AWC® is proud to announce that our CEO and Technical Director, Mo Malki, won the AMTA Best Paper Award at the MTC 2017 conference in Long Beach, California. The paper, titled “A Novel Calcium Carbonate Scaling Model for Calculating Maximum Recovery and Inhibitor Dosages in Industrial RO Applications” described three indices developed by American Water
Membrane Autopsies: Why, When and How
Why do membrane autopsies? The word autopsy derives from the Greek word “autopsia” which means “to see with one’s own eyes.” Autopsies can identify specific foulants and scalants on the membrane surface, and they can determine the presence of chemical or mechanical damage that has occurred during operation. The data and conclusions from an autopsy
Removal of Silica Fouling From Membrane Elements
An 8-MGD water reclamation system in Northern California was experiencing membrane fouling that was increasing the required feed pressure to produce water. A membrane autopsy showed that the fouling was caused by silica scale. Membrane Cleaning Chemicals Results – Train One & Three The system consisted of three trains, each designed to produce 1850 gpm
AWC® Brings Ultrafiltration System at the Cincinnati Zoo to Optimal Performance
Ultrafiltration System Optimized at Cincinnati Zoo The Cincinnati Zoo uses an ultrafiltration system (UF) to treat storm water. The reclaimed water is collected from fourteen acres of the park, including parking lots, animal exhibit yards, rooftop drains and walking-path storm drains. These combined sources run through a straining basin to a 300,000-gallon retention tank system.
Membrane Autopsy: Damage from Permeate Backpressure
American Water Chemicals® (AWC) recently received a tail end nanofiltration membrane for autopsy from a client who was experiencing issues with disinfection byproducts in their finished water. Water testing had confirmed that the NF membranes were not rejecting the high organics in their feed water, and the client was concerned that the membranes (which were