Pre-Formed Aluminum Hydroxide as an Alternative to Alum for Coagulation

by Shahin Rezania, Univ of North Dakota, United States,

Document Type: Proceeding Paper

Part of: Environmental Engineering


The objective of this research was to conduct a comparison study of the coagulants, alum and pre-formed aluminum hydroxide, for turbidity and color removals in water treatment. By examining the pH and coagulant dosage parameters, a specific pH and coagulant dose were determined where effective color and turbidity removals occured. This optimum operating point was defined for both coagulants after which they were compared and conclusions made.

Subject Headings: Aluminum (chemical) | Coagulation | Water treatment | Comparative studies | Parameters (statistics) | Turbidity | pH

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