Bioinspired Hypochlorite-Resistant Reverse Osmosis Membranes
Inspired by natural, biological systems, this work seeks to develop hypochlorite-resistant reverse osmosis (RO) membranes. Such membranes would be protected from the irreversible damage typically caused by reactive chlorine species, […]
Optimizing Organics Removal from Surface Water in a Coagulation / Ultrafiltration System
This paper describes how coagulant dose in an ultrafiltration system can be automatically adjusted by means of inline UV monitoring. In this way chemical consumption is minimized while ensuring an […]
Improving MF/UF Membrane Operations and Troubleshooting with 4 Easy Steps
The paper presents suggestions for improving operations of MF/UF membrane-based treatment plants based on the author?s 35 years of experience with the goals of making the operator?s work life easier, […]
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 […]
Where Additive Manufacturing Meets Membrane Technology: Opportunities for Printing Thin Film Composite Membranes
We will present on the value proposition of “printed” membrane materials for desalination applications. In particular, we will focus on the polyamide TFC membrane (RO) that can be printed using […]
Removal of Contaminants of Emerging Concern by Thin Film Nanocomposite Reverse Osmosis Membranes
Contaminants of emerging concern (CECs) are believed to be detrimental to aquatic wildlife health and pose a human health risk. Existing conventional water treatment plants are not designed to remove […]
High Rejection Specialty Acid Stable NF (ASNF) Membrane and High Temperature NF for Sulfate Removal in Chlor-alkali Processes
Our Specialty Membrane product line consists of elements with a distinct membrane construction, specializing in unique industrial application needs. The Specialty Membrane Elements helps: to maximize recovery and separation of […]
NF Design and Operation at 98% Recovery – Two Years of Operation and CIP Results
The City of Signal Hill’s nanofiltration plant was designed and built primarily for color removal and some total dissolved solids reduction. The plant was successfully built and started up over […]
Side by Side Comparison of 400ft2 and 440ft2 Membranes in a High Fouling Environment
The Sweetwater Authority owns and operates a 10 mgd groundwater desalter in Chula Vista,CA. The facility has a unique characteristic with three reverse osmosis trains operating with four hundred square […]
Anti-Adhesion and Anti-Fouling Coatings of Feed Spacer
In this work, a new approach for the anti-biofouling modification of the feed spacer surface has been proposed. Hydrophilic and zwitterionic sulfobetaine methacrylate-based coatings were generated by the combination of […]
