Sewage treatment is the process of purifying sewage in order to make it meet the water quality requirements for discharge into a certain body of water or reuse. Sewage treatment is widely used in construction, agriculture, transportation, energy, petrochemicals, environmental protection, cityscape, medical, catering and other fields, but also more and more into the daily life of ordinary people. Specific processes are as follows:
1, wastewater first through the grid, screen flow to the flocculation and sedimentation tank, in order to make the treatment effect is good, in the flocculation and sedimentation tank to add coagulants, so that the suspended solids in the wastewater treatment effect is better, coagulation also play a role in regulating the wastewater, flocculation and precipitation of wastewater flows into the pre-aeration conditioning tank.
2, aeration adjustment pool into the air, play the role of pre-aeration adjustment. Evenly adjusted wastewater is pumped to the first level of floating filler biochemical tank.
3, the biochemical tank is installed in the high oxygenation efficiency of the aeration head, and floating filler, practice has proved that the technology has a high removal efficiency of COD and BOD. A floating filler biochemical tank in the wastewater from the inflow of secondary floating filler biochemical tank, two pools using the same method.
4, two floating filler biochemical tank water flows into the inclined plate sedimentation tank. Add polypropylene honeycomb slant pipe in the pool, can greatly improve the settling efficiency, in addition to high hydraulic load, short retention time, covers an area of small.
5, coagulation sedimentation tank and inclined plate sedimentation tank sedimentation sludge discharged into the sludge thickening tank, and then by the sludge dewatering machinery dewatering.
6. The water discharged from the inclined plate sedimentation tank flows into the clearing tank and is discharged after inspection.