Ian C. Watson Fellowship – 2021 Award Recipient
The American Membrane Technology Association (AMTA) is pleased to announce that the 2021 recipient of the Ian C. Watson Fellowship for Membrane Advancement is Ms. Dana Reed of the University of Houston. Reed is an Environmental Engineering graduate student studying Covalent Organic Framework Nanofiltration Membranes as a Platform for Development of a Simplified Predictive Donnan […]
Benefits of Operating with the New Thin-Membrane Technology in a Municipal Drinking Water RO
Mount Pleasant Waterworks (MPW) is currently operating the first municipal drinking water RO system using a new, thin membrane technology. The new technology increases the amount of active membrane area that can be manufactured in the standard spiral wound element. Mount Pleasant Water District is the first municipal district to replace conventional RO spirals with […]
Benefits of Operating with the New Thin-Membrane Technology in a Municipal Drinking Water RO
Mount Pleasant Waterworks (MPW) is currently operating the first municipal drinking water RO system using a new, thin membrane technology. The new technology increases the amount of active membrane area that can be manufactured in the standard spiral wound element. Mount Pleasant Water District is the first municipal district to replace conventional RO spirals with […]
Repair and Rehabilitation of Twenty-Year-Old NF Plant Trial and Tribulation
The Deep Aquifer Treatment System (DATS) is an 8-mgd nanofiltration (NF) plant owned and operated by the Irvine Ranch Water District (IRWD) located in Santa Ana, California, that was put online in February 2002 and has successfully operated in the removal of natural organic color causing compounds utilizing organic selective membranes. The facility was constructed […]
The Influence of Complex Ions in High Recovery and Brine Concentrator Saturation Calculations
As RO systems are pushed to increasingly higher recoveries, the concentration of salts in solution increases exponentially. This drastic increase in salt concentration demands more complex scaling calculations for proper system operation. One major factor in high salinity RO concentrates is the influence of complex ions on ionic equilibria. Complex ions play a major role […]
The Influence of Complex Ions in High Recovery and Brine Concentrator Saturation Calculations
As RO systems are pushed to increasingly higher recoveries, the concentration of salts in solution increases exponentially. This drastic increase in salt concentration demands more complex scaling calculations for proper system operation. One major factor in high salinity RO concentrates is the influence of complex ions on ionic equilibria. Complex ions play a major role […]
Highly Improve RO Pre-Treatment Performance by Reducing Membrane Fouling and Associated Cost Using Activated Glass Filter Media (AFM) as Replacement for Sand
An Approach to Membrane Filtration Cleaning Explored Through Three Case Studies
Poor performance from membrane filtration plants causes higher operating costs and can limit production. Performance issues generally can be classified as either fouling or fiber breaks. Fouling is a pervasive issue in membrane filtration impacting all facilities at some level. Fouling left unchecked compounds into irreversible damage to the membrane which cannot be removed by […]
An Approach to Membrane Filtration Cleaning Explored Through Three Case Studies
Poor performance from membrane filtration plants causes higher operating costs and can limit production. Performance issues generally can be classified as either fouling or fiber breaks. Fouling is a pervasive issue in membrane filtration impacting all facilities at some level. Fouling left unchecked compounds into irreversible damage to the membrane which cannot be removed by […]
Pioneering Demonstration of Pathogen Log Reduction Values Via Turbidity Monitoring in a Full-Scale Membrane Bioreactor
Analysis turnaround times are at least 24 hours for indicator microorganisms and may be weeks or months for pathogenic protozoa and viruses. These turnaround times are not sufficient to verify water quality, with respect to distribution times of water in water reuse schemes. Hazard and critical control point (CCP) frameworks are incorporated to ensure that […]
