There are two main reasons for excessive selenium in water. The other is contaminated by industrial wastewater containing selenium. Selenium is one of the essential trace elements in humans and livestock, but excessive intake can be toxic to humans. Selenium is one of the most important indicators of drinking water quality because of the extremely narrow safe range between the concentrations of essential trace elements and those that cause selenium poisoning.

The ion exchange method is effective in removing selenium from water, and the method is simple and practical. The ion exchange resin produced “Bestion”resin science and technology co., ltd. has good selenium removal effect, large exchange capacity, good selectivity, stable chemical properties, easy migration and diffusion of ions in the process of ion exchange, rapid exchange rate, high efficiency, is an ideal selenium exchanger.