铁粉流化床法处理化纤厂酸性含锌废水

Treatment of Acidic Waste Water Containing Zn^(2+) of Chemical Fiber Plant with Iron Powder Fluid Bed

用铁粉对pH为1～2、含Zn^(2+)在150～240mg/L的化纤厂酸性含Zn^(2+)废水经二步流化床反应器,通空气进行处理,处理后废水经离心分离,回收副产铁黄颜料,排放水含Zn^(2+)小于5mg/L,符合排放标准。

The waste water containing Zn2+ 150-240 mg/1 pH=l-2 of chemical fiber plant was treated with iron powder in two-stage process fluid bed (air being pumped into). After treatment, the waste water was separated by centrifuge. It yielded iron oxid yellow and Zn2+<5mg/l in water.