Natural Red Earth as a Material for Arsenic Removal in Drinking Water

摘要

Arsenic,a carcinogenic substance,occurs in surface and subsurface waters through natural and anthropogenic activities.It is estimated that nearly 100 million people inhabiting several countries are at a potential risk of arsenic exposure,and several thousands have already been affected by chronic arsenicosis.Therefore,there is a pressing need to develop a low cost and technically effective arsenic removal technology.While the