What Is a Biogas Storage Membrane?

A biogas storage membrane is a high-performance flexible membrane material specifically engineered for the safe storage, containment, and regulation of biogas produced during anaerobic digestion processes. These membranes are widely used in biogas digesters, gas holders, fermentation tanks, wastewater treatment plants, agricultural biogas projects, and industrial renewable energy systems.

DERFLEX biogas storage membranes are manufactured using reinforced polyester base fabrics coated with advanced polymer formulations such as PVC, PVDF, or specialized gas-barrier coatings. This structure ensures exceptional gas-tightness, mechanical strength, chemical resistance, and long-term durability under continuous outdoor exposure.

As global demand for renewable energy increases, biogas storage membrane systems have become a critical component in modern energy infrastructure, enabling efficient gas collection, pressure regulation, and safe utilization of biogas resources.

Why Choose DERFLEX Biogas Storage Membrane?

1. Specialized Engineering Expertise

DERFLEX has extensive experience in technical coated fabrics and membrane structures for energy, environmental, and industrial applications. Our biogas membranes are developed through continuous research, material optimization, and field validation in diverse climate conditions.

2. High Gas-Tight Performance

Gas impermeability is the core requirement of any biogas membrane. DERFLEX utilizes multi-layer coating technology and optimized polymer formulations to achieve extremely low gas permeability, ensuring minimal methane loss and maximum energy efficiency.

3. Long-Term Outdoor Durability

DERFLEX biogas storage membranes are engineered to withstand prolonged UV exposure, temperature fluctuations, wind loads, and chemical contact, ensuring stable performance throughout the service life of the biogas system.

4. Global Project Supply Experience

DERFLEX has supplied biogas membrane materials to renewable energy projects across Europe, North America, South America, Asia, the Middle East, and Africa, supporting agricultural, municipal, and industrial biogas installations worldwide.

Key Features of DERFLEX Biogas Storage Membrane

• Excellent Gas Tightness: Minimizes methane leakage and maximizes biogas utilization efficiency.
• High Tensile Strength: Reinforced fabric structure resists internal pressure and external loads.
• UV & Weather Resistance: Suitable for long-term outdoor exposure in diverse climates.
• Chemical Resistance: Resistant to hydrogen sulfide (H₂S), ammonia, acids, and moisture.
• Flexible & Weldable: Easy to fabricate, weld, and install on-site.
• Low Maintenance: Reduces operational costs over the system lifecycle.
• Custom Engineering: Designed to meet specific biogas system requirements.

Main Applications of Biogas Storage Membrane

Biogas Digesters

Biogas membranes are used as flexible covers for anaerobic digesters, allowing gas accumulation while maintaining stable internal pressure and protecting the digestion process from environmental interference.

Double Membrane Gas Holders

In double membrane gas holder systems, an inner membrane stores biogas while an outer membrane provides weather protection and structural stability. DERFLEX membranes are ideal for both inner and outer layers.

Agricultural Biogas Plants

Widely applied in livestock farms, manure treatment facilities, and agricultural waste digestion projects, biogas storage membranes enable efficient renewable energy generation from organic waste.

Municipal & Wastewater Treatment

Biogas produced in sewage treatment plants can be safely collected and stored using gas-tight membrane covers, supporting energy recovery and emission reduction goals.

Industrial Organic Waste Processing

Food processing plants, breweries, and industrial organic waste facilities utilize biogas membranes to capture and reuse energy from waste streams.

Technical Specifications (Customizable)

Double Membrane Biogas System Structure

DERFLEX biogas storage membranes are commonly used in double membrane gas holder systems, which consist of:

• Inner Membrane: Directly stores biogas and requires maximum gas-tightness.
• Outer Membrane: Protects the inner membrane from weather and mechanical damage.
• Air Support System: Maintains structural stability and pressure balance.

DERFLEX provides optimized membrane solutions for both layers, ensuring system reliability and long service life.

Customization & OEM Capabilities

DERFLEX offers comprehensive customization and OEM services for biogas storage membranes:

• Custom membrane weight and thickness
• Special gas-barrier formulations
• UV resistance levels based on project lifespan
• Anti-static and anti-microbial treatments
• Fire-retardant compliance
• Custom colors and surface finishes
• Project-based engineering support

Quality Control & Standards

DERFLEX biogas storage membranes are produced under strict quality management systems. Each production batch undergoes comprehensive testing, including:

• Tensile and tear strength testing
• Gas permeability testing
• UV aging simulation
• Weldability and seam strength testing
• Chemical resistance evaluation

Our materials are designed to comply with relevant international standards for membrane structures and renewable energy applications.

Sustainability & Environmental Responsibility

Biogas is a cornerstone of the global renewable energy transition. DERFLEX biogas storage membranes support sustainable development by enabling efficient energy recovery, reducing greenhouse gas emissions, and improving waste management practices.

Our manufacturing processes emphasize environmental responsibility, material efficiency, and long-term durability to minimize environmental impact over the product lifecycle.

Why Biogas Storage Membranes Are Critical for Renewable Energy

Without reliable storage and containment, biogas production cannot be efficiently converted into usable energy. High-quality biogas storage membranes ensure safety, performance stability, and economic viability of renewable energy projects.

DERFLEX membranes provide the technical foundation for long-term, scalable, and sustainable biogas systems worldwide.

About DERFLEX

DERFLEX is a professional manufacturer and global supplier of coated fabrics, industrial membranes, and technical textile solutions. Our products serve agriculture, renewable energy, environmental engineering, infrastructure, and industrial sectors in more than 120+ countries.

Official Website: https://www.derflex.com

Frequently Asked Questions (FAQ)

What is the service life of a biogas storage membrane?

DERFLEX biogas storage membranes are designed for a service life of 10–15 years or more, depending on coating type, UV exposure, and operating conditions.

Is the membrane suitable for methane storage?

Yes. DERFLEX membranes are specifically engineered for methane-containing biogas with extremely low gas permeability.

Can DERFLEX provide membranes for double membrane gas holders?

Absolutely. DERFLEX supplies both inner gas storage membranes and outer protective membranes for double membrane systems.

Are custom specifications available?

Yes. DERFLEX offers full project-based customization including material structure, coating formulation, and performance requirements.