DY-401 garbage fermentation experimental device

Composting technology of organic solid waste is one of the most commonly used solid waste biological conversion technologies and one of the important ways to stabilize and harmlessly treat solid waste.

Through this experiment, we hope to achieve the following goals:

1. Deepen the understanding of aerobic composting of garbage;

2. Understand the various influencing factors and control measures of the aerobic composting process of garbage.

2. Experimental Principle:

   Aerobic composting of garbage is to transform organic waste under aerobic conditions by relying on the action of aerobic microorganisms. The soluble organic matter in organic waste can be directly absorbed by microorganisms through the cell wall and cell membrane of microorganisms, while the insoluble colloidal organic matter is first adsorbed outside the microorganisms, and then decomposed into soluble substances by the extracellular enzymes secreted by microorganisms, and then penetrates into the cells. Microorganisms carry out catabolism and anabolism through their own life activities, oxidizing part of the absorbed organic matter into simple inorganic substances and releasing the energy needed for biological growth and activity; the other part of the organic matter is converted into new cell substances, allowing the microorganisms to reproduce and produce more organisms.

3. Technical indicators and parameters:

1. Ambient temperature: 30℃～80℃,

2. Garbage treatment: 5~10L/h,

3. External diameter of test tank (Ø 350mm×height 500mm)

4. Device dimensions: 1200mm×400mm×1300mm,

5. Power supply 220V 

6. Power: 1000W

4. M*n configuration:

1. One garbage fermentation test tank: the body of the fermentation tank is made of 304 st*nless steel (outer diameter of the test tank: Ø 350mm×height 1000mm), equipped with 2 sampling ports;
2. One set of 304 st*nless steel sieve tray support layer;

3. 1 set of garbage turning device: (equipped with 1 set of 250W speed regulating motor , 1 set of speed regulator, 1 set of 304 st*nless steel agitator) The fermentation tank is equipped with a garbage turning device to evenly stir the garbage;
4. 1 set of 304 st*nless steel heating constant temperature water bath, including accessories: 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 ; 1 heating tube, power 800W,
5. 1 *r pump: power: 20 W, maximum *r volume: 16L/min, with 1 set of microporous aeration tube,

6. Flow measurement and regulation: 1 gas flow meter (LZS-10, range 100~1000L/h)

7. One biogas flow meter,

7. Leachate separation device, 1 *r valve, 1 dr*n valve, 1 spray system;
8. Tabletop (white 10mm thick PP plate), brushed silver two-color plate sign (names of the m*n components of the equipment, to facilitate students to understand the equipment);
9. Power control system: 1 double-sided matte dense pattern spray-coated electric control box, leakage protector (Delixi brand), voltmeter, lockable push button switch, wire tube, etc.

10. Equipped with UPVC connecting pipes and valves.

11. St*nless steel frame test bench (30mm×30mm st*nless steel square tube, with universal casters with fixed feet) etc.

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