Comparison of Proven Technologies for Reverse Osmosis at 95% Recovery for a Full-scale Potable Reuse Facility
Padre Dam Municipal Water District is considering two technologies to achieve a high recovery with reverse osmosis for its upcoming advanced water purification facility. Pilot testing from 2016-2017 at Padre […]
Effect of Repetitive Chemical Cleaning on the Performance of Polymeric Nanofiltration Membranes
Chemical cleaning is a part of the membrane maintenance process and is usually performed when the permeate flux decreases by about 10% or when the pressure drop increases by about […]
Twin Turbochargers Provide High Permeate Recovery at Low Net Energy Consumption and Low Capital Cost in Megascale SWRO Systems
This study will compare conventional SWRO systems operating at 40-45% recovery utilizing currently available energy recovery devices with the twin turbocharger design operating at about 60% recovery. Also, the impact […]
Membrane Replacement, System Upgrades and Rehabilitation of a 25-Year-Old Nanofiltration System
This paper provides a summary of the membrane evaluation, condition assessment, evaluation results, design considerations for the system upgrade and a discussion of several items found during commissioning.
Planning for an Integrated Membrane Surface Water Treatment Plant – An Owner?s Perspective
To meet the current and future water demand needs, the city of Pearland is planning to construct a new membrane Surface Water Treatment Plant. The plant will have a production […]
Avoiding Tunnel Vision: High-Recovery Membranes in the Rocky Mountains
A newly built zero-liquid discharge industrial wastewater treatment plant for the treatment of groundwater flow from a railroad tunnel provides an excellent example of an elegant solution to a highly […]
Tap Into MBR – The Hamby WRF Indirect Potable Water Reuse Project
The Hamby WRF project is an important drought resilience planning project where indirect potable water reuse is being applied successfully. Execution of such a project comes with a variety of […]
The Use of Chlorine Dioxide as a RO Membrane Cleaning Aid for Natural and Synthetic Organic Foulants
This paper attempts to identify the mechanisms by which chlorine dioxide aided in foulant removal, and to verify the tolerance of polyamide membranes to ClO2 as a cleaning aid.
Results of 2017 Survey of US Municipal Desalination Facilities
This paper presents results from the latest survey conducted in 2017 and funded by the Bureau of Reclamation.
Performance of Super Enhanced Permeate Flow RO Elements With 3D Spacers Printed Directly on the Membrane Surface
Aqua Membranes has developed membrane feed spacers printed directly on the membrane surface. These spacers are thinner than conventional mesh spacers and allow up to twice as much membrane surface […]
