Preparation and Coagulation Performance of Polymeric Aluminum Zinc Ferric (PAZF) from Galvanized Aluminum Slag

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A new inorganic coagulant polymeric aluminum zinc ferric (PAZF) was prepared using a galvanized aluminum slag as the main material. Coagulation performance was evaluated by jar test on printing and dyeing wastewater and landscape water treatment, and the optimum conditions for the two tested water samples were investigated to be coagulant dosage of 70 and 210 mg/L, pH value of 8.0 and 9.0, and settling time of 15 and 20 min. The removal of turbidity, chroma and COD for printing and dyeing wastewater treatment were 93.8%, 83.32% and 62.19% respectively with turbidity, TP and COD removal for landscape water treatment as 86.98%, 82.39% and 86.82%.

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78-81

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June 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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