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Ultrafiltration of Lake Water: Effect of Pretreatment on the Partitioning of Organics, THMFP, and Flux
Pretreatment processes consisting of various combinations of coagulation‐flocculation and powdered activated carbon (PAC) adsorption were evaluated for use in ultrafiltration (UF) of a lake water. Permeate quality was judged on the basis of the removal of nonpurgeable organic carbon (NPOC), ultraviolet‐light‐absorbing compounds, turbidity, and trihalomethane (THM) precursors. The development of permeate flux and the flux recovery after backwash were also monitored and modeled with the series resistance model. It was shown that for ultrafiltration to be effective in removing NPOC and THM precursors, pretreatment with PAC is required. Coagulation treatment before UF also results in the removal of more organic matter than by UF alone but appears to be more important in conditioning the filter cake and enhancing flux.
Ultrafiltration of Lake Water: Effect of Pretreatment on the Partitioning of Organics, THMFP, and Flux
Pretreatment processes consisting of various combinations of coagulation‐flocculation and powdered activated carbon (PAC) adsorption were evaluated for use in ultrafiltration (UF) of a lake water. Permeate quality was judged on the basis of the removal of nonpurgeable organic carbon (NPOC), ultraviolet‐light‐absorbing compounds, turbidity, and trihalomethane (THM) precursors. The development of permeate flux and the flux recovery after backwash were also monitored and modeled with the series resistance model. It was shown that for ultrafiltration to be effective in removing NPOC and THM precursors, pretreatment with PAC is required. Coagulation treatment before UF also results in the removal of more organic matter than by UF alone but appears to be more important in conditioning the filter cake and enhancing flux.
Ultrafiltration of Lake Water: Effect of Pretreatment on the Partitioning of Organics, THMFP, and Flux
Laîné, Jean‐Michel (author) / Clark, Mark M. (author) / Mallevialle, Joël (author)
Journal ‐ American Water Works Association ; 82 ; 82-87
1990-12-01
6 pages
Article (Journal)
Electronic Resource
English
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