... pipe,outlet pipe,sludge tank and scraper system etc.Releaser set in the central of air flotation machine, it is the ... form diameter 20-50UM microbubbles, it adhere to flocculating constituent in sewage, thus reduce the flocculating constituent proportion and ascend, ... bottom. The tank body equip with sludge tank, the scraper set in the sludge tank, the scraper rotation constant, continuous scrape the ...