Nov 06, 2013 · As mentioned above, in the semiconductor assembly industry the wastewater treatment system consists of a coagulation-flocculation process in which anionic and cationic polyelectrolytes are used to remove suspended solids, organic matter, and cation content so that the effluent meets the maximum permissible limits Pb 1 ppm, Ni 3.0 ppm, Cu 1.2 ...
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