You are here:
ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT, REMOVAL OF ARSENIC IN DRINKING WATER: DELTA INDUSTRIAL SERVICES, INC., CAMPWATER PORTA-5 SYSTEM
Citation:
NSF International. ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT, REMOVAL OF ARSENIC IN DRINKING WATER: DELTA INDUSTRIAL SERVICES, INC., CAMPWATER PORTA-5 SYSTEM. U.S. Environmental Protection Agency, Washington, DC, 2004.
Impact/Purpose:
to present information
Description:
The CampWater system uses ozonation followed by cartridge filtration to remove arsenic via co-precipitation. The system utilizes ozone to oxidize iron and arsenic (III) to arsenic (V). The arsenic bound to the iron precipitates is then removed by cartridge filtration. No additional flocculation, solids separation or clarification is required. The CampWater system was tested on a ground water source with 27 ug/L arsenic and 0.62 mg/L iron. Operating the system at 550 mV oxidation-reduction potential (ORP) and the natural water pH of 7.9 reduced the arsenic by 33%. Subsequent tests at 550 mV ORP showed that decreasing pH to 7.5 improved arsenic removal.