DY-280 ABF process active biological filter training platform

Release time：2024-06-24 19:00viewed：times

1. Experimental principle and purpose:
In the process of ABF, a tower filter is set up before the usual activated sludge process. It can be connected in series or in parallel with the aeration tank, but it is m*nly connected in series. There is a lot of activated sludge attached to the surface of the tower filter media, so the filter media is made of polypropylene balls, Ø40~Ø50, with porosity between the balls, good natural ventilation, and it is not easy to clog in the filter bed after the biofilm falls off during aging. In the project, the tower is generally 4~6m high. The design load rate of the tower is 3.2kg/m3・d, and the removal rate is about 65%. The treatment effect is poor in winter, which is related to the water temperature. The oxygen content of the tower outflow is as high as 6~8mg/L (20℃), and the oxygen demand rate of the mixed liquor is also high, which can reach about 30~300mg/L・h depending on the wastewater concentration.
The filter here uses blast aeration (surface aeration can also be used), and the tower is a strong oxygenator. Therefore, ABF can be considered as a composite activated sludge method.
The time for sewage to flow through the filter tank is less than 1 minute, but due to the presence of water attached to the filter sludge layer, the actual residence time of sewage is much longer.
Through the "ABF process" experiment, we hope to achieve the following goals:
1. Master the basic operation process of the "ABF process" of the active biological filter;
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. Primary sedimentation tank: HRT 1～1.5h
4. Mixing tank: HRT 3～4h
5. Aeration tank: HRT 6～8h
6. Secondary sedimentation tank: HRT 2h
7. Influent water quality: CODcr 400～800mg/L Effluent water quality: CODcr 40～80mg/L
8. Influent water quality: BOD5 200～400mg/L Effluent water quality: BOD5 15～30mg/L
9. Influent suspended solids: SS 150～200mg/L Effluent suspended solids: SS 18～30mg/L
10. pH value: 6.5～8.5
11. Device dimensions: 2400mm×500mm×1700mm.,
12. Working power supply: AC220V±10%, 50Hz, single-phase three-wire system, power 800W, 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 dr*n the water;
2. 1 clean water tank: white PP board material, thickness 10mm, 250×400×450mm, a dr*n valve is installed on the bottom plate to dr*n the 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. Primary sedimentation tank: transparent plexiglass material, wall thickness 8mm, Ø250×300mm;
5. Mixing tank: transparent organic glass, wall thickness 8mm, Ø300×350mm;
6. Biological tower filter: transparent organic glass, wall thickness 7mm, Ø150×1200mm; including 1 water distributor
7. Biological aeration tank, transparent organic glass, wall thickness 10mm, 350×300×400mm, with 1 set of microporous aeration pipes;
8. Secondary sedimentation tank: transparent organic glass, wall thickness 5mm, Ø250×300mm; with sludge return pump;
9. 2 anti-corrosion lifting magnetic water pumps, flow rate: 27~32 (L/min), head: 3.1~4.3 (m) power 20W;
10. 1 *r pump, power: 40 W, maximum *r volume: 16L/min,
11. 1 anti-corrosion sludge return pump, flow rate: 16-19 (L/min), head: 2.7-3.4 (m), power 20W;
12. Flow measurement and regulation: 1 water inlet liquid flow meter: range 6-60L/H,
13. Flow measurement and regulation: 1 gas flow meter: range 250-2500L/h,
14. Laboratory table (white 10mm thick PP board),
15. Power 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 laboratory table (30mm×30mm st*nless steel square tube, with casters as universal wheels with locking feet), etc.
18. The virtual simulation software for electrical installation of building and intelligent building
is designed based on unity3d. 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, 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, Wia control cabinet, pressure regulating tank, flow switch, end water test device, dr*nage facilities, water pump connector, hydraulic alarm, delay, wet alarm, butterfly valve, check valve, fire pump, safety pressure regulating valve, fire water tank.
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 a practice module (4 built-in multiple-choice questions, with prompts for correct and incorrect choices)
4. Design layout: There are multiple-choice questions and calculation questions, each with a score, 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 incorrect 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 one-way valves, high-pressure hoses, gas one-way valves, safety valves, weighing alarms, electromagnetic starters, selection 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. The three-dimensional model is semi-transparent, and the internal gas can be seen. Equipped with an exercise module (3 built-in multiple-choice questions, with prompts for correct and incorrect choices)
4. Design layout: There are 6 multiple-choice questions, each of which is scored. The correct answer and score will be displayed after submission.
C. Escape drills: 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.
Similar products:

ZR-335 type
Aerated biological filter

M*n parameters and configuration:
water treatment capacity: 0.5-0.8m3/h, device dimensions: 1100mm×500mm×1700mm, power supply 220V power 400W,
configuration: 1 water distribution tank, 1 water pump, 1 aerated biological filter (with Ø38 round ball filler), 1 *r compressor, 1 rotor flowmeter, 1 gas flowmeter, 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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