摘要
淡水壳菜依靠足丝附着在管道内壁,并快速大量繁殖,会导致管道、阀门等堵塞。研究了足丝在强酸、强碱、水处理氧化剂中的溶解性能。结果表明:除次氯酸钠外,其他试验药剂都不能溶解淡水壳菜的足丝。导致足丝溶解的有效成分是次氯酸根。水中余氯达到1mg/L的次氯酸钠溶液,可在36h内完全溶解分泌24h后的足丝,127h内完全溶解老化的足丝。因此,可以通过投加次氯酸钠降低足丝的附着能力,从而去除管道中的贝壳。
Limnoperna fortunei can attach to the inner walls of raw water pipe by thread-like byssus and reproduced rapidly, resulting in clogging of pipe and valves. In this work it was researched the solvability of byssus in acids, alkalis and some oxidants for water treatment. The results showed that byssus is insoluble in all the chemicals except sodium hypochlorite. The e{{ective ingredient dissolving byssus is hypochlorite ion. The newer byssus can dissolve in 36 h and 127 h while aging byssus in 24 h and entire aging byssus respectively as residual chlorine is up to 1 mg/L. It is possible to reduce byssus cohesion by sodium hypochlorite so as to remove the mussels in pipes.
出处
《给水排水》
CSCD
北大核心
2006年第3期29-32,共4页
Water & Wastewater Engineering
关键词
原水管道
淡水壳菜
足丝
溶解性
Raw wate pipe
Limnoperna fortunei
Byssus
Solvability
