What is the primary purpose of activated carbon in industrial wastewater treatment?

The primary purpose of activated carbon in industrial wastewater treatment is to remove a wide range of organic compounds and pollutants, including cyanide. Activated carbon works based on adsorption, where contaminants adhere to the surface of the carbon particles. This characteristic makes it particularly effective for capturing specific toxic substances like cyanides, which can be present in various industrial processes, especially in electroplating, mining, and chemical manufacturing.

While activated carbon can assist with the removal of some other pollutants, its primary strength lies in tackling organic compounds and certain heavy metals and toxins, making it a vital component in ensuring that wastewater meets environmental regulations before discharge. This ability to target and retain specific harmful contaminants is why activated carbon is favored in facilities dealing with complex wastewater that might contain harmful substances.