Separation of Organics and Salts with Ion-Exchange Membranes: Effect of Matrix and Organics
Ion-exchange membranes can be used in different applications and sectors, from seawater desalination to selective separation in industrial water treatment. However, the transport of organics, and potential contamination of produced […]
Evaluating Management and Disposal of CECs in Water Reuse Projects
Recycled water projects that include some form of potable reuse are becoming more common in the water industry. They are being built to help alleviate water shortages throughout the world […]
Can MBR Replace MF/UF In The Full Advanced Treatment Train For Potable Reuse?
This paper discusses the pathogen removal by several different MBR systems with varying membrane materials, pore sizes and membrane geometries. Impact of membrane breach on passage of pathogens in MBR […]
Using On-Line Fluorescence Monitoring To Demonstrate Pathogen Removal Credits For NF And RO In Direct Potable Reuse Schemes
On-line integrity monitoring of NF and RO membranes for demonstrating pathogen removal using the Nalco TRASAR(TM) fluorescently-tagged antiscalant was evaluated at pilot scale. The results showed that 2.5- and 3-log […]
Impact of organic matter on fouling propensity of a new ultrafiltration membrane with low adhesive surface – a study based on 10 different waters
Ultrafiltration (UF) membranes are widely used to treat surface water due to their capacity to remove colloids, particles, pathogens and virus. Today, they are also applied for reverse osmosis pre-treatment […]
Carlsbad Water Recycling Facility Expansion: Design, Permitting, Startup, and Operations
The Carlsbad Water Recycling Facility (CWRF) is owned by the Carlsbad Municipal Water District (CMWD) and operated and maintained by Encina Wastewater Authority. Located in Carlsbad, CA, the CWRF treats […]
Challenges in Understanding Membrane Fouling and Cleaning
Membrane fouling is ubiquitous and has a significant impact on the operation of membrane plants. Although the impact of fouling may be mitigated via the modification of pretreatment processes, inefficient […]
The Effect of IN-SITU Silver Nanoparticle Coating Onto UF and RO Membranes For Biofouling Control to Water Permeability
Biofouling remains one of the greatest challenges to the water industry to date. Among the many strategies practiced by the water industry, an effective pretreatment system with cleaning protocol (Clean-in-Place, […]
Long-Term Pilot Testing of Membrane Filtration for Ultra-Low Tertiary Phosphorus Removal at Spokane
The City of Spokane, Washington is implementing tertiary membrane filtration at their Riverside Park Water Reclamation Facility, The primary objective of the tertiary membrane system is to produce effluent with […]
Evaluation Of An RO Based Advanced Water Treatment Train To Augment The City Of Santa Monica’s Potable Water Supply
This paper will discuss performance of various RO membranes tested as part of the challenge testing for various contaminants, performance of various antiscalants and membrane evaluation components of the over […]
