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本文从三方面提供可能应用于解决管道中贻贝堵塞问题的办法: (1)砂滤法:在海水进入水管前用砂将贻贝幼虫滤去,凡颗粒小于40号筛的砂,厚度在3厘米以上,65微米的贻贝卵或幼虫即不能滤过。 (2)用三氧化二砷杀死巳附着的贻贝成体,优点是贻贝不能发觉,施毒时间短而毒效大,用浓度400—100p.p.m.时20分钟至2小时即可杀死。 (3)用漂白粉使贻贝的附着足丝溶解而将其从水管中冲出的办法,含有效氯为38.6％的漂白粉1％溶液在10分钟内即可使足丝溶解,贻贝脱落。
This paper provides three ways that may be applied to solve the problem of blockage of mussels in the pipeline: (1) Sand filtration method: the mussels larvae are filtered off with sand before the water enters the water pipe. Where the sand is smaller than the 40th sieve, the thickness Mussel eggs or larvae that are more than 3 cm long and 65 μm can not be filtered. (2) Arsenic trioxide is used to kill mussels that have adhered to the body. The advantage is that mussels can not be detected, the poisoning time is short and the toxicity is high. When the concentration is 400-100p.p.m., it can be killed from 20 minutes to 2 hours. (3) Bleaching powder to make the mussel attached to the foot silk dissolved and washed out from the water way, containing chlorine content of 38.6% bleach 1% solution in 10 minutes to make the foot silk dissolved, the mussels shed.