Activated carbon adsorption tests: the solution Cr (VI) concentration of 50mg / L, PH = 3, when the adsorption time 1.5h, adsorption properties of activated carbon and Cr (VI) of the detachment rate far the best results, the activated carbon pricing, therefore, activated carbon price, the use of chromium-containing wastewater treatment process of activated carbon is activated carbon physical adsorption of the solution, Cr (VI), and chemisorption results Benxi activated carbon combined effects of chemical reduction. Activated carbon treatment of wastewater containing chromium, adsorption performance, stability, high efficiency, export of activated carbon, low operating costs, a certain social and economic benefits of coconut shell (husk) coconut shell carbon is a specially treated carbon, with numerous small porosity, surface area is huge, coconut shell activated carbon surface area per gram of 500 to 1500 meters. Coconut shell activated carbon has a strong physical adsorption and chemisorption functions, but also has a detoxifying effect. Detoxification is the use of its huge size, the poison coconut shell activated carbon adsorption in micropores, thereby preventing the absorption of poison. Meanwhile, coconut shell activated carbon can be combined with a variety of chemical substances, which prevent the absorption of these substances. 2.1 coconut shell activated carbon free application in the production of coconut shell activated carbon There are many types. Usually made of powdered or granular. Powdered coconut shell activated carbon adsorption capacity, easy preparation, lower prices, but regeneration difficulties, generally can not be reused. Coconut shell granular activated carbon is more expensive, but after repeated use of renewable and better labor conditions of use, convenience of operation. Therefore, more frequent use in water treatment .2.2 granular coconut shell activated carbon coconut shell activated carbon adsorption coconut shell activated carbon adsorption refers to one or coconut shell activated carbon adsorption utilizing a solid surface of a variety of substances in water, in order to purify the water quality purposes. 2.3 Factors affect coconut shell activated carbon adsorption adsorption capacity and adsorption rate is the main indicator to measure the adsorption process. Size adsorption capacity is measured by adsorption. The adsorption rate refers to the unit weight of adsorbent mass composition in unit time adsorbed. In water treatment, water absorption rate determines the need and adsorbent contact time. Saatchi water (Figure) _ _ Benxi production of activated carbon activated carbon water purification materials provided by the Henan Spirit Limited. Spirit Henan water purification Material Co., Ltd. (www.gyssjs.com) strong, credible, in Zhengzhou, Henan water treatment chemicals and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Spirit into the brilliant water and you work for a better future!