Slaughterhouse wastewater treatment equipment

Slaughterhouse wastewater treatment equipment is an environmental protection equipment specially designed for treating wastewater generated by the slaughtering industry. It aims to remove pollutants such as organic matter, suspended matter, ammonia nitrogen, pathogenic microorganisms, etc., to ensure that the wastewater meets the discharge standards or reuse requirements. This type of equipment usually includes pretreatment, biological treatment, deep treatment and sludge treatment units. The following is a detailed description of its working principle, main features and application scope: Working principle: 1. Pretreatment: - Screen: intercepts larger suspended matter, minced meat, hair and other debris to prevent clogging of subsequent treatment facilities. - Sedimentation tank (such as primary sedimentation tank): preliminary separation of suspended solids in wastewater by gravity to reduce the organic matter load. - Grease trap (if necessary): separates floating oil in slaughterhouse wastewater to reduce the burden of subsequent treatment. - Regulating tank: balance water quality and water volume to ensure stable operation of subsequent treatment equipment. 2. Biological treatment: - Anaerobic biological treatment (such as UASB, EGSB, etc.): under anaerobic conditions, anaerobic microorganisms are used to decompose organic matter to produce biogas (recyclable) and biogas residue (further treatment). - Aerobic biological treatment (such as activated sludge method, biofilm method, etc.): Under aerobic conditions, aerobic microorganisms oxidize and decompose organic matter, reduce the content of organic matter and ammonia nitrogen, and produce sludge (need further treatment). 3. Deep treatment: - Coagulation and sedimentation: Add coagulants (such as PAC, PAM) to flocculate suspended matter and colloidal substances, and remove them by sedimentation or flotation. - Filtration (such as sand filtration, activated carbon filtration, etc.): Further remove fine suspended matter and dissolved organic matter to improve the quality of effluent water. - Disinfection (such as ultraviolet disinfection, sodium hypochlorite disinfection, etc.): Kill pathogenic microorganisms to ensure that the effluent is harmless. 4. Sludge treatment: - Concentration (such as concentration tank, belt concentrator, etc.): Reduce sludge volume and increase solid content. - Dehydration (such as belt filter press, plate and frame filter press, etc.): Further reduce the water content of sludge to form a mud cake for subsequent disposal. - Stabilization (such as anaerobic digestion, aerobic composting, etc.): reduce the content of organic matter and potential environmental pollution risks through biodegradation or thermochemical reaction. Main features: - Strong targeting: specially designed for the characteristics of slaughterhouse wastewater (such as high suspended matter, high organic matter, high ammonia nitrogen, high oil, etc.), with good treatment effect. - Strong treatment capacity: can effectively remove organic matter, ammonia nitrogen, suspended matter, pathogenic microorganisms, etc. in wastewater to ensure that the effluent meets the standards. - Stable operation: the equipment has a compact structure and a high degree of automation, can adapt to the fluctuation of water quality and water volume of slaughterhouse wastewater, and can operate stably for a long time. - Resource recovery: some equipment (such as anaerobic digester) can recycle biogas as energy to achieve resource utilization. - Sludge reduction: through concentration, dehydration and other processes, the volume of sludge is significantly reduced, which is convenient for subsequent disposal. Scope of application: - Slaughterhouse: directly applied to the sewage treatment of various slaughterhouses, including pig, cattle, sheep, poultry and other slaughterhouse wastewater. - Meat processing enterprises: suitable for the treatment of wastewater generated in the links of meat cutting, refrigeration, cooked food processing, etc. - Food processing park: centralized treatment of wastewater from multiple slaughterhouses and meat processing enterprises in the park to achieve large-scale and centralized treatment. - Agricultural circular economy: treated effluent can be used for farmland irrigation, and sludge can be used as organic fertilizer after stabilization treatment, forming an agricultural resource recycling system. In summary, slaughterhouse wastewater treatment equipment uses a series of physical, chemical, biological and other treatment methods to comprehensively treat slaughterhouse wastewater to ensure that it meets environmental emission standards or reuse requirements. It also has resource recovery and sludge reduction functions, and is an important infrastructure for the slaughterhouse industry to achieve clean production and sustainable development.