Application of Intelligent Methane Gas Sensor Modules in Biogas Projects of Poultry and Livestock Farms

With rising energy demands and stricter environmental requirements, renewable energy has become a key driver for society and industry. Biomass, as a clean energy source, is increasingly applied in agriculture, especially in poultry and livestock farms.

Modern biomass technologies can convert organic waste from farms, such as manure and wastewater, into biogas through anaerobic digestion, eliminating pollutants and producing combustible gas and organic fertilizer, achieving dual energy and environmental benefits.

Overview of Biomass Biogas Projects

Biogas production and utilization:

• Pollution treatment: anaerobic digestion of manure and wastewater to reduce environmental impact.

• Energy production: generating high-quality biogas for electricity, fuel, or heat use.

• Comprehensive resource use: digested residues are converted into organic fertilizer, promoting waste recycling.

For example, the Mengniu modern farm biogas project processes approximately 800 tons of wastewater and urine daily, producing 8,000–10,000 m³ of biogas per day, generating over 3 million kWh annually and 30,000 tons of organic fertilizer, demonstrating both environmental and energy efficiency.

Safety Risks in Biogas

Biogas primarily contains methane (CH4), a highly flammable gas:

• It can ignite violently when exposed to flames.

• Large leaks may cause explosions.

• It poses significant risks to personnel and property safety.

Therefore, biogas projects must install intelligent methane gas sensor modules to monitor methane concentrations in real time, providing timely alerts to prevent leaks and ensure operational safety.

Features of Nexisense Intelligent Methane Gas Sensor Modules

The Nexisense SGA-400/700 intelligent methane gas sensor modules are standardized and modular products developed for biogas projects and other methane applications.

Core Advantages

• High sensitivity: accurate detection even at low methane concentrations.

• Intelligent signal processing: signal amplification, analysis, and automatic computation.

• Temperature and humidity compensation: three-point full-range correction ensures long-term accuracy.

• Standardized output: 0-5V analog or TTL digital signal compatible with PLC/DCS/DDC/data acquisition systems.

  
  

• Modular design: adaptable to various projects, reducing development costs.

• High-precision calibration: standard gas calibration ensures reliable data.

• Wide application: biogas projects, agricultural energy, drone inspections, automated industrial monitoring.

Application Scenarios and Deployment Strategies

• Placement in critical areas: anaerobic digesters, storage tanks, and pipeline connections.

• Real-time alarms: visual and audible alerts trigger ventilation or shutdown when limits are exceeded.

• Remote data management: integration with higher-level systems for centralized monitoring.

• Periodic maintenance: modular design reduces maintenance effort and ensures long-term data reliability.

Technical Principles

• Imported methane sensor chip: amplifies signals and applies intelligent processing to remove interference.

• Full-range temperature and humidity compensation: ensures accuracy under changing environmental conditions.

• Standard gas calibration: outputs high-precision signals.

• Data upload: directly integrates with PLC, DCS, DDC, or data acquisition systems for remote monitoring and alerts.

Practical Application Cases

• Mengniu modern farm biogas project: produces 8,000–10,000 m³ of biogas daily, SGA-400/700 sensors monitor methane in real time to ensure safe operation.

• Small to medium farms: sensor data integrated into DCS for centralized monitoring and remote alerts, preventing potential explosion risks.

• Research and environmental monitoring: provides precise methane data to optimize energy conversion efficiency in agricultural energy projects.

  
  

FAQ

1. What gases do SGA-400/700 sensors detect? Primarily methane (CH4), adaptable to other combustible gases.

2. Do the sensors require frequent calibration? No, standard gas calibration ensures long-term stability.

3. How is data output? Provides 0-5V analog or TTL digital signals compatible with PLC, DCS, and DDC systems.

4. Which scenarios are suitable? Biogas projects, agricultural energy, wastewater treatment, industrial automation control.

5. Does it support temperature and humidity compensation? Yes, three-point full-range compensation ensures long-term accurate monitoring.

6. Is installation and maintenance complex? No, modular, compact, and easy to install.

7. What are the benefits of application? Real-time methane monitoring, reduced leakage and explosion risk, improved project safety.

8. Is remote monitoring possible? Yes, it integrates with higher-level systems for remote monitoring, data analysis, and alerts.

Conclusion

Biogas projects are an important application of biomass, offering both energy production and environmental benefits. The flammable and explosive nature of methane makes safety monitoring essential. Nexisense SGA-400/700 intelligent methane gas sensor modules provide sensitive, real-time methane monitoring, ensuring safe operation, reducing leakage and explosion risks, while supporting remote data management and automation, delivering reliable and sustainable solutions for agricultural energy projects. Integration with modern industrial control systems enables a balance between energy production, environmental protection, and safety, promoting efficient and safe renewable energy development.