ARA Perchlorate Treatment Milestones

Experience and Proven Results with perchlorate
contamination cleanup solutions

ARA has executed more than 30 contracts on perchlorate treatment; from consulting to full-scale design, engineering, and operational support.

1992-1997 Development of the Perchlorate Biodegradation Process by ARA and the U.S. Air Force
1996 Perchlorate Biodegradation Patent (licensed by ARA)
1997 Start-up of First Commercial Biodegradation System at Promontory, UT, ATK Launch Systems
2000 US Patent 6,077,432, “Biodegradation of Ammonium Perchlorate, Nitrate, Hydrolysates, and other Energetic Compounds”
2003 Pilot Demonstration of a Membrane Bioreactor for Perchlorate and Nitrate reduction in Spent Ion Exchange Brine
2004 Startup of the Pyrodex Biodegradation System at Hodgdon, KS, Hodgdon Powder Co.
2005 Groundwater Remediation Pilot Demonstration at Redstone Arsenal, AL, using Regenerable, Weak-Base Anion (WBA) Resin
2006 Drinking Water Treatment Pilot Demonstration at Fontana, CA, using Regenerable, Weak-Base Anion (WBA) Resin
2009 Initiated Construction of a Full-Scale (1000-gpm) Drinking Water Treatment System at Rialto, CA, using Regenerable, Weak-Base Anion (WBA) Resin
2010 Initiated a commercial ion exchange system using ARA's WBA process to treat perchlorate in industrial wastewater
2011 Granted Patent No. US 7,875,186 B2: Process for Regenerating and Protonating a Weak-Base Anion Exchange Resin