Long Term Performance Comparison: Side by Side Pressure & Submerged Ultrafiltration Plants Treating Surface Water
The Town of Erie (Town), Colorado operates a water treatment plant with both pressurized and submerged ultrafiltration systems side by side. There are few facilities world-wide that have side by […]
Optimization of Submerged Ultrafiltration Membranes – Kennewick WTP as Case Study
As the City of Kennewick, Washington looks to increase the capacity of the membrane water treatment plant (WTP) to its full master planned capacity of 30 MGD, they have identified […]
Low Dosage Scale Inhibitor Addition for RO and NF Applications
Jupiter Water Utilities (Town) owns and operates a 30 million gallon per day (MGD) drinking water treatment facility comprising of nanofiltration (NF), reverse osmosis (RO), and anion exchange (AX). The […]
Targeting Zeta Potential Value Versus Clarified Turbidity as Preatment to MF/UF
A major drawback of utilizing clarification/sedimentation ahead of low-pressure membranes is the issue of organic polymer addition (clarifier aid). Most membrane suppliers and design engineers restrict the use of this […]
Pretreatment Review for NF and LPRO Membranes: Literature Review and Case Studies
Selection of an appropriate pretreatment process for a nanofiltration (NF) or low-pressure reverse osmosis (LPRO) system is critical to optimizing recovery, water quality, and clean-in-place (CIP) requirements. Key pretreatment considerations […]
Exceeding 90% Recovery with Conventional and Closed-Circuit RO: Results from Parallel Pilot Systems
For inland reverse osmosis (RO) systems, brine disposal is often difficult and costly, and there is significant interest in increasing recovery and reducing brine volumes. The City of Buckeye, AZ […]
Maximizing Potable Water Production at EMWD’s Desalination Complex via CCRO Pilot Testing
The Eastern Municipal Water District (EMWD) currently uses reverse osmosis (RO) at it’s Menifee and Perris I Desalter to produce drinking water from otherwise unusable brackish groundwater. A third RO […]
Brine Minimization Using Closed Circuit Reverse Osmosis (CCRO)
Marine Corps Air Ground Combat Center (MCAGCC) Twentynine Palms is in the Mojave Desert in California and is one of the largest military training areas in the nation. MCAGCC relies […]
Vapor-gap Reverse Osmosis for Desalination and Water Reuse
Thin-film composite polyamide membranes are currently used in reverse osmosis (RO) yet they are inherently limited from their poor rejections towards small uncharged pollutants and easily damaged by chemical oxidants […]
Enhanced Wastewater Reclamation with Carbon Molecular Sieves
The global water crisis demands robust technologies to support reuse of impaired water sources. Direct potable reuse (DPR) has been limited by the poor ability of available technology to completely […]
