Equipment width of 500, artificial timed clearance.
2, regulating equalization pool
As the living area discharged wastewater, water quality, water, pH and other water quality indicators with the discharge point changes and drainage time fluctuations, in order to make the treatment structures and pipelines are not subject to the impact of the peak flow of wastewater or changes in the concentration, the need to set up a regulating pool, to regulate the equalization of the role of the water quality and water quantity.
The smaller effective volume of the regulating tank should be able to accommodate the water quality and water quality changes in a cycle of all the wastewater discharged, according to our conventional design, the design of the regulating retention time of 12 hours, the effective volume of 36 m3. The regulating tank perforated aeration tubes are used for pre-aeration.
Conditioning tank specifications for: L4.0XB3.0XH3.5m
Conditioning tank installed two sewage lifting pumps (1 with a standby), sewage pumps using PLC control, the use of level and time linkage to control the normal operation of the pump.
3, buried integrated wastewater treatment equipment technical description
Buried integrated wastewater treatment equipment adopts steel structure, the total specifications for 8.0 × 2.0 × 2.5. box is installed in the ground under the surface, leaving maintenance manhole. Box composition: hydrolysis acidification pool (A-class pool), secondary biological contact oxidation pool, secondary sedimentation tank, disinfection tank, sludge tank, fan room and other components. Specific unit specifications see below for details.
3.1, A-class biochemical tank
A-class biochemical tank inside the size of 1.5m × 2.0m × 2.5m, the effective depth of 2.0m, hanging biological filler. The filler has a long service life, hanging film, easy to remove the film, so that the state of sewage treatment, in favor of biodegradation. The main process parameters are: HRT = 2.0h.
3.2, the second biological contact oxidation tank
One, two biological contact oxidation tank dimensions of 3.8m × 2.0m × 2.5m.
Pool effective water depth of 2.0m, hanging biological filler. Microporous aerator is used for aeration. The main process parameters are: HRT=5.1h; volumetric load of 0.8KgBOD/m3.d, gas-water ratio of 15:1.
3.3, the second sedimentation tank
The second sedimentation tank is a vertical flow sedimentation tank, taking into account the general performance of the domestic wastewater sludge settling, design of the second sedimentation tank load of 0.80m3/h.m2, the second sedimentation tank size of 1.7m×2.0m×2.5m.
The second sedimentation tank is 1.7m×2.0m×2.5m.
Discharge mode is pumping mud.
3.4, disinfection tank and sludge tank
Disinfection tank according to the specification: "TJ14-74" standard is not less than 0.3 hours, the sewage disinfection time is designed for 0.5 hours. Disinfection using contact dissolution disinfection.
Disinfection pool HRT = 0.5h, effective water depth of 2.0m. Chlorine dissolution control in 15 ~ 30g / m3 or so, specifically by regulating the total number of bacteria in the drainage water to control.
Disinfection tank size is 0.50m×2.00m×2.5m.
Sludge tank size is 0.50m×2.00m×2.5m.
Windmill room size is 1.00m×2.00m×2.5m