Treatment Issues: SS, COD
Wastewater Issues: The chemical industry is one of the largest sources of industrial wastewater. Chemical wastewater is characterized by high color, high concentrations of SS, COD, and organic matter, making it particularly difficult to treat. It is discharged in large volumes, exhibits high color, and has a pH that is either acidic or alkaline; furthermore, it has poor biodegradability.
Treatment Solution: Anionic polyacrylamide is used, and it can be combined with polyaluminum chloride to improve wastewater treatment efficiency. Polyacrylamide remains the primary product used.
Treatment Results: Discharge standards are met.