Screening of Coagulant for Washing Wastewater Treatment

• DOI: 10.4028/www.scientific.net/amr.1092-1093.972
• Publication Date: 2015-03-09T09:02:49Z
• Authors: Jing Yang
• Keywords: Alum; Polyacrylamide

According to the problems exist in cyclic utilization of washing wastewater, coagulation tests utilizing ferric trichloride (FeCl3), alums, poly aluminium chloride (PAC) and polyacrylamide (PAM) are studied, respectively. Experimental results show that PAC was much better than other coagulants removal LAS chroma as a single coagulant. Cast 2.5mL PAC(10%) into quantitative rate reach 82.5% 87.8%, When mix every two kinds coagulants, maintaining same total amount coagulant 2.5mL, cast1.0mL 1.5mL alum (10%) wastewater ,the 84.1% 90.0%,