Granular Activated Carbon for Industrial and Agricultural Wastewater Treatment

Treatment of industrial wastewater containing chromium

As a kind of metal raw material used in electroplating, hexavalent chromium in wastewater exists in different forms with different pH values. Activated carbon has developed microporous structure and high specific surface area, and has strong physical adsorption capacity, which can effectively adsorb Cr (VI) in wastewater. There are a large number of oxygen-containing groups on the surface of activated carbon, such as hydroxyl ( -OH ), carboxyl ( -COOH ) and so on. They have electrostatic adsorption and chemical adsorption on Cr ( VI ).  It can be used to treat Cr ( VI ) in electroplating wastewater, and the adsorbed wastewater can meet the national emission standard.

Treatment of industrial cyanide containing wastewater  

In industrial production, cyanide or by-product cyanide is used in wet extraction of gold and silver, production of chemical fiber, coking, synthesis of ammonia, electroplating, gas production and other industries. so a certain amount of cyanide-containing wastewater must be discharged in the production process. Therefore, granular activated carbon can be used to adsorb cyanide and reduce the cyanide content of wastewater.

Features:Condensed activated carbon with high methylene blue content can be used in water plants. In addition, it can effectively remove COD in wastewater. It has developed pore structure, large adsorption capacity, strong adsorption, high mechanical strength, easy repeated regeneration, low cost, low ash and moisture content.

Treatment of domestic sewage:

Domestic sewage mainly includes kitchen flushing water, flushing wastewater and other impurity water. Granular activated carbon is a kind of adsorbent widely used in domestic sewage treatment. It has unique molecular structure and surface activity, strong acid resistance, alkali resistance, high temperature resistance and high pressure resistance. Activated carbon for water treatment should have three requirements: large adsorption capacity, fast adsorption speed, good mechanical strength. The adsorption capacity of activated carbon with other external conditions, mainly related to the specific surface area of activated carbon, specific surface area is large, the number of micropores, can be adsorbed on the pore wall of the adsorbent is more.