Activated carbon filter

watermembraneabsorption

The activated carbon filter is the use of granular activated carbon to further remove the mechanical filter the water, residual chlorine, organic matter, suspended solids and impurities, providing good conditions for the subsequent reverse osmosis treatment. Activated carbon filter with high carbon content, molecular weight, physical adsorption of impurities in the water than the surface area of activated carbon organic floc, to achieve water quality requirements, when the flow through the pores of activated carbon, a variety of suspended particles, organic matter, such as van der Waals forces the role of adsorption on activated carbon pores; chlorine (hypo chlorous acid) adsorbed on the surface of activated carbon in the carbon surface chemical reaction, is reduced to chloride ions, thus effectively in addition to chlorine, to ensure that the effluent chlorine residual is less than 0.1ppm, to meet the operating conditions of the RO membrane. Increased gradually with the passage of time the pores of activated carbon and particulate interception material, filter differential pressure be increased until failure. Is usually the case, according to the filters before and after the differential pressure, the use of reverse flow backwash filter, most of the adsorption on activated carbon pores interception material stripped and taken away by the water, restore the absorption features; the adsorption capacity of activated carbon saturated thoroughly failure to deal with the activated carbon regeneration or replacement of activated carbon to meet the engineering requirements.