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污泥浓密设备,虽然主要使用重力沉降式,但最近在实际使用时以使用加压上浮浓密法和离心浓密法来代替。加压上浮浓密法,应该除去在悬浊物上附着的微细气泡,是一种本身假比重轻的浓密上浮的方法。在欧美此法已广泛用于处理废水处理场的剩余污泥。但不能使剩余污泥浓密到3—4％,因而泡沫厚度会产生变化。而对污泥的收集方法,也存在需改进之处。
Sludge thick equipment, although the main use of gravity-settling, but the recent use of the actual use of pressurized floating thick method and centrifugal thick method instead. Pressurized floating thick method, should be removed on the suspended matter attached to the fine bubbles, is a kind of its own false light weight dense floating method. This method has been widely used in Europe and the United States to deal with the remaining sludge waste water treatment plant. But can not make the remaining sludge thick 3-4%, so the bubble thickness will change. The sludge collection methods, there are areas for improvement.