Products

Wastewater from printing and dyeing, wool dyeing and finishing and silk factories mainly processing cotton, hemp, chemical fibers and their blended products. The quantity and quality of printing and dyeing wastewater are different with different fiber types and processing technology. Among them, the amount of printing and dyeing wastewater is relatively large, and the water consumption per ton of textile processing is 100-200t, 80% - 90% of which is discharged as wastewater. Printing and dyeing wastewater has the characteristics of large amount of water, high content of organic pollutants, high alkalinity and great changes in water quality. It is one of the industrial wastewater that is difficult to treat. The wastewater contains dyes, size, additives, oil, acid and alkali, fiber impurities, sand substances, inorganic salts, etc.

The main treatment process is "pretreatment + neutralization + hydrolysis acidification + contact oxidation + Advanced Oxidation / membrane treatment". After treatment, it can reach the comprehensive wastewater discharge standard or industry discharge standard, and the system is mainly concrete tank.