RTK-BMP Automatic methane potential tester

RTK-BMP Automatic methane potential tester

Biochemical Methane Potential (BMP) refers to the amount of methane gas produced by fermentation of a unit of organic material under anaerobic conditions.

BMP analysis is of great significance for understanding the efficiency and process stability of material fermentation, the scale and process design of biogas engineering, production optimization strategy and biogas engineering income evaluation.

In addition, it is also widely used in research fields such as SMA (methane-producing microbial community activity) and RGP (residual gas production potential of digested sludge), which is an important means to study the fermentation kinetic process and microbial activity characteristics.

Brand: RTK

Product introduction
The RTK BMP Automatic Methane Potential Test system is an analytical device for the management of BMP, which has the function of sample fermentation, collection, analysis and recording. The digestion unit consists of 18 separate reactors with mechanical agitation connected to a measurement host with the same number of channels with data acquisition and automatic recording, allowing users to monitor experiments on multiple groups of materials in real time. Web-based server mode, cross-platform control, and thus create good system stability. Users can easily access data, set it up and manage it on the LAN using a computer or mobile device (mobile phone, tablet, etc.).

Application field


Assess anaerobic biodegradability of feedstock


Evaluate the methanogenic potential of raw materials


Evaluation of methanogenic activity of anaerobic sludge


Used for methanogenic toxicity testing of raw materials


Optimization of anaerobic fermentation process


The important data support of large-scale biogas project feasibility study


Biodegradability of chemicals


Oxygen consumption rate test


Animal rumen anaerobic fermentation gas production test


Anaerobic ammonia oxidation gas production measurement


SMA (Methane-producing microbial activity) and RGP(residual gas production potential of digested sludge) were studie


Technological advantage
Product characteristics
(1) Based on GMC ultra-micro gas measurement technology, the measurement accuracy is high (1.0 mL), which is conducive to detailed research;
(2) Both the volume of CH4 and the volume of biogas (including CO2) can be measured;
(3) The measured gas can be collected nondestructively for further analysis;
(4) The type of reactor can be selected, such as wet reactor, dry reactor;
(5) Equipped with temperature and pressure sensors, the measured gas volume can be converted into the gas volume under the standard state (273.15K, 101.325KPa) in real time, which is convenient for unified analysis;


(6) Nitrogen compensation function, which automatically corrects the overestimation of gas production caused by reactor headspace and nitrogen filling in the early stage of reaction;
(7) Multi-user working mode, different users can log in at the same time, independent management of their own experiments, data is more secure;
(8) Backup power function, when the laboratory encounters emergencies such as power failure, the instrument can save data in time to ensure the continuity of the experiment;
(9) Multi-core processor based on ARM®️ CortexTM core, industrial design, to ensure the best electrical characteristics and anti-interference;
(10) Self-built WEB server to provide cross-platform access. No need to install computer and mobile APP;
(11) The use of Hurricane FPGA (field programmable gate array) to achieve faster response and specialized functions for I/ O (input and output), as well as beyond the DSP (digital signal processor) computing power, faster data acquisition and stronger computing power.


System parameter

Configuration and parameters

(1) Digestive unit
① Number of reactors: 18;
② Reactor: 500 mL (standard), 1000 mL, 2000 mL optional, high borosilicate glass material, support dry reactor;
③ Water bath temperature: room temperature +5-99.9℃, accuracy ±0.15 ℃; Heating power: 2 KW; Internal filling capacity: 25 L;
④ Material mixing: brushless electrode, mechanical mixing, software control, speed 0-200 rpm, mixing rate and cycle can be adjusted.


(2) CO2 absorption unit
① Number of CO2 absorption bottles: 18;
②CO2 absorption bottle volume: 100 mL. 3M NaOH solution and pH indicator (optional), high borosilicate glass material, CO2 absorption efficiency: >98%.


(3) Gas measurement unit
① Principle: GMC ultra micro gas measurement technology;
② Processing capacity: simultaneously or separately measure the volume of gas produced by 18 reactors;
③ Measurement accuracy: 1.0mL.


(4) Control and acquisition software
① Real-time online display of the total gas production and gas production rate curves of each channel;
② Provide friendly interface guidance for users to design experiments;
③ Provide system logs.




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