Civil & Industry Water Treatment

1. Arsenic in groundwater Arsenic is a common source of pollution in drinking water in nature, from arsenic-containing rocks, soils, etc., and then slowly diffuses into the water. Arsenic is often present in both organic and inorganic arsenic forms, whereas inorganic arsenic is more prevalent in water and more toxic. The countries with serious arsenic pollution in groundwater are India, Bangladesh, Vietnam, Argentina, Chile, Mexico, China, and Hungary. In China's Taiwan, Xinjiang and Inner Mongolia, local groundwater contains up to 2000ug/L of arsenic. At present, the World Health Organization stipulates that arsenic in drinking water should not exceed 10 ppb.