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Full-Text Articles in Engineering
Membrane Fouling In The Nanofiltration Of Landfill Leachate And Its Impact On Trace Contaminant Removal, Dirk Vogel, Bernd Bilitewski, Long Nghiem
Membrane Fouling In The Nanofiltration Of Landfill Leachate And Its Impact On Trace Contaminant Removal, Dirk Vogel, Bernd Bilitewski, Long Nghiem
Faculty of Engineering - Papers (Archive)
Landfilling is the most common municipal solid waste disposal method in Australia. During the decomposition of the deposited waste, leachate is generated mainly due to the seepage of stormwater through the landfill body.
Role Of Electrostatic Interactions In The Retention Of Pharmaceutically Active Contaminants By A Loose Nanofiltration Membrane, Long Nghiem, Andrea Schaefer, Menachem Elimelech
Role Of Electrostatic Interactions In The Retention Of Pharmaceutically Active Contaminants By A Loose Nanofiltration Membrane, Long Nghiem, Andrea Schaefer, Menachem Elimelech
Faculty of Engineering - Papers (Archive)
The role of electrostatic interactions in the separation of pharmaceuticals by a loose nanofiltration (NF) membrane was examined. While retention of the non-ionizable pharmaceutical carbamazepine was relatively independent of the solution chemistry, retention of the ionizable pharmaceuticals sulfamethoxazole and ibuprofen was strongly influenced by the solution pH and ionic strength. This finding is consistent with previous results investigating the effects of solution pH and ionic strength on the retention of proteins and organic acids. Pharmaceutical retention increases dramatically as the compound transforms from a neutral to a negatively charged species when the solution pH increases above its pKa …
Critical Risk Points Of Nanofiltration And Reverse Osmosis Processes In Water Recycling Applications, Long Nghiem, Andrea Schaefer
Critical Risk Points Of Nanofiltration And Reverse Osmosis Processes In Water Recycling Applications, Long Nghiem, Andrea Schaefer
Faculty of Engineering - Papers (Archive)
NF/RO membrane filtration processes have been recognized as an important technology to facilitate water recycling. Those processes are well-proven technologies, which can be used to remove a wide range of contaminants including trace contaminants that are of particular concern in water recycling. However, risk implications in association with brine or concentrate and membrane cleaning wastewater disposal have to date not been adequately understood. This study examines the adsorption and release process of several endocrine-disrupting chemicals (EDCs) during NF/RO filtration processes. Results reported here indicate that the membrane can serve as a large reservoir for EDCs and their release may be …