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The wastewater first passes through the rotary fine grid and enters the sand settling tank. After the sand settling, the wastewater is lifted and filtered out by a circular mesh filter to remove impurities such as fibers, and then flows into the regulating tank. After the addition of a new mobile pump sludge suction machine, the sludge deposited in the regulating tank is discharged from the tank, and the settled wastewater enters the hydrolysis acidification tank. An underwater pusher is added to the tank, and the wastewater is uniformly treated. At the same time, special high-efficiency biological enzymes are added to the hydrolysis acidification tank to degrade high molecular organic compounds, improve the biodegradability of wastewater, and lay a good foundation for subsequent contact oxidation treatment to meet the Class IV standard for surface water

After hydrolysis and acidification, the wastewater is further elevated to the ultra fast water purification equipment for pre-treatment, removing most of the SS in the wastewater. At the same time, the COD (including difficult to degrade organic matter and some biodegradable organic matter) in the wastewater is significantly reduced, reducing the subsequent treatment load of contact oxidation. Afterwards, the wastewater enters a two-stage contact oxidation tank for biological treatment. In the contact oxidation tank, all the aeration perforated pipes are changed into microporous gas distribution pipes to improve the utilization rate of oxygen. This not only saves energy but also improves the utilization of oxygen by organisms. At the same time, selected microbial strains with efficient pollutant degradation ability are added to the treatment system in the contact oxidation tank, and various operating parameters are optimized, Allowing activated bacteria to rapidly reproduce within the system increases the number of effective microorganisms in the system, changes the population structure of the activated sludge system, and greatly shortens the startup/recovery time

Improved the treatment efficiency of pollutants and the operational stability of the system. Biological activation technology can provide bacteria with efficient decomposition ability for special pollutants or pollutants under special conditions according to the needs of different customers, thereby improving the treatment efficiency of wastewater in a targeted manner. Afterwards, the wastewater enters the biochemical sedimentation tank and coagulation sedimentation, and mechanical stirring is added to the flocculation reaction tank in the coagulation sedimentation tank to improve the flocculation and sedimentation effect. The final effluent basically meets the Class IV standard for surface water. After more than 6 months of operation, the system can effectively remove pollutants and ensure stable and compliant discharge of various indicators

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