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In a study of wastewater reclamation for potable reuse, a multiple treatmentbarrier approach was required to provide safe water as a drinking water source. High-pressuremembranes, including nanofiltration (NF) and/or reverse osmosis (RO)membranes, can play an important role in wastewater reclamation as an effective barrierto pathogenic microorganisms, dissolved organic carbon (DOC) that reacts withdisinfectants to form disinfection byproducts (DBPs), as well as endocrine disruptingcompounds (EDCs) and pharmaceutically-active compounds (PhACs). Recent researchsuggests that effluent organic matter (EfOM) present in wastewater secondary effluent isa constraint to implementing the use of RO and NF membranes due to the significant roleof EfOM in membrane fouling. Soluble microbial products (SMPs) have been found to bea significant fraction of EfOM from biological treatment processes, and their presencecontributes to fouling of high-pressure membranes (Barker et al, 2000). This study focused on the role of the SMP associated with the EfOM from wastewater secondaryeffluents in fouling of high-pressure membranes, i.e., NF and RO membranes. The SMPsource (feed) waters were generated from bench-scale sequencing batch reactors (SBR).A glucose solution was used as carbon/energy source for microorganisms in the activatedsludge system. Fouling of high-pressure membranes by the SMP was investigated. Includes 6 references, tables, figures.

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Edition: Vol. - No. Published: 03/05/2003 Number of Pages: 10File Size: 1 file , 320 KB