As a key link in the meat industry chain, slaughterhouses produce complex waste water. If not properly treated, direct emissions will impose a heavy burden on the environment. Therefore, efficient and environmentally friendly wastewater treatment processes are essential for slaughterhouses.

Slaughtering wastewater contains many kinds of organic matter and impurities, and its water quality characteristics complicate the treatment process. Wastewater not only contains visible components such as grease and suspended matter, but also contains a large number of organic pollutants that are difficult to detect. If these pollutants are discharged directly without treatment, they will seriously pollute the surrounding environment.

In the treatment of slaughterhouse wastewater, pretreatment is an indispensable first step. By means of equipment such as grilles and grease traps, large suspended particles and grease in wastewater can be effectively removed, laying a solid foundation for subsequent biochemical treatment. Pretreatment not only reduces the burden of subsequent processing equipment, but also improves the overall processing efficiency.

Biochemical treatment is the core of slaughterhouse wastewater treatment. In this process, the degradation of microorganisms is used to convert organic matter in wastewater into harmless substances. According to different wastewater characteristics and treatment requirements, different biochemical treatment methods can be selected, such as activated sludge method, biofilm method, etc.

When local environmental protection departments have strict requirements for wastewater treatment and discharge, they should conduct in-depth treatment.

The advanced treatment of discharge wastewater should adopt the combination of biological treatment and physical and chemical treatment, such as biological aerated filter (BAF), biological activated carbon, coagulation precipitation, filtration, etc. The specific combination method and related process parameters should be determined by test. Reuse water should be mainly used in the project site, supplemented by outside the plant area.

When the reuse water is used for flushing the ground, flushing the toilet, flushing vehicles, greening, building construction and other purposes, the water quality should meet GB/T18920