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Coal-based Columnar Activated Carbon: Industrial Wastewater and Flue Gas Treatment

Coal-based extruded activated carbon is manufactured from high-quality anthracite through processes such as crushing, carbonization, and activation, resulting in black, cylindrical granules. Its key advantages include a highly developed pore structure, large specific surface area, high mechanical strength, and low bed resistance, alongside good chemical stability, ease of regeneration, and cost-effectiveness. These characteristics make it an outstanding choice for high-flow, high-intensity industrial treatment applications.

 

In the field of water treatment：

Coal-based activated carbon is widely used for tap water purification, industrial water treatment, and the advanced treatment of domestic sewage and various industrial wastewaters; it effectively removes harmful substances such as organic compounds, residual chlorine, heavy metal ions (e.g., mercury, lead, arsenic), and cyanides.

 

In the field of waste gas treatment:

Coal-based extruded carbon is frequently employed for the purification of chemical feedstock gases, flue gas desulfurization and denitrification in power plants, and vapor recovery at facilities such as oil refineries and gas stations.

 

Wood-based Columnar Activated Carbon: Organic Solvent Recovery and High-Purity Purification

Wood-based columnar activated carbon is produced from forestry processing residues—such as high-quality wood chips and sawdust—through processes including pulverization, extrusion molding, carbonization, and activation. Compared to coal-based counterparts, its most notable characteristics are low ash content, minimal impurities, and high CTC adsorption capacity. These advantages have secured its dominant position in the field of organic solvent recovery, where it is widely used to adsorb and recover various organic vapors, including benzene series compounds (such as toluene and xylene), ketones, alcohols, and carbon disulfide.

 

In addition, wood-based activated carbon finds extensive application in scenarios requiring high purity, such as decolorization in the food industry, refining and purification in the pharmaceutical sector, and indoor air purification.

 

Coconut Shell-Based Columnar Activated Carbon: A Dual-Performer in High Adsorption Capacity and Environmental Remediation

 

Coconut shell-based granular activated carbon is derived from coconut shells, while it falls under the category of wood-based products, it is often classified separately due to its outstanding performance. It retains the advantages of wood-based carbon—such as low ash content and minimal impurities—while excelling in specific surface area and microporous structure. In water treatment, it effectively removes contaminants such as heavy metals and phosphates.

 

Additionally, coconut shell activated carbon shows potential in energy storage, serving as an electrode material for supercapacitors. Its typical applications range from gas-phase adsorption and advanced drinking water purification to gold extraction and the treatment of VOC (volatile organic compound) emissions.