Molecular mass of activated carbon adsorption to activated carbon gravity posture transmission gap, can be divided into the following steps: 1, the external diffusion: when adsorbed from solution dispersed mass transfer to the adsorbent surface, to be surrounded by activated carbon adsorption membrane processes, and adsorbate molecules transferred to the nearby adsorbent surface. 2, the surface diffusion: adsorbate adsorbed along the outer surface of the activated carbon to pore diffusion process inside the three internal particle diffusion: adsorbate transferred to the position of the activated carbon adsorption holes inside the process. 4, physical adsorption: After contact with the activated carbon adsorbate, adsorbate molecules attached to the adsorption position, losing the freedom, then export adsorbate concentration decreases, and in the case of export concentration changes, to represent the adsorption rate. 5, desorption: adsorbate since active position out to regain the freedom, that is, since the removal of the internal pores of the activated carbon process, steps 4 and 5 when the reaction rate considerably, then the activated carbon adsorption quality reached homeostasis. 6, chemisorption: adsorbate and the adsorbent surface chemical reaction, depending on the nature and quality of the activated carbon adsorption is different. 7, the surface renewal: has been adsorbed on the activated carbon adsorption, chemical reaction product of gold purification activated carbon, highly volatile, fire and metal ion catalyzed hydrolysis, therefore since the removal of activated charcoal, activated carbon adsorption capacity of recovery, but can used again. Typically external diffusion, surface diffusion and internal diffusion particle diffusion rate determines the rate of adsorption of activated carbon powder activated carbon bleaching rate, however, the flow in the liquid phase adsorption system, if the flow rate is too slow, too slow will cause convection, the internal particle diffusion become the controlling factor of the liquid phase adsorption rate. Now on the market and there are a lot of selling on Taobao merchants activated carbon package, saying it was in the house or the car can go out harmful substances or odors (formaldehyde ..). We all know that the activated carbon molecular sieve is to play the role of a liquid or gas can filter small particles, played the role of clean air and water. But do not forget, he was just a sieve, they can not have any incentive to drive the air or liquid flowing from its own sieve to filter impurities. Only an external force, the liquid or gas has a certain speed, through the activated carbon charcoal full body, in order to play the role of filtering. We can make a simple little experiment. You smoke cigarettes mouth, spit into the surrounding charcoal pack, see the smoke can not absorb it in the past. . As another example, if there is poison in the air activated carbon, we will wear gas masks (respirators is inside the activated carbon particles in the filter) to breathe, gas masks can effectively filter the air toxic water molecule activated carbon from coal, but do not forget up, is our breath until the gas flow through the activated carbon particles in the gas masks play filtration. Imagine the indoor air toxic gases. You put some gas masks in the room will automatically go in the room where the gas mask? . So, in the room or enclosed space to put carbon, is not have any role in purifying the air. Powdered activated carbon water filter activated carbon quote _ Song Xin (certified) _ Huozhou provided charcoal filter by Gongyi City Song Xin Industrial Limited. Gongyi City Song Xin Industrial Co. filter (www.sxlc.com) is Zhengzhou, cleaning, cleaning equipment leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Song Xin filter in leadership with the staff warmly welcome all inquiries negotiations to create Song Xin filter a better future.