Membrane Facility Award
2025 In recognition of an outstanding water/wastewater facility that incorporates membrane technology, high efficiency and an environmentally conscious approach.
Annual Conference Awards – Best Paper Award
In recognition of outstanding preparation of a technical paper for the AMTA/AWWA Membrane Technology Conference and Exposition.
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, allowing hypochlorite to be used for biofilm prevention and treatment in RO systems.
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 optimal water quality and minimal membrane fouling.
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, lowering operating costs, and facilitating reliable plant performance with stable capacity. Suggestions include: periodic archiving of plant setpoint and performance ?snapshots? to assist locating problems […]
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 owns brackish wells that have trace amounts of arsenic, nitrate, and various metals, and is considering RO treatment for these wells. Stantec performed a pilot […]
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 CECs. Therefore, several advanced treatment methods, including reverse osmosis have been proposed for the removal of CECs.The paper will present two pilot studies. The first […]
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 valuable compounds, minimize overall system CAPEX while reducing environmental footprint, reduce OPEX by lowering overall energy and cleaning chemicals consumption, and meet regulatory requirements. This […]
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 two years ago. After more than one year of operation the plant was cleaned for the first time. This paper will present information on the […]
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 foot membranes and the remaining three trains operating with four hundred and forty square foot membranes. Over the last two years of operation, data has […]
