chironomid pollution
characteristics of pollution
