Buried sewage treatment equipment is usually referred to as integrated A/O sewage treatment equipment. Living sewage, breeding sewage, slaughterhouse sewage are suitable for the use of A/O process.
A/O process
AO process is a more commonly used process for sewage treatment.
Process flow: catchment basin + regulating pool + anoxic pool + aerobic pool + sedimentation tank + clean water tank, of which the catchment basin and regulating pool is the pretreatment stage. The anoxic pool (i.e. A pool) and aerobic pool (O pool) are the main treatment process sections of the whole process section.
1, the catchment basin is the sewage precipitation of large particles of debris and to remove the structure, the upper layer of clear liquid into the regulator.
2, catchment pond clear liquid into the regulating pool, sewage impurities in the further precipitation, regulating pool is in order to equalize the quality and quantity, regulating the amount of water and water quality, reduce the uneven amount of water to the impact of the equipment.
3, anaerobic pool using partially oxygenated microorganisms and biofilm to degrade organic matter in sewage. General application, often in the anaerobic pool to add an anoxic pool, can significantly improve the activity of anaerobic bacteria, enhance the sewage purification capacity.
4, aerobic pool is through the aeration disk and other drum into the air, suitable for cultivation and domestication of aerobic microbial growth and reproduction, so as to deal with the pollutants in the water of the structure.?
5, aerobic tank supernatant overflow to the second sedimentation tank, add disinfectant after discharge.
6, in each of the above treatment steps produced by the precipitated particulate matter, are required to go through the sludge press, dewatering, the formation of mud cake. It is transported out by closed containers and landfilled after harmless treatment.
The above is the A/O process flow of sewage treatment, hope to help you, welcome to adopt the praise plus attention.