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Chemical pretreatment for activated‐carbon adsorption
Organic substances from five different sources were effectively removed from water by coagulation. The effectiveness was related to the dosage of coagulant relative to the amount of organic matter present, the inorganic composition of the water, and the type of organic matter present. The predominant mechanism for removal was the precipitation of insoluble organo–aluminum complexes. Coagulation significantly increased the adsorptive capacity of activated carbon for the remaining organic matter, except when little or no removal of total organic carbon occurred during coagulation. Neither coagulation nor softening preferentially removed either strongly adsorbing or weakly adsorbing fractions of the organic substances studied.
Chemical pretreatment for activated‐carbon adsorption
Organic substances from five different sources were effectively removed from water by coagulation. The effectiveness was related to the dosage of coagulant relative to the amount of organic matter present, the inorganic composition of the water, and the type of organic matter present. The predominant mechanism for removal was the precipitation of insoluble organo–aluminum complexes. Coagulation significantly increased the adsorptive capacity of activated carbon for the remaining organic matter, except when little or no removal of total organic carbon occurred during coagulation. Neither coagulation nor softening preferentially removed either strongly adsorbing or weakly adsorbing fractions of the organic substances studied.
Chemical pretreatment for activated‐carbon adsorption
Randtke, Stephen J. (author) / Jepsen, Christopher P. (author)
Journal ‐ American Water Works Association ; 73 ; 411-419
1981-08-01
9 pages
Article (Journal)
Electronic Resource
English
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