Acidification of sludge can dissolve aluminum or iron, and reduce the volume and dry weight of the disposal sludge.
酸化法回收污泥中的混凝剂既能溶解污泥中的铝盐和铁盐，又可以减少后续处置污泥的体积和干污泥的量。
High density sludge process can decrease the volume of sludge to be disposed of by over 90%, therefore considerably reduce the cost of sludge disposal.
高密度污泥水处理工艺可使污泥生成量减少到十分之一左右，极大地减轻了污泥处理的负担；
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