Dyeing Wastewater Treatment Aluminum Sulphate

With the development of the textile printing and dyeing industry, the impact of printing and dyeing wastewater on the environment is becoming increasingly severe. The research and development achievements in the treatment of printing and dyeing wastewater are also constantly being transformed and applied. Currently, the use of aluminum sulfate for dyeing wastewater treatment has a very obvious effect.

Textile printing and dyeing wastewater has the characteristics of large water volume, high organic pollutant content, high alkalinity, and significant water quality changes. It is one of the difficult to treat industrial wastewater, which contains dyes, pulp, additives, oil agents, acid-base, fiber impurities, sand substances, inorganic salts, etc. The main methods used for the treatment of printing and dyeing wastewater include physical and chemical methods, biochemical methods, chemical methods, and a combination of several processes. The pre-treatment in wastewater treatment is mainly aimed at improving the water quality, removing suspended solids and impurities that can be directly settled, adjusting the water quality and quantity, reducing the temperature of wastewater, and improving the overall effect of wastewater treatment, ensuring the stability of the entire treatment system. Therefore, pre-treatment plays an extremely important role in printing and dyeing wastewater treatment.

Due to the complex water quality of printing and dyeing wastewater, pollutants can be divided into two categories based on their sources: one comes from the entrainment of fiber raw materials themselves; Another type is the slurry, oil, dyes, chemical additives, etc. used in the processing process. The use of aluminum sulfate for textile printing and dyeing wastewater treatment can effectively treat the wastewater, decolorize the wastewater, effectively coagulate organic matter and impurities, and the acidity of aluminum sulfate can neutralize the alkalinity in the printing and dyeing wastewater, achieving a good treatment effect.

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