Composting method biodegradation instrument
1. Meet the test requirements of GB/T19277.1-2011 standard;
2. Meet the test requirements of ISO14855.1 standard;
3. It can be used to study the biodegradability of bio-based materials and products;
4. It can be used to detect the biodegradability of composting method;
5. It can be used in other standard experiments to determine the amount of carbon dioxide released under the condition of simulated aerobic composting.
1. Fully meet the test requirements of GB/T 19277.1 standard;
2. Adopt the design method of solid culture and open oxygen supply to simulate the environment with strong oxygen demand;
3. High detection accuracy, 9-channel independent infrared detection, real-time online measurement of carbon dioxide emission;
4. Carbon dioxide concentration and cumulative amount are displayed, which can be derived in the form of charts or curves;
5. The detection range is wide, and the maximum detection limit can reach 10000ppm;
6. Silent design, 9-way independent controllable air supply, sound less than 45db;
7. Water bath temperature control, temperature adjustment accuracy ± 0.1 ℃;
8. Automatic level control, with automatic water make-up design;
9. Cloud platform detection allows real-time online observation of data and curves.
This experimental system simulates the aerobic composting conditions of bio-based materials, and determines their final aerobic decomposition capacity and disintegration degree.
Bio-based materials, under the action of microorganisms, consume oxygen to decompose and produce carbon dioxide, water and other inorganic substances. The generated carbon dioxide is monitored in real time by high-precision infrared sensors. The percentage of the actual carbon dioxide release of the sample and the theoretical carbon dioxide release of the sample is the biodegradation rate.
At the end of the test, it can be used to determine the disintegration degree of the experimental material, and also to determine the mass loss of the experimental material.
1. Oxygen supply system
1.1 Air supply mode: continuous aeration for oxygen supply, built-in air supply pump;
1.2 Air pump control: the air pump is divided into 9 channels, each with an independent switch;
1.3 Gas flow regulation range: 30ml/min - 300ml/min;
1.4 There are 9 mechanical flow meters to adjust the flow rate;
1.5 It has 9 electronic flow meters to collect the flow rate;
2. Reaction system
2.1 Number of channels: 9;
2.2 Temperature control mode: Air bath;
2.3 Set temperature range: room temperature - 90 ℃, step 0.1 ℃;
2.4 Temperature control accuracy: ≤± 0.1 ℃;
2.5 Volume of reaction bottle: ≥ 2000ml;
2.6 Material of reaction bottle: high borosilicate hard glass;
2.7 Pre-carbonization system: yes;
2.8 Condensation system: yes;
3. Detection system
3.1 Detection method: infrared carbon dioxide detection;
3.2 Number of infrared probes: 9
3.3 Display mode: simultaneous dual display of carbon dioxide concentration and total amount;
3.4 Detection range: 0-10000ppm;
3.5 Resolution: 1ppm;
3.6 Data acquisition cycle: up to 1 second, second, copy and hour can be freely selected.
4. Software control system
4.1 Software control system with independent intellectual property rights;
4.2 The software can collect data and generate real-time data curve;
4.3 Bearing system: win7/8/10 and other professional operating systems;
4.4 Data storage mode: it can be stored in real time during the experiment;
4.5 USB interface: 3;
5. Complete machine system
5.1 Power supply: 220V AC;
5.2 Power frequency: 50/60Hz;
5.3 Working humidity:<60%;
5.4 Working temperature: room temperature - 90 ℃;
5.5 Overall power: 4KW;
5.6 Appearance dimension (L × W × H)：1500mm × 900mm × 900mm
5.7 Gross weight: 180KG.
1. 1 host;
2. 9 reaction bottles;
3. 9 decarburization bottles;
4. 9 condensate bottles;
5. 9 dehumidification bottles;
6. 1 set of software;
7. 1 set of connecting hose;
8. 1 set of accompanying documents.
Examples of experiments
This is the experimental result of a certain unit using M9000 compost method biodegradation instrument to test the biodegradability of a sample with reference to the method standard of GB/T19277.1-2011. The test period is 70 days. It can be seen from Figure 1 that the degradation rate of cellulose in 45 days has reached 81.88%, and the degradation rate of cellulose in 70 days has reached 98.18%. At this time, the growth of each experimental group has basically ended, and the curve is flat. The experimental design is shown in the following table:
Table 1 Experimental design
Figure 1 CO2 emission curve