CHARACTERIZATION AND TREATMENT OF TEXTILE PRINTING WASTEWATERS

摘要

Textile printing is becoming an important wastewater source as the water-based materials replace the organic solvent. The wastewaters originating from this operation are often strong and may contain toxics, although their volume is quite low. In this study, a textile printing plant was evaluated to assess pollution characteristics and treatment alternatives. Rotation printing wastewaters were found to be relatively diluted compared with other printing wastewaters, having a COD of around 800 mg l~-1 and responded with a high efficiency to both chemical precipitation and biological treatment.