This paper examines the use of a membrane biofilm reactor (MBfR) to remove perchlorate in a groundwater from ~10 mg/L to below the Arizona clean-up level of 14 æg/L. Results provided indicate that a two stage MBfR is needed to reach the Arizona target concentration because of sulfate reduction...

Modeling of two membrane bioreactor processes to evaluate methane production for power generation. The two approaches compared include an aerobic membrane bioreactor coupled with a traditional anaerobic digester plus direct treatment by an anaerobic digester....

In work is a collaboration between the Arizona State University (ASU) and the United States Bureau of Reclamation Water Quality Improvement Center (WQIC) in Yuma, AZ. The paper presents the results of long-term performance testing of Linde Type A (LTA) Polyamide Thin Film Nanocomposite Reverse Osmosis membranes for desalination of brackish water....

Biofouling remains one of the greatest challenges to the water industry to date. Among the many strategies practiced by the water industry, an effective pretreatment system with cleaning protocol (Clean-in-Place, CIP) remains the only viable option. This practice, however, seems not to be fully effective in eliminating biofouling altogether. Other ...

Ammonia and urea are heavily depended upon for industry products such as fertilizer, diesel exhaust fluid, resin fabrication, and refrigerant gas. The current fabrication of ammonia and urea is energy intensive. However, urine provides a local, abundant source of nitrogen. Depending on the urine chemistry, urea or ammonia has the potential to be re...