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1. It is used to scrape and collect some thing like the organic sludge、 active sludge、 inorganic grit、 chemical sludge, etc which are under the bottom of the tanks; The return flights can also be made use of to collect some things like floating sludge、 rubbish and oil slick on the water surface.
用于刮除沉淀在池底的有机污泥、性污泥、机砂粒、学污泥等;并可利用在水面上的回程刮板收集漂浮在水面上的浮渣、圾及浮油等。
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