Sewage treatment method and system
A sewage treatment method and technology of sewage treatment system, applied in water/sewage treatment, biological water/sewage treatment, water/sewage treatment equipment, etc., can solve complex activated sludge treatment problems, difficult biodegradation, and organic matter removal rate low problems, to maintain the degradation effect, reduce the difficulty and processing costs, and reduce the investment in land acquisition costs
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[0033] Embodiment 1 of the present invention: a sewage treatment method, including the following steps:
[0034] S01: Pre-treat sewage, pass the sewage through a primary pretreatment system to remove floating and suspended matter;
[0035] S02: Pass the sewage treated in step S01 into the secondary reaction system, and pass through the anoxic section and the aerobic section in turn, so that the average residence time of the sewage in the secondary reaction system is 8-14 hours. The oxygen section is paved with emergent plants and artificial fillers, so that microorganisms attached to the surface of emergent plants and artificial fillers are used to degrade the main pollutants in sewage, and the growth of emergent plants themselves to absorb nutrients such as nitrogen and phosphorus in the sewage Enhance the effect of pollutant removal; set up a sun shed above the reaction tank to ensure the normal operation of the sewage treatment system and plants in winter; pass the effluent part...
Example Embodiment
[0038] Embodiment 2 of the present invention: a sewage treatment method, including the following steps:
[0039] S01: Pre-treat sewage, pass the sewage through a primary pretreatment system to remove floating and suspended matter;
[0040] S02: Pass the sewage treated in step S01 into the secondary reaction system, and pass through the anoxic section and the aerobic section in turn, so that the average residence time of the sewage in the secondary reaction system is 8-14 hours. The oxygen section is paved with emergent plants and artificial fillers, so that microorganisms attached to the surfaces of emergent plants and artificial fillers are used to degrade the main pollutants in sewage, and the growth of emergent plants themselves to absorb nutrients such as nitrogen and phosphorus in the sewage. Strengthen the pollutant removal effect. By setting up a sun shed above the reaction tank, the normal operation of the sewage treatment system and plants in winter is ensured; the efflue...
Example Embodiment
[0043] Embodiment 3 of the present invention: a sewage treatment system, including a pretreatment device 1, a biochemical reaction device 2, a deep disinfection device 3, and a sludge treatment device 14. The pretreatment device 1 is connected to the biochemical reaction device 2, and the biochemical reaction device 2 Connected to the sludge treatment device 14 and the deep disinfection device 3 respectively. The biochemical reaction device 2 includes an anoxic reaction tank 4, an aerobic reaction tank 5, a coagulation tank 19, a flocculation tank 17, a secondary settling tank 13, a filter tank 15, and a The aerobic system 18, the anoxic reaction tank 4 is connected to the adjacent aerobic reaction tank 5, the anoxic reaction tank 4 is connected to the pretreatment device 1 through the water inlet pipe 6, and the aerobic reaction tank 5 is connected to the coagulation tank sequentially through the water pipe 7 19. Flocculation tank 17 is connected, flocculation tank 17 is connec...
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