Environmental Protection Is The Most Important Mission for All Carbon Filter Companies

作者 watfilter

Due to the advantages of developed pore structure, activated carbon blocks are regarded as the most excellent adsorbent and catalyst carrier, and are widely used in chemical, metallurgical, petrochemical, pharmaceutical, food, light industry, military and other fields. As an important purification material for gas and water contaminant treatment, activated carbon filter have played an increasingly important role in the field of environmental protection  in recent years. Its typical applications include organic solvent recovery, desulfurization and denitrification, adsorption and concentration of organic vapors, catalytic combustion, sewage treatment and deep purification.

China activated carbon block filter | custom water purification manufacturer & supplier-HUATAN

The environmental protection industry is an important market and service target for activated carbon filter companies. More and more activated carbon block manufacturers are beginning to work on the research and development of new activated carbon filter products required by the environmental protection industry, and make their due contributions to the promotion of environmental protection industry products and environmental protection.

The adsorption characteristics of activated carbon are determined not only by its pore structure but also by its chemical composition. There are two types of impurities in activated carbon. One is represented by chemically bonded elements, that is, oxygen and hydrogen. The other type of impurity is ash, which is a non-organic part of the product. Ash content is an important technical indicator for the manufacture of activated carbon filter cartridges. The surface oxygen-containing groups are a carbonyl group, a carboxyl group, a phenol group, a lactone, and an anthracene. The content and type of these two types of impurities depend on the source of the raw materials, the manufacturing process, and the surface modification.

In the application of  liquid pollutant treatment, activated carbon has outstanding filtration capacity for BOD, COD, organic chlorine, organic mercury, chromium, phenol, cyanide and most organic substances in wastewater. It is widely used  for wastewater treatment in papermaking, textile, printing and dyeing, sugar, brewing, pharmaceutical, tanning, coking, pesticide, organic synthesis, petrochemical, polymer synthesis, electroplating and other industries. It is also effective for water purification (such as drinking water, high purity water, non-ionized water, boiler water).

However, there are many factors that affect the effectiveness of water treatment. In terms of activated carbon itself, the main influencing factors are pore structure and surface groups. Only when the pore diameter / adsorbate molecular diameter > 1.7, its pore volume is the most effective, its highest utilization occurs in the range of 1.7 < pore diameter / adsorbate molecular diameter <3. As the D/d value increases, the pore volume utilization decreases. At the same time, the pore diameter should be selected according to the different regeneration methods. If it is selected for desorption (such as solvent recovery) or heating regeneration (if the adsorbed material is easily decomposed by heat), it is appropriate to choose D/d=36; In the regeneration process, and the adsorbed material is decomposed into smaller sizes due to the action of the regenerating agent, and D/d can be selected in the range of 1.73 when it is difficult to be adsorbed by the activated carbon.

In the application of exhaust gas and harmful gas adsorption, according to different functions, activated carbon can be divided into desulfurization carbon, solvent recovery carbon, deodorization carbon, ozone purification carbon, gasoline recovery carbon and the like. And Clients‘ requirements in this industry for such activated carbon block products are large adsorption capacity, weak water absorption, good reproducibility and low price.

Regardless of the application area, HUATAN, as a leading brand in China’s activated carbon filter industry, we believe that environmental protection should be an important mission for all activated carbon filter companies. We need to develop activated carbon rod products with different surface properties according to the target of pollution treatment to meet the needs of the environmental protection market and better protect the health of all of us.If you are interested in learning more about our activated carbon block or water filter products, you are welcome to contact us at info@watfilter.com.