Which is a good manufacturer of slaughter wastewater treatment equipment

The two main methods for pre-treatment of general slaughter wastewater are air flotation and screening (with a filtration aperture of 1-5mm). Air flotation is mainly used in treatment stations with small wastewater volumes, but its disadvantages are complex equipment, difficult management, high operating costs, and poor sanitation conditions; Screening is mainly used for the pretreatment of slaughter wastewater with a large amount of wastewater, with convenient management and stable operation. The organic compounds in slaughterhouse wastewater are mainly proteins and fats, which belong to large molecule long-chain organic compounds and are difficult to be directly utilized by general aerobic bacteria. In their biodegradation process, they are generally decomposed into small molecule organic compounds such as amino acids and carbohydrates through the action of enzymes before being directly utilized by aerobic bacteria. Therefore, the setting of acidification and hydrolysis processes in slaughterhouse wastewater treatment equipment is very important.

There are many processes for treating slaughterhouse wastewater, including natural ecological treatment, biological treatment, and chemical treatment. Each process has its own advantages and limitations. Therefore, the selection of slaughterhouse wastewater treatment equipment and processes should be based on the characteristics of the incoming water quality, treatment and discharge requirements, and comprehensive consideration of economic and management factors. Attention should also be paid to the combination of different slaughterhouse wastewater treatment processes.

1. Which is a good manufacturer of slaughter wastewater treatment equipmentCoagulation method: Common coagulants used in coagulation treatment include aluminum salts, iron salts, etc. Among them, polymeric ferric sulfate coagulation has a better effect on treating slaughter wastewater. Polyaluminum chloride and polyethylene ammonia can also be mixed as coagulants, and polymeric ferric sulfate can be used as coagulants to treat slaughter wastewater. One coagulation treatment can achieve or approach the comprehensive wastewater discharge standard.

A clear problem with simple coagulation treatment is that the blood generated during the slaughter process is difficult to remove, and a large amount of sludge and waste residue are also produced. Therefore, if the slaughter wastewater is appropriately denatured before using coagulation treatment, and then treated with a composite coagulant of ferrous sulfate and calcium oxide, it has a good treatment effect. Coagulation treatment has low cost and good treatment effect at low temperatures. This method is often used to treat low concentration wastewater or as a pretreatment for high concentration wastewater to reduce the load of subsequent biological treatment.

1. SBR process is an economical method to treat slaughterhouse wastewater. However, because slaughterhouse wastewater contains a large amount of oil, blood, water, carbon nitrogen ratio and carbon phosphorus ratio, nitrogen and phosphorus are relatively insufficient, at this time, lucky foam is prone to produce, which will loose the sludge and increase the index, and high viscosity expansion is prone to cause sludge loss. To achieve high denitrification efficiency, the SBR process is equipped with a stirring device, and there is inevitably a phenomenon of sludge floating up. The removal effect of chromaticity is not ideal, and the auxiliary post-treatment process is used. Therefore, air flotation for oil and fat removal becomes the treatment unit of SBR method for treating slaughter wastewater. After being treated by SBR method, the ammonia nitrogen content in the wastewater is still high, which can be removed by chemical methods after this process.

2. The sequencing batch biofilm method has; Good denitrification and denitrification function, good hydraulic conditions, strong resistance to shock loads, high biological concentration, suitable for the production of nitrifying bacteria with a longer period of time (under the same operating conditions, the treatment effect of biofilm system is better than that of activated sludge system).

3. Aerobic biological treatment of organic wastewater requires sufficient oxygen supply, but traditional feeding methods are difficult to meet the oxygen demand of high concentration organic wastewater. It has the advantages of fast reaction speed, small footprint, low infrastructure costs, stable operation and management, and stable effluent quality.

4. Anaerobic biological treatment is mainly used to treat high concentration organic wastewater. Many improved anaerobic methods are used in the treatment of slaughter wastewater, targeting the characteristics of various treatment processes for slaughter wastewater.

5. Pressure biological contact oxidation coagulation sedimentation combination process: This process is suitable for treating medium concentration slaughter wastewater. The effluent is first subjected to pressurized biological contact oxidation treatment to increase the degradation rate of dissolved oxygen and organic matter in the wastewater. After coagulation and sedimentation, it can achieve the secondary discharge of existing enterprises.

6. The two-stage high-speed upflow anaerobic sludge bed UASB method and dissolved air flotation upflow anaerobic sludge bed method: This process is an improved process on a single UASB method, suitable for treating slaughter wastewater containing high concentrations of suspended solid fat particles and oils. The stage of the two-stage high-speed upflow anaerobic sludge bed UASB method is a UASB reactor using flocculant sludge, which can remove insoluble COD such as fat particles and oils. To use COD from granular sludge.

7. Hydrolysis acidification biological adsorption contact oxidation process: This process is particularly suitable for treating high concentration slaughter wastewater and wastewater with significant changes in water quality and quantity. Adopting the AB two-stage combination process, the A stage has a high load, and the sludge flocs have strong adsorption capacity and good settling performance. They have strong resistance to impact loads and have a significant buffering effect on toxic substances. However, the sludge volume is high, and corresponding sludge treatment measures need to be taken. The small amount of difficult to settle detached biofilm in the effluent of the B-stage secondary sedimentation tank is further removed through air flotation treatment to increase the effluent volume.

8. Upflow anaerobic sludge bed filter batch activated sludge process: This process is suitable for the treatment of wastewater with large water quality fluctuations and high protein content. The upflow anaerobic sludge filter is a reactor that combines the upflow anaerobic sludge bed and upflow anaerobic sludge bed filter with the sequencing batch activated sludge process and anaerobic filter tank. This process is suitable for intermittent inflow of slaughter wastewater.

At present, China mainly relies on small water slaughter wastewater treatment stations. In the current situation of relatively low environmental investment, the selection of slaughterhouse wastewater treatment equipment and processes should be developed in the direction of energy conservation, intensification, scale, and ease of management to reduce treatment costs. Strengthen the maintenance and management of slaughterhouse wastewater treatment stations to ensure their normal operation.

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