Biogas & Anaerobic Digestion Solenoid Valves | ATEX Certified Solutions

Transforming Organic Waste into Renewable Energy

The United Kingdom generates over 16 million tonnes of food waste annually, equating to approximately 251 kg per person each year. This significant volume of organic waste presents an opportunity for sustainable energy production through anaerobic digestion (AD). By processing food waste, agricultural manure, and organic materials in AD plants, biogas—a renewable energy source primarily composed of methane—is produced, reducing reliance on fossil fuels and lowering carbon emissions.

The Anaerobic Digestion Process

Anaerobic digestion involves a series of biological processes where microorganisms break down biodegradable material in the absence of oxygen. This process yields biogas, consisting mainly of methane (CH₄) and carbon dioxide (CO₂), along with trace amounts of hydrogen sulphide (H₂S). Post-digestion, the residual material, known as digestate, can be utilised as a nutrient-rich fertilizer, while the biogas is harnessed for energy applications.

Importance of Specialised Solenoid Valves in Biogas Systems

Handling biogas requires components that can withstand its corrosive and potentially hazardous nature. Solenoid valves play a crucial role in controlling the flow of biogas within AD systems. Key considerations for these valves include:

Material Compatibility: Due to the presence of H₂S, valve components should be made from stainless steel or other corrosion-resistant materials.

Seal Integrity: Seals made from Viton (FKM) are recommended over nitrile for higher H₂S concentrations, ensuring long-term durability.

Pressure Handling: Valves must accommodate varying pressure levels, especially in systems where biogas is compressed for storage or transportation.

Safety Certifications: Compliance with ATEX and EN161 standards is essential for safe operation in potentially explosive environments.

Our Biogas-Compatible Solenoid Valve Offerings

At Solenoid Valve World, we provide a comprehensive range of solenoid valves designed for biogas and anaerobic digestion applications:

Zero Rated Stainless Steel Valves: Ideal for low-pressure systems, featuring Viton seals and ATEX EExmIIT4 certified coils.

High-Pressure Solenoid Valves: Suitable for systems where biogas is compressed up to 600 bar, ensuring reliable control and safety.

ATEX Certified Coils: Available in various sizes, our coils meet stringent safety standards for use in hazardous environments.

Explore our full selection of biogas-compatible solenoid valves here:

Applications of Biogas in Energy Systems

Biogas serves as a versatile energy source, applicable in:

Electricity and Heat Generation: Powering generators and combined heat and power (CHP) systems.

Vehicle Fuel: Upgraded to biomethane, biogas can fuel vehicles, reducing greenhouse gas emissions.

Grid Injection: After purification, biomethane can be injected into the natural gas grid, supplementing conventional gas supplies.

Commitment to Sustainable Energy Solutions

By integrating advanced solenoid valve technology into biogas systems, we support the transition to renewable energy sources. Our products are engineered to meet the specific demands of biogas applications, ensuring safety, efficiency, and compliance with industry standards.

For more information or to discuss your specific requirements, please contact our technical team.