DY-281 Aeration and Oxygenation Training Platform

Release time：2024-06-24 17:30viewed：times

1. Experimental purpose:
The function of aeration equipment in the activated sludge process is to fully mix *r, activated sludge and pollutants, so that the activated sludge is in a suspended state, promote the transfer of oxygen from the gas phase to the liquid phase, and from the liquid phase to the activated sludge, to ensure that microorganisms have enough oxygen for material metabolism. Since the supply of oxygen is one of the m*n factors to ensure the normal progress of the biochemical treatment process, engineering designers and operation managers often need to determine the total oxygen transfer coefficient KLa through experiments and evaluate the oxygen supply capacity and power efficiency of aeration equipment.
Through this experiment, we hope to achieve the following goals:
1. Master the method of determining the total oxygen transfer coefficient and oxygenation capacity of aeration equipment;
2. Master the method of determining the correction coefficients a and b;
3. Understand the characteristics of various test methods and data collation methods.
2. Experimental principle:
There are two test methods for evaluating the oxygenation capacity of aeration equipment:
1. Test under unstable state, that is, the dissolved oxygen concentration in the water changes during the test, from zero to saturation concentration;
2. Test under stable state, that is, the dissolved oxygen concentration in the water rem*ns unchanged during the test.
     3. The test can be carried out with clean water or under production operation conditions. The basic principles of various methods are introduced below.
3. M*n technical indicators and parameters:
1. Ambient temperature: 5℃～40℃,
2. Water treatment volume: 60L/h
3. Designed inlet and outlet water quality:
Inlet BOD5 150～300mg/L Outlet 15～30 mg/L
   Inlet COD 250～500mg/L Outlet 25～40 mg/L
   Inlet SS 80～150mg/L Outlet 10～15 mg/L
   Inlet pH 6～9 Outlet 6～9
4. Aeration and oxygenation column: Φ200 mm×2000mm
5. Overall size of the device: 1200mm×500mm×2000 mm.
6. Working power supply: AC220V±10%, 50Hz, single-phase three-wire system, power 750W, safety protection: with grounding protection, leakage protection, overcurrent protection
IV. M*n configuration:
1. 1 raw water tank: white PP board material, thickness 10mm, 350×400×500mm, with a dr*n valve installed on the bottom plate to facilitate water dr*nage;
2. 1 set of aeration and oxygenation tower, including 1 set of aeration pipes, 3 copper ball valve sampling ports, organic glass material, wall thickness 8mm, Ø200×2000mm;
3. 1 anti-corrosion lifting magnetic water pump, flow rate: 27~32 (L/min), head: 3.1~4.3 (m) power 30W;
4. 1 *r compressor, power supply: AC220V, power: 550 W, maximum gas volume: 36L/min, gas volume 30L,
5. Flow measurement and regulation: 1 gas flow meter: range 400~4000L/h;
6. Power control system: 1 double-sided matte dense-gr*ned spray-coated electric control box, leakage protector (Delixi brand), voltmeter, lockable button switch, wire pipe, etc.
7. Matching UPVC connecting pipes and valves (Zhongc* brand).
8. St*nless steel frame test bench (30mm×30mm st*nless steel square tube, equipped with casters for universal wheels with locking feet), etc.
9. 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, 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 of which is scored, 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 is equipped with the best viewing angle, equipment det*ls (displaying the introduction or parameters of the equipment), practice (built-in 8 multiple-choice questions, with prompts for correct and incorrect choices), schematic diagram (you can enter the equipment from the schematic diagram). The equipment includes: nozzle, HFC-227 storage bottle, bottle head valve, heptafluoropropane check valve, high-pressure hose, gas check valve, safety valve, weighing alarm, electromagnetic starter, selection valve, smoke alarm, fire alarm controller.
3. Principle demonstration: Demonstrate the working principle of the gas fire extinguishing system, 3D animation demonstration, 3D model is semi-transparent, and the internal gas can be seen. Equipped with practice module (3 built-in multiple-choice questions, with prompts for correct and wrong choices)
4. Design 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, escaping from the burning room within a limited time, and the wrong choice will directly enter the score interface.
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ZR-295 type Aeration and oxygenation capacity measuring device ( motor aeration)	Mn parameters and configuration: Processed water volume: 20L/h, aeration tank Φ350 mm×450 mm, overall dimensions: 500×400×1500mm, power supply 220V, power 300W, configuration: 1 plexiglass aeration barrel, 1 set of aeration impeller and series motor, 1 voltage regulator, 2 sampling ports, 1 electric control box, leakage protection switch, push button switch, connecting pipes and ball valves, stnless steel stand with movable wheels, etc.
ZR-296 type Aeration and oxygenation capacity measuring device (*r compressor aeration)	Mn parameters and configuration: Aeration oxygen column: Φ200 mm×2000mm, device dimensions: 700×500mm×2200mm, power supply 220V, power 400W, configuration: 1 set of plexiglass oxygen tower, or 1 perforated aeration tube, 3 sampling ports, 1 r compressor, 1 gas flow meter, 1 electric control box, leakage protection switch, push button switch, connecting pipes and ball valves, st*nless steel stand with movable wheels, etc.
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