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Betel domestic sewage treatment equipment
Process flow of domestic sewage treatment equipment: 1. Grid pool: responsible for intercepting floating miscellaneous goods in sewage to ensure the n
Product details
1. Grid pool: responsible for intercepting floating miscellaneous goods in sewage to ensure the normal operation of subsequent treatment equipment.
2. Regulating tank: used to regulate water quality and quantity. Generally, the capacity of the regulating tank is 6-10 times the processing capacity per hour, and it is lifted to the anoxic tank by a lift pump.
3. Anoxic tank: The anoxic tank is set up for denitrification treatment. The sewage separated by the grid is pumped into the anoxic tank by the sewage lift pump in the regulating tank and mixed with the reflux nitrification liquid in the tank. NZP-II type packing is placed in the anoxic tank as a carrier for denitrifying bacteria to control nitrogen; Phosphorus; The removal effect of sulfides is good, with a residence time of 2 hours, combined with the sludge tank in the previous process to form an A/O treatment process, thereby achieving the purpose of phosphorus and nitrogen removal.
4. Biological contact oxidation tank: It is divided into two stages, with a total biochemical time of 6 hours. The first stage uses NZP-I type packing, which has excellent water flow characteristics. The second stage uses flow carrier packing (Japanese technology), which is more surface building blocks and conducive to microbial growth and treatment. The load capacity reaches 30kg BOD/M3. d, which is more than 7 times that of general soft packing. The biochemical tank adopts a central gallery microporous explosion, and the sewage continuously circulates in the biochemical tank, fully contacting the organisms on the packing to achieve rapid degradation of organic matter.
5. Secondary sedimentation tank: The sewage after biochemical treatment enters the secondary sedimentation tank, which is designed with a surface load of 0.9-1.2M3/M2. h. The secondary sedimentation tank is a lifting adjustable liquid level and a tooth shaped collection tank. The tank has uniform water collection and good effluent effect. The sludge from the secondary sedimentation tank is airlifted to the sludge tank.
6. Disinfection pool: Made according to national standard TJ14-74, the disinfection pool has a residence time of 30 minutes, and the disinfectant used is solid chlorine pills or bleaching powder, or aerospace sterilization stone. (Only QK-DM equipment has a disinfection tank)
7. Sludge tank: The pollutants intercepted by the grid and the sludge from the secondary sedimentation tank both enter the sludge tank, which is equipped with a sludge digestion system. The clear liquid on the sludge tank flows back to the regulating tank.
8. The fan and distribution cabinet are both located in the equipment room. Generally, two fans are installed in the equipment room to operate alternately. When one fan fails, the other can start the equipment on its own and continue to operate; When the sewage is cut off, the fan can automatically stop running to protect the normal growth of organisms.
Characteristics of Domestic Sewage Treatment Equipment:
1. The equipment is a high-strength steel drum shaped overall structure, with high compressive strength, acid and alkali corrosion resistance, aging resistance, and maintenance free characteristics.
2. Filling in P28 nutrient bacteria (Japanese product) in the equipment can supply biological bacteria in the anaerobic tank at temperatures above 5 degrees Celsius, providing sufficient nutrition to improve the effectiveness of sewage decay.
3. Adopting the flow carrier filling technology provided by the Japanese side, the equipment is designed as a module and can be combined according to the amount of wastewater discharged. Small footprint, flexible installation site selection.
4. The equipment is equipped with a microcomputer fully automatic control system, which is easy to operate, easy to manage and maintain, and does not require special supervision.
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