EVALUATION MEMBRANE BIOREACTORS AND REVERSE OSMOSIS FOR REMOVAL OF ENDOCRINE DISRUPTING COMPOUNDS, PHARMACEUTICALS, AND PERSONAL CARE PRODUCTS
A pilot-scale MBR/RO process train operated at the Point Loma Wastewater Treatment Plant (PLWTP) was evaluated for the removal of endocrine disrupting compounds (EDCs) and pharmaceuticals and personal care products (PPCPs). Samples were collected in summer and late autumn and analyzed by two laboratories utilizing different methodologies. Most EDC and PPCP compounds were removed through the MBR/RO process, but tri-2-chloroethyl-phosphate (TCEP) was consistently found in the RO permeate and DEET was consistently found in the MBR permeate. Other compounds that were found in the MBR permeate included triclosan and other anti-microbials, oxybenzone, caffeine, ibuprofen and other prescription pharmaceuticals. It still remains to be determined whether the levels at which these compounds are detected in the process permeates have any ecological significance.
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Document Type: Research Article
Publication date: 01 January 2004
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