DY-214 Community Sewage Treatment and Recycled Water Reuse Training Platform
Release time：2024-06-23 10:01viewed：times
1. Scope of application:
The A/O biochemical treatment process includes two stages: anoxic acidification and contact oxidation. It is suitable for the treatment of domestic and industrial wastewater . The entire treatment system is m*nly composed of a grille, a water tank regulating tank, an aerated grit tank, an acidification tank, a contact oxidation tank, a secondary sedimentation tank, a sludge concentration tank, a fan, a pump, etc.
Its process principle:
the sewage flows into the regulating tank by gravity after removing large particles and fibrous impurities through the grille, and then enters the aerated grit tank and the acidification tank through a pump for acidification and hydrolysis (a stirring device is provided in the tank). This stage m*nly makes the sewage uniform, and uses the characteristics of short generation, strong activity, and easy reproduction and growth of facultative anaerobic bacteria to hydrolyze the macromolecular organic matter that is not easy to degrade into small molecules and soluble compounds, and initially degrade the organic matter. At the same time, denitrification is completed, and nitrogen pollution is finally eliminated.
The contact oxidation tank is a biological treatment device that m*nly uses the biofilm method and the activated sludge method. Through fans and oxygenated aeration, the organic matter in the sewage is fully contacted with the biofilm in the pool, and the adsorption and degradation function of aerobic bacteria is utilized to further degrade small molecules and soluble compounds into carbon dioxide and water; then it enters the secondary sedimentation tank to remove the peeled biofilm and activated sludge, and the water flows into the sand filter column for filtration, and the effluent flows into the clear water tank, which can be pumped out for reuse, and part of the sludge can be returned to the regulating tank.
2. M*n technical indicators and parameters:
1. Ambient temperature: 5℃～40℃
2. Processed water volume: 10～20L/h
3. Sewage retention time in the pool: 8h
4. Secondary sedimentation tank wastewater retention time: 1.5～3.5h
5. Gas-water ratio: 20～40∶
6. Designed inlet and outlet water quality:
Inlet BOD5 180～360mg/L Outlet 18～50 mg/L
Inlet CODCY 360～760mg/L Outlet 30～80 mg/L
Inlet SS 80～160mg/L Outlet 8～20 mg/L
7. Device dimensions: 2200mm×500mm×1600mm,
8. Working power supply: AC220V±10%, 50Hz, single-phase three-wire, power 900W, safety protection: with grounding protection, leakage protection, overcurrent protection,
3. M*n configuration:
1. 1 raw water tank: white PP board material, thickness 10mm, 600×400×500mm, with a dr*n valve installed on the bottom plate to dr*n the water;
2. 1 clean water tank: white PP board material, thickness 10mm, 400×400×500mm, with a dr*n valve installed on the bottom plate to dr*n the water;
3. 1 raw water tank stirring motor , 1 set of 304 st*nless steel stirring paddle; (power 25W, speed 120rpm), (including 1 speed regulator)
4. 1 set of aerated grit chamber, transparent plexiglass material, wall thickness 10mm, 450×350×500mm,
5. Acidification tank, transparent plexiglass material, wall thickness 10mm, 350×300×450mm,
6. Contact oxidation tank, transparent plexiglass material, wall thickness 10mm, 350×350×600mm, with aeration device, including 1 set of peak and nest pipes,
7. Vertical flow secondary sedimentation tank, transparent organic glass material, wall thickness 8mm, Ø 250×400mm;
8. Sludge thickening tank, transparent organic glass material, wall thickness 8mm, Ø 300×500mm;
9. 1 anti-corrosion lifting magnetic water pump, flow rate: 16~19 (L/min), head: 2.7~3.4 (m), power 20W;
10. 1 stirring motor, 1 set of 304 st*nless steel stirring paddle; (power 15W, speed 120rpm),
11. Flow measurement and regulation: 1 rotor flowmeter, (LZS-15, range 6~60L/h)
12. Flow measurement and regulation: 1 gas flowmeter, (LZB-15, range 400~4000L/h)
13. 1 fan, power: 250 W, maximum gas volume: 36L/min, with 1 set of microporous aeration tubes,
14. Experimental table (white 10mm thick PP board),
15. Power supply control system: 1 double-sided matte dense pattern spray-coated electric control box, leakage protector (Delixi brand), voltmeter, lockable button switch, wire pipe, etc.,
16. Matching UPVC connecting pipes and valves (Zhongc* brand).
17. St*nless steel frame experimental table (30mm×30mm st*nless steel square tube, equipped with casters for universal wheels with locking feet), etc.
18. Virtual simulation software for electrical installation of building and intelligent building Based on unity3d design, users can choose different sizes of interactive interfaces according to computer configuration, and can choose six levels of image quality. The model in the software can be rotated 360°, enlarged, reduced, and translated. There are assistant prompts during the use of the software, as follows: A. Wet alarm system 1. System overview: Overview of wet alarm system 2. Equipment recognition: It has the best viewing angle, equipment det*ls (displaying the introduction or parameters of the equipment), exercises (built-in 6 multiple-choice questions, with prompts for correct and wrong choices), schematic diagram (you can enter the equipment from the schematic diagram). The equipment includes: sprinkler, water flow indicator, signal butterfly valve, exhaust valve, fire alarm control, high pressure gauge, high-level water tank, weiya control cabinet, pressure regulating tank, flow switch, terminal water testing device, dr*nage facilities, water pump connector, hydraulic alarm, delay device, wet alarm, butterfly valve, check valve, fire pump, safety pressure regulating valve, fire water tank.
3. Principle display: Display the working principle of the wet alarm system, 3D animation demonstration, 3D model is semi-transparent, and the internal water flow can be seen. Equipped with exercise module (4 multiple-choice questions are built-in, and there are prompts for correct and wrong choices)
4. Design layout: There are multiple-choice questions and calculation questions, each of which is scored, and the correct answer and score are displayed after submission
B. Gas fire extinguishing system
1. System overview: Overview of gas fire extinguishing system
2. Equipment recognition: There are optimal viewing angles, equipment det*ls (displaying the introduction or parameters of the equipment), exercises (8 built-in multiple-choice questions, and there are prompts for correct and wrong choices), and schematic diagrams (you can enter the equipment from the schematic diagram). The equipment includes: nozzles, HFC-227 storage bottles, bottle head valves, heptafluoropropane check valves, high-pressure hoses, gas check valves, safety valves, weighing alarms, electromagnetic starters, selection valves, smoke alarms, and fire alarm controllers.
3. Principle display: Display the working principle of the gas fire extinguishing system, 3D animation demonstrations, and 3D models are semi-transparent, and the internal gas can be seen. Equipped with practice module (built-in 3 multiple-choice questions, with prompts for correct and wrong choices)
4. Design and layout: There are 6 multiple-choice questions, each with scores, and the correct answer and score will be displayed after submission
. C. Escape drill: Teaching in the form of fun games, escape from the burning room within a limited time, and wrong choices will directly enter the score interface.
Wechat scan code follow us
