Membrane filtration of wastewater effluents for reuse: effluent organic matter rejection and fouling.
The reuse of treated wastewater to augment natural drinking water supplies is receiving serious consideration. Treatment of secondary and tertiary effluent by membrane filtration was investigated by assessing nanofiltration (NF) membrane and ultrafiltration (UF) membranes in bench-scale experiments. It was found that secondary and tertiary effluent contained high concentration of effluent organic matter (EfOM), contributing EfOM-related fouling. Flux decline and EfOM rejection tests were evaluated, using a dead-end stirred cell filtration unit. Surface charge and molecular weight cut-off (MWCO) of membranes were significant factors in membrane performance including permeability and EfOM-rejection.
Jarusutthirak
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University of Colorado at Boulder, Boulder, CO 80309, USA.
Amy
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D003247:Conservation of Natural Resources / Q000379:methods*; D005618:Fresh Water / Q000737:chemistry; D008851:Micropore Filters; D008970:Molecular Weight; D009930:Organic Chemicals / Q000032:analysis / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D055672:Static Electricity; D013997:Time Factors; D014462:Ultrafiltration / Q000295:instrumentation* / Q000379:methods*; D014877:Water Pollution, Chemical / Q000032:analysis; D018508:Water Purification / Q000295:instrumentation* / Q000379:methods*; D014881:Water Supply / Q000592:standards
D009930:Organic Chemicals