A, buried sewage treatment equipment which
Buried domestic sewage treatment technology refers to the sewage treatment facilities in the main structure buried in the ground or semi-underground sewage treatment technology. Its main features are low noise, no odor, small footprint, less affected by climate, convenient management, high treatment efficiency.
(1) primary sedimentation tank: equipment conditioning tank is generally civil engineering structure, most of the users to build their own, it is mainly sewage will be concentrated with a place, and then lifting pumps will be lifted to the next level of sewage process.
(2) contact oxidation tank: the water from the conditioning tank is elevated to the contact tank for biochemical treatment, with a total residence time of more than 1 hour. Enhanced equipment contact oxidation time up to 6 hours, packing for the novel combination of packing. It is non-clogging and easy to film. Specific surface area of the filler is 160m2/m3. The gas-water ratio of the contact pool is about 12:1.
(3)Sedimentation tank: after biochemical sewage flows to the sedimentation tank, the rising flow rate is O.3-0.4 mm/s. The sludge is lifted to the sludge tank by air. The sludge discharge is lifted to the sludge tank by air.
(4) disinfection tank and disinfection device: disinfection tank according to the norms: TJI474 standard for 30 minutes, if the hospital sewage, disinfection tank can increase the residence time to 1-1.5 hours, the use of solid chlorine tablets in contact with the dissolution of the disinfection method, disinfection device according to the size of the water continuously change the amount of dosage to achieve the goal of fewer out of the less dosed, more out of the water and dosed with more dosage. Other disinfection devices can be prepared separately. (Note: If used for industrial sewage disinfection tank and disinfection device can not)
(5) sludge tank: primary sedimentation tank, the second sedimentation tank of all sludge are lifted to the sludge tank with air for aerobic digestion. The clear liquid from the sludge tank is returned to the contact oxidation tank for reprocessing. There is very little sludge remaining after digestion, and it is cleaned about once every one or two years. Cleaning method can be used suction trucks from the sludge tank inspection hole into the bottom of the sludge, pumping and transportation can be.
(6) fan room, fan: buried sewage treatment equipment fan room is located in the disinfection pool above the import of double sound insulation, air inlet muffler, fan filter, so no noise when running. The fan adopts two sets of L-type Roots blower, which can run automatically and alternately. The operating life of a single blower is about 30,000 hours.
Two, buried sewage treatment to pay attention to what
The first point, start buried sewage treatment equipment to check the circuit, wiring control cabinet line is correct, current, voltage meet the requirements.
The second point, buried sewage treatment equipment pumps using anti-clogging tear type submersible pumps, which two pumps control by the microcomputer by detecting the liquid level in the sewage tank to complete, when the liquid level from low to high to reach the working level when starting the work pump, such as the liquid level continues to rise to the warning level, turn off the work pump, start the fan to check the rotational direction of whether it is correct, can not be reversed.
The third point, when the regulating pool of sewage is less, the liquid level is lower than the pump starting level, the two pumps have stopped working, at this time, in order to make the normal growth of biofilm in the wastewater treatment equipment, the fan is used to start the intermittent start, start for 10 minutes, after half an hour, it will automatically stop running.
The fourth point, sedimentation tank sludge control, solenoid valve air lifting sludge or sludge pumps to lift the sludge, sludge discharge cycle of 8 hours, sludge discharge time of 8 minutes. When the air lifting two wind turbines start at the same time to ensure the supply of gas.
The fifth point, fans and pumps using automatic alternate operation control, alternate switching time of 4 hours.
Sixth point, buried sewage treatment equipment control center in the microcomputer cabinets in accordance with the design of the work program to be completed at once. Manual control through the panel key switch, by manual control of submersible sewage pumps, fans and other open and close.
What are the buried sewage treatment equipment? There are many buried sewage treatment equipment, and more and more innovative, can help people will be fast and good sewage treatment. Buried sewage treatment to pay attention to what? Treatment of sewage must be based on the actual situation of the equipment to operate, as well as operation should pay attention to safety, to avoid sewage overflow.