This equipment is generally suitable for environmental science and engineering laboratories, biogas engineering, and energy engineering in research institutes and enterprises; It is an ideal tool for anaerobic fermentation and digestion of methane producing biogas. It can be applied to optimize and screen anaerobic fermentation process parameters, analyze the methane potential of bottom products, and monitor and control various parameters of anaerobic fermentation digestion process online.

1. Configuration:

1.1 One anaerobic control host,

1.2 One set of intelligent control software for anaerobic fermentation,

1.3 Four organic glass anaerobic fermentation tanks (with a capacity of 10L/20L/30L/50L/100L optional)

1.4 Four sets of temperature control modules

1.5 pH detection control module 4 sets

1.6 ORP detection module 4 sets

1.7 EFS module with four channels

1.8 EFSR module with four channels

4 sets of 1.9 speed system

4 sets of feeding systems for 1.10

1.11 Discharge system 4 sets

1.12 CH4 concentration monitoring module 4 sets

4 sets of 1.13 CO2 concentration monitoring modules

1.14 Preprocessing module 4 sets

1 set of 1.15 anaerobic environment module

1.16 Remote transmission module 1 set

24 pieces of 1.17 supplementary gaskets, 248m for silicone tubes 19 # and 18m for 25 #. 8 250ml replenishment bottles, 8 500ml bottles, 8 EFS gas production models, and 8 gas production valves

2. Main technical parameters

2.1 Tank structure: nominal volume of 10L/20L/30L/50L/100L optional, design pressure: 0.2Mpa, working pressure below 0.15Mpa;

Material: high transparent anti-aging organic glass material, initial light transmittance>95%, Rockwell hardness>75 degrees, good surface finish, no burrs, scratches, etc. The tank body and jacket are all welded with organic glass technology, using non-traditional bonding to ensure long-term use without aging or water leakage. All valves are made of sanitary grade stainless steel, with thickened connections and interfaces to ensure thread integrity.

The digestion tank is equipped with standard interfaces such as air inlet, exhaust outlet, jacket upper and lower ports, temperature/PH/ORP probe port, inoculation port, feeding port, sampling port, spare port, etc;

Diameter to height ratio: 1:2 Material ratio: 70% -80%

Jacket: design pressure 0.2Mpa, jacket material: high transparent anti-aging plexiglass material, used for temperature control;

2.2 Temperature control system

2.2.1. Measurement range: 0-150 ℃;

2.2.2. Control range: normal temperature+5 ℃~± 65 ℃;

2.2.3 Control accuracy: ± 0.2 ℃;

2.2.4 Resolution: 0.1 ℃;

2.2.5 Software functions: data curve chart, data report, temperature manual and automatic control modes

2.2.6. Temperature program control, with at least 5 program controls, temperature values and time can be set arbitrarily.

2.3 PH online detection and control system

2.3.1 Control mode: fully automatic control, pH value can be set;

2.3.2. Display range: 0-14PH;

2.3.3. Control range: 2-12PH;

2.3.4 Resolution: 0.01PH;

2.3.5 Control accuracy: ± 0.02PH;

2.3.6 Control content: pH value online detection, PID intelligent control;

2.3.7 Component selection: pH electrode detection of glass gel imported from Switzerland, which can be sterilized in place at high temperature, 121 ℃ -30 minutes. And it is connected with original double shielded signal transmission lines to ensure precise pH control.

2.3.8. Execution mechanism: The microcomputer intelligent PID control system automatically adds acid or alkali to two peristaltic pumps, ensuring that the pH value is controlled within the set range. It can be operated in manual or automatic (real-time automatic+FT mode automatic) control modes.

2.3.9. PH with upper and lower limit over limit alarm function.

2.3.10 Software Functions: Data Curve Chart, Data Report, PH Manual, Automatic Control

★ 2.3.11, pH control mode: Three control modes, manual control/real-time automatic control/FT mode automatic control, among which FT control mode is an indispensable control mode for anaerobic fermentation.

2.3.12. pH program control, at least 5 stages of program control, pH value and time can be set arbitrarily.

2.4 Discharge System

2.4.1. Execution mechanism: Constant flow peristaltic pump flow addition..

2.4.2 Control mode: Automatic material feeding, with three control modes: manual, automatic, and linkage. In automatic control mode, there are three modes: timed, quantitative, and programmed feeding; The linkage mode can be linked with PH and speed, and the direction can be freely selected.

2.5 Feeding System

2.5.1. Execution mechanism: Constant flow peristaltic pump flow addition.

2.5.2 Control mode: Automatic material feeding, with three control modes: manual, automatic, and linkage. In automatic control mode, there are three modes: timed, quantitative, and programmed feeding; The linkage mode can be linked with PH and speed, and the direction can be freely selected.

*2.6 Accumulated gas production detection EFS module

2.6.1 Resolution: 3.5ml

2.6.2. Range: 3.5-5000ml/h, especially with higher accuracy at low ranges

2.6.3. Measurement error: ± 0.01ml

2.6.4 Display mode: 15 inch LCD color touch screen automatic display

2.6.5. Size: 320 * 280 * 200mm

2.6.6. Detection method: Fully automatic digital detection

*2.7 Instantaneous Gas Production Rate EFSR Module

2.7.1. Detection range: 0~10L/min, especially with higher accuracy in low range

2.7.2 Resolution: 0.01ml/min

2.7.3. Detection accuracy: ± 0.1% (full scale)

2.7.4 Display mode: 15 inch LCD color touch screen automatic display

2.7.5. Size: 320 * 280 * 200mm

2.7.6. Detection method: Fully automatic digital detection

2.8 Speed Control System

Imported servo motors and drivers, with a speed range of 50-1000rpm ± 1% and stepless variable frequency speed regulation. Mixing is noiseless, does not generate heat, and does not deform after long-term operation. Fermentation specific sealing ensures no gas leakage during long-term fermentation and guarantees experimental safety. The unique detachable mixing method has a uniform mixing effect on kitchen sludge, straw manure with low to medium high solid content.

2.9 Gas production component detection module

2.9.1 Gas production component detection: CH4/CO2

2.9.2 Measurement range: CH4 0-100% vol, accuracy ≤ 3% FS, resolution CH4:0.01%; CO2 range 0-100% vol, accuracy ≤ 3% FS, resolution CO2:0.01%, automatic calibration, instrument built-in automatic zeroing device;

★ 2.9.3. Each channel is equipped with a reliable preprocessing module, which should be installed in an observable and easily replaceable position. The preprocessing module ensures the accuracy of gas production detection results and replaceable indicators. The deviation of the coefficient of variation for 5 repeated sample measurements should not exceed 1%. Each set of instruments should be equipped with sufficient replaceable pre-processing modules, ensuring the feasibility of regeneration.

2.10 Anaerobic Environment Simulation Module

2.10.1 Anaerobic gas regulation: 0-10L/min, adjustable pressure from 0-0.4Mpa

2.10.2. Aseptic filtration: 0.01um sterile filtration

2.11 MC-BIO8000 lower computer fermentation process control system

2.11.1 15 "widescreen color LCD touch screen, programmable controller, one controller can simultaneously detect and control the corresponding parameters of 4 anaerobic fermentation tanks;

2.11.2 Function description of on-site control system:

★ 1) It can adjust the stirring speed, temperature pH、ORP、EFS、EFSR、CH4、CO2、 Detection and control of anaerobic environment, feed and discharge, especially for accurate detection of EFS and EFSR, as well as background volume, can be corrected and controlled in the software engineer interface.

2) The software comes with an upper computer software and a mobile APP for remote control. Users can remotely monitor and control operating parameters on their office computer through the upper computer software; Users can also remotely monitor and control system operating parameters at any location and time through a mobile app,

3) The parameters of each detection and control circuit can be manually set and corrected online on the screen, and the operation has password protection function.

4) The adjustment method is PID, which can meet different control components and control performance, and can achieve manual/automatic disturbance free switching.

5) All kinds of monitoring data can be displayed and recorded in real-time, with display methods including trend lines and charts.

6) The data storage time can be changed arbitrarily, and customers can choose 1 minute/5 minutes/10 minutes/30 minutes, etc

7) Data recording: supports data report storage and export; Historical curve.