Advances in research of arsenic removal from drinking water by adsorption

The distribution of arsenic and its harms in drinking water were discussed.The removal of arsenic in drinking water by different adsorption techniques at home and abroad and the adsorption characteristics were reviewed.Results show that,among the six adsorption methods for arsenic removal,the method by composite materials and modified materials is of low cost and high removal efficiency,so it has the most marketable prospect;the removal efficiency by activated material is strongly affected by pH;the course of arsenic removal by ferrous minerals may easily lead to secondary contamination;nanometer materials is of the highest efficiency,so it would be the main arsenic removal material in future.