(1) activated charcoal processing chromic waste water  the  chromium is in the galvanization amount used big one metal raw material, in waste water six price chromium along with the PH archery target different respectively by different form existence. the  activated charcoal has the very developed cellular structure and high compared to the surface area, has the greatly strengthened physisorption ability, can adsorb in the waste water effectively Cr (VI), activated charcoal superficial existence massive including oxygen groups and bases like hydroxyl (- OH), carboxyl group (- COOH) and so on, they have the static electricity to adsorb the
(2) activated charcoal processing including cyanogen waste water
 in the industrial production, the money wet extraction, chemical fiber's production, the coking, the synthetic ammonia, the galvanization, professions and so on gas production uses the cyanide or the by-product cyanide, thus must discharge the certain amount inevitably in the production process to contain the cyanogen waste water.as soon as  the activated charcoal uses in purifying the waste water to have the quite long broken stone, applies are also getting more and more in processing including the cyanogen waste water literature report, but because CN, HCN are small on the activated charcoal loading capacity, generally is 3mgCN/gAC~8mgCN/gAC (because of variety, but different), is not worthwhile in the processing cost.
（3) activated carbon treatment of waste water containing mercury Activated carbon absorption of mercury and mercury compounds of performance, but limited absorption capacity, only suitable for processing low amount of mercury in wastewater. If mercury concentrations higher, you can use chemical precipitation processing, the handling of mercury, 1mg/L, height up to 2-3mg/L, and then activated carbon for further processing.

（4) phenol activated carbon treatment Phenol is widely used in petroleum chemical origin, resin fact