The core part of the underground medical wastewater treatment equipment

(1) Grid well, the purpose of setting up: Before the domestic sewage enters the regulating tank, a grid is set up to remove soft entanglements, larger solid particles and floating objects in the domestic sewage, thereby protecting the service life of the continuous working water pump and reducing the working load of the system treatment.

(2) Regulating tank, the purpose of setting up: After the domestic sewage is treated by the grid, it enters the regulating tank to regulate and homogenize the water volume and quality, ensuring the balance and stability of the water volume and quality of the subsequent biochemical treatment system. It also plays a certain role in degrading the organic matter in the sewage, improving the anti-shock performance and treatment effect of the entire system.

(3) The lift pump for the regulating tank is set up for the purpose of: A submersible sewage pump is installed in the regulating tank to lift the evenly distributed and homogeneous sewage to the subsequent treatment stage.

(4) A-level biological treatment tank (anoxic tank), the purpose of setting up medical wastewater treatment equipment: Further mix the sewage, fully utilize the biological elastic fillers in the tank as bacterial carriers, and convert the difficult-to-dissolve organic matter in the sewage into soluble organic matter and hydrolyze the large-molecule organic matter into small-molecule organic matter by means of anaerobic action. To facilitate further oxidation and decomposition in the subsequent stage 0 biological treatment tank, and at the same time, through the reflux of nitrosamine, partial nitrification and denitrification can be carried out by the integrated wastewater treatment equipment under the action of nitrifying bacteria to remove ammonia.

(5) Stage 0 biological treatment tank (biological contact oxidation tank), the purpose of setting up: This tank is the core part of this sewage treatment, divided into two sections. In the first section, under a relatively high organic load, various organic substances in the sewage are removed through the biochemical degradation and adsorption actions jointly participated by a large number of different species of microbial communities attached to the fillers. Significantly reduce the organic matter content in sewage. In the later stage of the medical wastewater treatment equipment, under the condition of a relatively low organic load, through the action of denitrifying bacteria, ammonia in the wastewater is decomposed under the condition of sufficient oxygen, and at the same time, the COD value in the wastewater is reduced to a lower level, thus purifying the wastewater.

(6) Sedimentation tank, set up on a daily basis: It is used for solid-liquid separation to remove the biofilm and floating sludge that have peeled off from the biochemical tank, truly purifying the sewage.

(7) Disinfection tank, the purpose of setting up: The effluent from the secondary sedimentation tank flows into the disinfection tank for disinfection to ensure that the effluent quality meets the hygiene standards and is discharged after passing the inspection.

(8) Sludge tank, the purpose of setting up: The sludge from the secondary sedimentation tank is discharged into the sludge tank at regular intervals for sludge thickening and aerobic digestion. The clear water on top of the sludge is recycled and discharged into the regulating tank for further treatment. The remaining sludge is regularly suctioned and transported away (two to three times a year).

(9) Fan, set purpose: to supply oxygen to the 0-level biochemical tank and regulating tank, stir, lift sludge and facilitate sludge digestion.