The role of magnesium sulfate in wastewater treatment

In the field of environmental protection, magnesium sulfate is the raw material that can be directly used as sewage treatment agent or sewage treatment agent for industrial sewage treatment. Taking the printing and dyeing wastewater treatment as an example, the influence of magnesium sulfate on wastewater treatment is introduced in detail. The pollutants in the printing and dyeing wastewater mainly come from cotton, salt, oil, oil and other textile fibers, as well as various additives, dyes, surfactants, additives, acid, alkali, etc. It is a kind of industrial wastewater harmful to the environment, large discharge, high chromaticity, organic matter is difficult to degrade, to bring great difficulties to the wastewater treatment. 1, the amount of wastewater is large, pure cotton, pure cotton and mixed textile is 2.5~3.5m3/100m, polyester cotton fabric is 2~2.4m3/100m, silk fabric is 4~6m3 / 100m, refined textile is 12~15m3 / 100m. 2, the water quality is complex, the wastewater contains residual dye, slurry, additives, fiber impurities and inorganic salts. Nitro and amine compounds as well as heavy metals such as copper, chromium, zinc and arsenic have great toxicity to the dye structure. 3. The content of organic matter in the printing and dyeing wastewater is relatively high, and the cod content is between 800 mg/L and 1200 mg/L, and its components are residual dyes, additives, slurry, etc. 4, poor biochemical properties, the BOD / COD value of wastewater is very low, generally about 0.2. Therefore, measures should be taken to improve the B / C value of biochemical treatment 5, wastewater contains a large number of additives and surfactants difficult to biodegrade and pollute water, also used for aeration, foam, oxygen resistance and other biological treatment. About the role of magnesium sulfate in the treatment of industrial wastewater you can understand, in fact, the use of the product is very wide, later want to know more can continue to pay attention to our feed additive magnesium sulfate manufacturer Jiangsu Mineng Biotechnology Co., LTD.