Optimization and economic evaluation of modified coagulation-flocculation process for enhanced treatment of ceramic-tile industry wastewater.

Enhanced treatment of ceramic-tile industry wastewater was investigated by modified coagulation-flocculation process using combination of poly-aluminum chloride (PAC) with anionic (A), cationic polymer (C) and nonionic polymers. The effects of pH, PAC coagulant dose alone and with polymers dose in various combinations was studied by jar tests. To compare the removal efficiencies of turbidity, total suspended solids (TSS), chemical oxygen demand (COD), and color at different levels, we run multivariate analysis of variance.