The waste water from pulping of wheat straw was treated by using poly aluminum chloride (PAC), polymerized ferrous sulfate (PFS) and organic coagulant AIDS together.
研究采用聚铝和聚铁作絮凝剂，并加入有机助凝剂，联合作用处理麦草爆破制浆废水的混凝效果。
The present situation on the treatment of various smelting waste slag of non-ferrous metal industry in Chine are discussed briefly.
本文扼要讨论了我国有色金属工业中各种冶炼废渣处理的现状。
Non-ferrous metals are widely used in the environmental protection industry in the sludge, waste transportation, mining mineral processing industries.
广泛应用于有色金属环保产业中的污泥，废渣输送，矿山选矿等行业。
Ferrous sulphate is a wide used product of chemical industry, which was produced with waste iron as raw material in the past so that its cost was higher.
硫酸亚铁是一种用途广泛的化工产品，过去系采用废铁作原料进行生产，但成本较高。
Ferrous sulphate is a wide used product of chemical industry, which was produced with waste iron as raw material in the past so that its cost was higher.
硫酸亚铁是一种用途广泛的化工产品，过去系采用废铁作原料进行生产，但成本较高。
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