MSBBR wastewater treatment system and wastewater treatment process applying system
A sewage treatment system and sewage treatment technology, applied in the direction of biological water/sewage treatment, light water/sewage treatment, neutralization water/sewage treatment, etc., can solve the problem of large area occupied by the process, high investment and operation costs, and inability to continuously enter and exit Water and other problems, to achieve the effect of less mechanical and electrical equipment, shorten the residence time, and less process structures
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Embodiment 1
[0053] The MSBBR sewage treatment system of the present invention is composed of three parts: the outer wall of the tank 1, the reaction zone and the equipment zone 3; the reaction zone includes a biological reaction zone 21 and a sedimentation zone 22, the biological reaction zone 21 is arranged in the middle of the pool body, and the biological reaction zone 21 is peripheral The sedimentation area 22 is set, and the biological reaction area 21 and the sedimentation area 22 are connected by drainage slits 5; the aeration device 23 and the sludge collection pipe 4 are arranged at the bottom of the biological reaction area 21; the sedimentation area 22 includes a three-phase separation device 221 and vertical flow sedimentation device 222, and the three-phase separation device 221 is set in the middle of the sedimentation zone 22, and the vertical flow sedimentation device 222 is set in the upper part of the sedimentation zone.
[0054] In the biological reaction zone 21, a poro...
Embodiment 2
[0063] Based on the MSBBR sewage treatment system in the first embodiment, a complete sewage treatment process is formed, and the sewage treatment process comprises the following steps:
[0064] (1) Domestic sewage with a COD of 350-500mg / L and a BOD of 150-250mg / L is collected through pipelines, and suspended solids with a diameter greater than 3mm are removed through a grid;
[0065] (2) The domestic sewage treated by the grid flows into the regulating tank by itself, and the water quality and quantity are balanced to make the pH 6;
[0066] (3) Pump the adjusted domestic sewage into the MSBBR sewage treatment system to fully mix the domestic sewage with the activated sludge and polymer biological filler in the biological reaction zone of the MSBBR sewage treatment system, and adjust the exposure ratio of the biological reaction zone to 4:3, carry out anaerobic, facultative and aerobic treatment in a cycle to obtain supernatant and sludge; When the supernatant reaches the r...
Embodiment 3
[0073] Based on the MSBBR sewage treatment system in the first embodiment, a complete sewage treatment process is formed, and the sewage treatment process comprises the following steps:
[0074] (1) Domestic sewage with a COD of 350-500mg / L and a BOD of 150-250mg / L is collected through pipelines, and suspended solids are removed through grids;
[0075] (2) The domestic sewage treated by the grid flows into the regulating tank by itself, and the water quality and quantity are balanced to make the pH 9;
[0076] (3) Pump the adjusted domestic sewage into the MSBBR sewage treatment system to fully mix the domestic sewage with the activated sludge and polymer biological filler in the biological reaction zone of the MSBBR sewage treatment system, and adjust the exposure ratio of the biological reaction zone to 8:3, carry out anaerobic, facultative and aerobic treatment in a cycle to obtain supernatant and sludge; When the supernatant reaches the reuse or discharge standard, it is ...
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