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ADSORPTION OF PHOSPHATE BY RIVER PARTICULATE MATTER1
Authors:Wun-Cheng Wang
Abstract:ABSTRACT: The adsorption of phosphate on particulate matter from the Illinois and Spoon Rivers was investigated. Adsoprtion reached equilibrium after 5 to 6 days and adsorption isotherms were linear for both constant and varying amounts of particulate matter. Adsorption was maximum at pH 8.3 – 8.4 and minimum at 6.0. Rates of adsorption were influenced by the equilibrium concentration of phosphate-P and were essentially the same for the Illinois and Spoon Rivers. However, the quantity of phosphate-P adsorbed per unit weight of particulate matter differed for the two streams with that in the Illinois River exhibiting an adsorption capacity 7 times that of the Spoon River.
Keywords:suspended solids  particulate water  phosphate adsorption  adsorption kinetics and isotherm
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