Citywide Water Curtailment in Newport, OR – The Mystery of a Membrane Fouling That Created an Emergency Situation
The City of Newport, OR (City) operates a 6-million gallon per day (MGD) low pressure membrane water treatment plant (WTP). Starting mid-May 2020, the City experienced a rapid change in […]
Inland Desalination Using Closed-Circuit Reverse Osmosis
Inland desalination faces unique challenges foremost of which is brine disposal. Challenges include salinity management, waste reduction, and operational complexity. Innovative technologies including closed-circuit reverse osmosis (CCRO) may play a […]
Startup of the Grip AWT Facilities
The Albert Robles Center (ARC) of the Water Replenishment District of Southern California’s (WRD’s) Groundwater Reliability Improvement Project (GRIP) is a state of the art advanced water treatment facility (AWT) […]
A Tale of Two Winters: Operational Differences to Increase MBR Capacity in Cold Weather Months
Canton Water Reclamation Facility (Canton) has faced hardships meeting capacity during winter months since beginning operation as a membrane bioreactor (MBR) plant. In an attempt to resolve this issue, Canton […]
Optimized Chemical Pretreatment and Membrane Element Performance at a 10 MGD Nanofiltration Plant
The City of Pompano Beach has a 50 million gallon per day (mgd) water treatment plant that includes a 10 mgd nanofiltration (NF) process. The NF process includes five 2-mgd […]
Anaerobic membrane Bioreactors – Pushing Cross-Flow and Mixed Liquor Concentration to the Limit at a Brewery
Deschutes Brewery, Inc (Deschutes), a large national craft brewery, evaluated emerging anaerobic technologies for pretreatment of process waste streams from its brewery in Bend, OR. Deschutes sought to identify the […]
Expanding UF/MF Plants – Should you Cut the Cord with Your Existing Manufacturer?
This paper is the first part of a three-part session entitled “Guidance for Existing MF/UF Facilities: When is membrane replacement recommended, what are the viable options, can costs be reduced […]
Brine Recirculation and Other High Recovery SWRO Process Innovations Utilizing Isobaric Energy Recovery Devices
The Recovery Rate (Recovery) of a Reverse Osmosis (RO) system is defined as the ratio of permeate to total feed flow. The recovery is a key design parameter which, for […]
Sustainable Ocean Intake and Pumping Facility for the Carlsbad Desalination Plant
The Carlsbad Desalination Plant (CDP), a 50 MGD seawater desalination plant, was originally co-located with NRG’s Encina Power Station (EPS) and the feedwater was withdrawn from the EPS thermal effluent […]
Chloride Reduction in Municipal Wastewater Effluent with Membrane Brine Concentration
This paper presents a novel solution for reducing effluent chlorides or for production of potable water from wastewater treatment plant (WTP) effluent. It combines nanofiltration (NF), reverse osmosis, softening and […]
