In the production of vitamins, especially during processes such as extraction, concentration, and drying, wastewater containing pigments may be generated. This wastewater typically has some level of coloration, which not only affects its aesthetic quality but may also contain substances harmful to environmental health. To treat this wastewater and reduce its color to meet discharge standards, various techniques and methods can be employed. Decolorizing agents, chemicals used to remove color from wastewater, work through different mechanisms to achieve the goal of decolorization.
CleanMaster Decolorizing Agents use chemical agents to react with dyes in wastewater, forming precipitates to remove color. These agents include cationic polymeric decolorizing agents like high molecular weight quaternary ammonium salt-type agents and dicyandiamide resin-based products. They are typically used in combination with coagulants (such as polyaluminum sulfate, polyaluminum chloride, and polyacrylamide) to coagulate suspended solids and dissolved organic matter in the wastewater, forming flocculent matter, which can be separated from the wastewater through sedimentation or filtration.
In summary, the use of a combination of physical, chemical, biological, and advanced oxidation methods ensures that vitamin wastewater is effectively treated, leading to significant color reduction and meeting environmental discharge standards.
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