DY-347 High-concentration organic wastewater treatment training platform
Release time：2024-06-29 16:00viewed：times
1. Experimental principle and purpose:
1. Experimental purpose:
1. Understand the process flow of high-concentration organic wastewater treatment.
2. Deepen the understanding of the basic concepts of the experiment and improve theoretical and practical knowledge. 2.
Experimental principle:
High-concentration organic wastewater is generally treated with an upflow anaerobic sludge reactor. Referred to as UASB bioreactor. This reactor is equipped with a carrier inside, which is a suspended growth type of anaerobic digestion. The sludge layer with a higher sludge concentration at the bottom of the reactor is called a sludge bed, and the sludge layer with a slightly lower sludge concentration at the top of the sludge bed is called a sludge floating layer. The sludge bed and the sludge suspension layer are collectively referred to as the reaction zone.
Under anaerobic conditions, the biogas produced by microbial decomposition of organic matter produces strong agitation during the rising process, which is conducive to the formation and m*ntenance of granular sludge. The wastewater enters the bottom of the reactor evenly, and the sewage passes upward through the sludge bed cont*ning granular sludge or flocculent sludge. Anaerobic reaction occurs during the contact with sludge particles. The reacted mixed liquid flows upward and enters the gas, solid and liquid three-phase separator. The biogas bubbles and the sludge particles attached with biogas bubbles rise to the top of the reactor and reach the bottom of the gas reflection plate, where the biogas bubbles separate from the sludge flocs. The biogas bubbles are collected at the top of the reactor heating water tank and are discharged after being measured by the wet flow meter.
II. M*n technical indicators and parameters:
1. Ambient temperature: 5～40℃
2. Processed water volume: 5L～10L/h
3. Designed inlet and outlet water quality: (taking pharmaceutical high-concentration wastewater as an example)
4. Device dimensions: 1600mm×500mm×2300 mm
5. 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: made of white PP board, thickness 10mm, 300×400×400mm, with a dr*n valve installed on the bottom plate to facilitate the dr*nage of water; 2.
1 clean water tank: made of white PP board, thickness 10mm, 200×400×400mm, with a dr*n valve 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 paddle; (power 15W, speed 120rpm), (including 1 speed regulator)
4. 1 water inlet metering peristaltic pump, flow range: 0.008-460mL/min
5. 1 set of UASB anaerobic column: transparent plexiglass material, wall thickness 8mm, Ø150×2000mm; including accessories: 5 sampling ports, 1 set of st*nless steel heating constant temperature water bath, 1 set of heating constant temperature water jacket (generally m*nt*ned at 35-45 degrees), 1 circulating constant flow water pump (maximum head 10m, rated flow 12L/min, power 90W), 1 set of temperature control system (temperature control accuracy: ±1℃), 1 PT100 temperature sensor
; 6. 1 set of contact oxidation tank: transparent plexiglass material, thickness 10mm, 300×300×550mm; including accessories: 1 set of semi-soft filler, 1 set of microporous aeration tube. 1 liquid flow meter, 1 gas flow meter,
7. 1 radial flow sedimentation tank, made of transparent plexiglass, with a wall thickness of 5mm and a diameter of 300×450mm; including accessories: 1 mechanical scraper, 1 speed regulating motor, 1 speed regulator,
8. 1 *r pump, power: 40 W, maximum gas volume: 16L/min, with 1 set of microporous aeration tubes,
9. 1 biogas flow meter,
10. 1 programmable automatic controller,
11. Experimental table (white 10mm thick PP board),
12. Power control system: 1 double-sided matte dense-gr*ned plastic-sprayed electric control box, leakage protector (Delixi brand), voltmeter, lockable push button switch, wire pipe, etc.,
13. Matching UPVC connecting pipes and valves (Zhongc* brand).
14. St*nless steel frame test bench (30mm×30mm st*nless steel square tube, with casters for universal wheels with locking feet) etc.
15. 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 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 pipe pressure gauge, high-level water tank, weiya control cabinet, pressure regulating tank, flow switch, terminal water testing device, dr*nage facility, water pump connector, hydraulic alarm, delay device, wet alarm, butterfly valve, check valve, fire pump, safety pressure regulating valve, fire water pool. 3. Principle demonstration: Demonstrate 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 practice 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 question 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 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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