Patent ID: 7897052
Filing Date: 2011-03-01
Classification: B01J,C02F,Y10S

Abstract:
1. A method for removing arsenite and arsenate from liquids through adsorption, the method comprising: creating cupric oxide (CuO) particles by reacting sodium hydroxide with copper chloride, forming copper hydroxide, placing the copper hydroxide in room temperature for a predetermined time, precipitating the copper hydroxide into cupric oxide, simultaneously filtering and washing the cupric oxide (CuO) particles, drying the cupric oxide (CuO) particles, and grounding the cupric oxide (CuO) particles into a desired particle size; reacting the liquid with cupric oxide (CuO) particles for a predetermined time; absorbing the arsenite and arsenate on the cupric oxide (CuO) particles; and filtering the reacted liquid to remove arsenite, arsenate, and the cupric oxide (CuO) particles.