What is the Real Total Cost of Ownership of a Low-Pressure Membrane Plant for Drinking Water Production? Comparing 3 Materials: PVDF, PES and CTA
A comparison of Ultrafiltration (UF) and Microfiltration (MF) full scale plants in operation greater than 6 years are evaluated for membranes made with PVDF, PES and CTA. Market share, capital […]
Debugging the Plant – Managing Reverse Osmosis Biofouling at a Groundwater Treatment Plant
The Arcadia Water Treatment Plant treats local groundwater to provide up to 10 MGD of treated water as part of the City of Santa Monica?s drinking water supply. The plant […]
Evaluation of cartridge filter performance: Are cartridge filters effective for SWRO desalination plants
Cartridge filter performance at Seawater Reverse Osmosis (SWRO) plants were studied at both open-ocean intake and well intake feed. The well intake showed no improvement in feed for NOM, bacteria […]
Biodegredation of Selected Emerging Organic Micro-pollutants in a Pre-anoxic Membrane Bioreactor
Membrane bioreactors (MBR) is used to tream municipal wastewater. The MBR had good removal rates for substrate and nutrients, COD, NH3-N, emerging organic micro-pollutants. MBR in this study was sequencing […]
Contaminants of Emerging Concern in RO Brine Concentrate from Indirect/Direct Reuse Applications
Findings show that dozens of CECs are present in brine concentrates of reuse reverse osmosis (RO) streams. CECs include hormones, steroids, pesticides, pharmaceuticals, and personal care products. Treatment methods for […]
Evaluation of Hollow-fiber and Spiral-wound Membranes for Sulfate and TOC Control for an Aerated Groundwater
This study investigated the treatment of an aerated groundwater using membrane technology. The raw groundwater contained elevated levels of sulfate and natural organic matter (NOM) which often pose challenges to […]
A Nanofiltration of Membrane for the Removal of Color and Disinfection byproducts
Inverness CA has a potable water issue with high levels of color and DBP from a surface water source. NF was able to reduce the color and DBP at low […]
HAOPs Pretreatment to (Nearly) Eliminate UF Fouling by NOM
Pilot and lab tests were ran to prove effectiveness of HAOPs for removal of Natural Organic Matter (NOM) from surface waters. HAOP can be used as an adsobent in a […]
Moving Fouling Away from Membrane: Microgranular Adsorptive Filtration and Fouling Isolation
Pilot and lab tests were ran to prove effectiveness of HAOPs for removal of Natural Organic Matter (NOM) from surface waters. HAOP can be used as an adsobent in a […]
Membrane Facility Operations and Expansion – Transitions to Accommodate a Utility?s Needs
Pretreatment at a City of Fort Worth TX water treatment plant to a low pressure hollow fiber membrane system used ozone, clarification, and biological anthracite filters. Design, planning and operations […]
