DY-222 Liubeck biological sewage treatment training platform
Release time：2024-06-23 13:00viewed：times
1. Experimental principle and purpose:
The "Lubeck" aeration tank is used to treat the biochemical treatment of phenol-cont*ning wastewater from the gas station, and the activated sludge method is mostly used. Under the action of aeration, the mixed liquid flows in a circular manner in the tank due to the push of the rising *r during aeration; and due to the potential energy of the influent, return sludge and return mixed liquid, the mixed liquid flows in a spiral manner horizontally to the central water collection pipe, and the mixed liquid flows into the secondary sedimentation tank for sedimentation.
The plant has conducted pilot tests, and the test results show that the removal rate of volatile phenols is generally 81% to 93%, the removal rate of COD is generally 48% to 62%, and the removal rate of BOD5 is generally 71% to 90%.
Through this experimental device, it is hoped that the following purposes can be achieved: 1. Master the basic operation process of the
"Lubeck" biological sewage
treatment device; 2. Deepen the understanding of the principle of the experiment;
3. Understand the process flow and technical parameters of the experiment, and improve students' theoretical and practical knowledge.
II. M*n technical indicators and parameters:
1. Ambient temperature: 5℃～40℃
2. Processed water volume: 10～20L/h
3. Vertical flow secondary sedimentation tank: residence time 1.5～2.5h
4. Influent water quality: CODcr 400～800mg/L Effluent: CODcr 40～80mg/L
5. Influent water quality: BOD5 200～400mg/L Effluent: BOD5 15～30mg/L
6. Influent suspended solids: SS 150～200mg/L Effluent: SS 18～30mg/L
7. pH value: 6.5～8.5
8. Device dimensions: 2500mm×550mm×1600mm,
9. Working power supply: AC220V±10%, 50Hz, single-phase three-wire system, power 1500W, safety protection: with grounding protection, leakage protection, overcurrent protection
III. M*n configuration:
1. 1 raw water tank: white PP board material, thickness 10mm, 400×400×500mm, a dr*n valve is installed on the bottom plate to facilitate the dr*nage of water;
2. 1 clean water tank: white PP board material, thickness 10mm, 350×350×400mm, a dr*n valve is installed on the bottom plate to facilitate the dr*nage of water;
3. Equipped with 1 raw water tank stirring motor and 1 set of 304 st*nless steel stirring paddles; (power 25W, speed 120rpm), (including 1 speed regulator)
4. 1 "Lubeck" biological filter, plexiglass material, wall thickness 10mm, 500×350×400mm,
5. 1 vertical flow secondary sedimentation tank, made of transparent organic glass, with a wall thickness of 8mm, Ø300×400mm;
6. 1 disinfection tank, made of transparent organic glass, with a wall thickness of 10mm, 350×250×300mm;
7. 1 water collection tank, made of transparent organic glass, with a wall thickness of 10mm, 300×250×300mm;
8. 1 pyramid sludge thickening tank, made of transparent organic glass, with a wall thickness of 8mm, Ø250×400mm;
9. 2 anti-corrosion lifting magnetic pumps, flow rate: 16~19 (L/min), head: 2.7~3.4 (m), power 20W;
10. 1 *r pump, power: 40 W, maximum *r volume: 16L/min;
11. Flow measurement and regulation: 1 rotor flowmeter (LZS-15, range 6~60L/h)
12. Flow measurement and regulation: 1 gas flow meter (LZB-10, range 100~1000L/h)
13. Power control system: 1 double-sided matte dense spray plastic electric control box, leakage protector (Delixi brand), voltmeter, lockable button switch, wire pipe, etc.
14. Matching UPVC connecting pipes and valves (Zhongc* brand). 15.
St*nless steel frame test bench (30mm×30mm st*nless steel square tube, equipped with casters for universal wheels with locking feet), etc.
16. Virtual simulation software for electrical installation of building and intelligent building Based on unity3d design, users can choose different sizes of interactive interface 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, the contents are as follows: A. Wet alarm system 1. System overview: Overview of wet alarm system 2. Equipment recognition: It is equipped with 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), and schematic diagrams (you can enter the equipment from the schematic diagram). The equipment includes: sprinklers, water flow indicators, signal butterfly valves, exhaust valves, fire alarm controls, high-pressure gauges, high-level water tanks, Wia control cabinets, pressure-stabilizing tanks, flow switches, terminal water testing devices, dr*nage facilities, water pump connectors, hydraulic alarms, time delays, wet alarms, butterfly valves, check valves, fire pumps, safety pressure-stabilizing valves, and fire water tanks. 3. Principle display: Display the working principle of the wet alarm system, 3D animation demonstration, and semi-transparent 3D models , so that the internal water flow can be seen. Equipped with practice module (built-in 4 multiple-choice questions, with prompts for correct and incorrect choices) 4. Design layout: There are multiple-choice questions and calculation questions, each with scores, and the correct answer and score will be displayed after submission B. Gas fire extinguishing system 1. System overview: Overview of gas fire extinguishing system
2. Equipment recognition: It has the best viewing angle, equipment det*ls (displaying the introduction or parameters of the equipment), exercises (8 built-in multiple-choice questions, with prompts for correct and wrong choices), and schematics (you can enter the equipment from the schematics). 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, selector valves, smoke alarms, and fire alarm controllers.
3. Principle display: It shows the working principle of the gas fire extinguishing system, with a three-dimensional animation demonstration and a semi-transparent three-dimensional model, so that the internal gas can be seen. It is equipped with an exercise module (3 built-in multiple-choice questions, with prompts for correct and wrong choices)
4. Design layout: There are 6 multiple-choice questions, each of which is scored. After submission, the correct answer and score will be displayed.
C. Escape drill: Teaching is carried out in the form of fun games. Escape from the burning room within a limited time. If you make a wrong choice, you will directly enter the score interface.
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