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Wastewater treatment refers to the process of treating wastewater using physical, chemical, or biological methods to meet the water requirements for drainage or reuse, and purifying it.

Food wastewater treatment:

Concept: Food wastewater treatment refers to the professional treatment of wastewater generated during food processing to remove harmful substances and meet discharge standards or reuse requirements. Food wastewater mainly comes from the cleaning of raw materials, food processing, product packaging, and other processes, which contain a large amount of organic matter

General treatment process: Food wastewater treatment usually includes various methods such as physical, chemical, and biological methods. The physical methods mainly include screening, precipitation, filtration, etc. The chemical method involves adding chemical agents such as oxidants, precipitants, etc. The biological method utilizes the metabolic action of microorganisms to degrade organic matter in wastewater into harmless substances.

Printing and dyeing wastewater treatment:

Concept: Printing and dyeing wastewater refers to the wastewater discharged by printing and dyeing enterprises during the production process. These wastewater usually contain a large amount of organic matter, dyes, additives, acid-base and other pollutants, with characteristics such as deep chromaticity, high pollutant concentration, and large pH changes.

General treatment process: The printing and dyeing wastewater treatment process usually includes multiple steps such as pretreatment, physicochemical treatment, biochemical treatment, and post-treatment.

Electroplating wastewater treatment:

Concept: Electroplating wastewater treatment refers to the professional treatment of wastewater generated during the electroplating process to remove harmful substances and meet discharge standards or reuse requirements. Electroplating wastewater is a highly polluted wastewater that contains harmful substances such as heavy metal ions, organic matter, acid and alkali.

General treatment process: Electroplating wastewater treatment process usually includes a combination of multiple methods to remove harmful substances such as heavy metal ions, organic matter, and acid-base in the wastewater.