Equipment principle:

Due to slaughtersewageThere are a certain amount of large floating objects (such as blood stains, fur, and miscellaneous contaminants) in the slaughter wastewater, so a grid is used to intercept them first to ensure the normal operation of subsequent equipment. Because slaughter wastewater contains large molecular organic compounds such as blood stains and oils, it will be difficult to degrade them directly when entering the aerobic system. Therefore, the grid effluent enters the septic tank. The existing septic tank in the slaughterhouse can achieve certain treatment effects, but the current effluent concentration is still high and carries some oil. In order to reduce the load on subsequent treatment facilities, it is considered to add an oil separation tank at the front end to remove oil. Due to working hours, the drainage cycle of a slaughterhouse is different from other sewage discharge cycles. It mainly discharges at night, so a large regulating pool must be set up to regulate the water quality and quantity to ensure the normal operation of the entire facility and reduce the impact load on subsequent facilities. The sewage is collected by the regulating pool and pumped into the subsequent treatment facilities. After the sewage is treated by the front-end septic tank,sewageIt still contains most of the large molecular organic pollutants, so it needs to be further degraded into small molecular substances to prepare for subsequent aerobic biochemistry. Considering the excessive levels of ammonia nitrogen and total phosphorus in sewage, it is necessary to establish an aerobic anoxic alternating operation environment to achieve the effect of denitrification and phosphorus removal. Here, a hydrolysis acidification tank is set up to reflux the effluent from subsequent aerobic treatment to the hydrolysis acidification tank. After passing through the hydrolysis and acidification tank, the sewage enters the aerobic tank, which is divided into two sections. Its advantage is that in different aerobic sections, microorganisms present spatial distribution according to the environment, which is targeted and has better removal effect. After being treated by various biochemical treatment facilities in the front-end, the organic pollution load is greatly degraded. In order to remove chromaticity and simultaneously consider the reduction of COD, ammonia nitrogen, and total phosphorus, a coagulation sedimentation tank is set up here and targeted chemicals are added. The effluent from the sedimentation tank enters the disinfection tank, and then meets the discharge standards.