DesEL system shows promising results in removing arsenic from drinking water
GUELPH, ONT-A collaborative testing program with Mexico's Institute of Water Technology has demonstrated that Enpar's DesEL system is highly effective in removing potentially harmful levels of arsenic from potable water sources. Dr Gene Shelp, president of the Guelph, Ontario-based company, said the tests also indicate that the system is potentially more economical than conventional technologies. The current study is examining DesEL's efficacy in treating potable water sources in Mexico, which contain up to 2.35 ppm (parts per million) arsenic. These levels far exceed the Mexican government's maximum permissible limit of 0.025 ppm set for 2005. It is estimated that 500,000 people live in rural areas in which arsenic levels in local drinking water supplies exceed 0.05 ppm. The test program, conducted in the town of Huautla, resulted in treated water containing less than 0.005 ppm as total arsenic, with both arsenic removal and water recovery being about 97%. In order to continue the program, the Institute has purchased a portable DesEL-400 unit to enable on-site testing at remote locations. Arsenic, a human carcinogen, is reported to exist at concentrations higher than 0.010 ppm (the U.S. Environmental Protection Agency guideline) in drinking water at various sites in Argentina, Australia, Bangladesh, Chile, China, Hungary, India, Mexico, Peru, Thailand, and in the U.S. More information is available from Dr Gene Shelp at Enpar, 519/836-6155, FAX 519/836-5683, E-mail email@example.com, Web Site: www.enpar-tech.com.