Domestic sewage treatment equipment refers to a relatively independent area composed of one or more functions, such as sanatoriums government schools, commercial centers, and small residential areas, with a sewage discharge of ≤200t/d. Its drainage system is usually not covered by the urban pipeline network, but is independently set up. It is a mature technology and easy to install. The main process of domestic sewage treatment at present is screen regulating tank anoxic aerobic precipitation filtration, as shown in the figure below:
After purification treatment, it meets the first-class A limit requirements in China's "Discharge Standard of Urban Domestic Wast". Aerobic is usually activated sludge and various other aerobic microbial treatment technologies derived from it, but no matter which one, the treatment of excess sludge is an objective problem. This is especially prominent in small sewage treatment stations.
The process of grid anaerobic regulating tank anoxic solidified microorganisms precipitation filtration used by Tangshan Shengshi Environmental Protection Equipment Co., Ltd. has the following characteristics: First, the control system uses an intelligent self-control system with remote early warning function, which not only ensures that the equipment system can meet the first-class A limit requirements in China's "Discharge Standard of Urban Domestic Wewater" for a long time, but also reduces the technical level requirements and labor intensity for the operation and management personnel. Remote management and fault early warning make it possible users to carry out regular maintenance in advance, eliminate fault shutdown, and at the same time, faults can be diagnosed remotely, making up for the technical defects of usersSecond, the application of solidified microorganism technology makes the organic sludge in the whole microbial treatment system fully degraded, and almost no excess sludge is produced which better solves the "big problem" of sludge treatment. At the same time, the deodorizing microorganisms in the solidified microorganisms make the whole no longer produce excessive malodorous gas, saving the cost of this treatment and beautifying the environment. Third, the advantages of the underground sewage treatment equipment are:1) It does not occupy the ground space, and the equipment can be built on the parking lot, greening landscape, etc., which is more conducive to beaut the environment; (2) The equipment is hidden underground, which can better prevent freezing and insulation: the equipment has low noise, good sealing, and good stability.
"Discharge Standard of Urban Wastewater Treatment Plant" GB18918-2002 first-class A limit value
PH value:6~9, COD: 50mg/l, BOD: 10mg/l, SS: 10mg/I, NH3-N: (8) mg/l
