Double Membrane Biogas Holder for Anaerobic Reactor Tanks: The Ideal, Flexible Cover and Storage Solution for the Reactor's Gas Product

Double Membrane Biogas Holder for Anaerobic Reactor Tanks: The Ideal, Flexible Cover and Storage Solution for the Reactor's Gas Product

The Anaerobic Reactor Tank is the core vessel in many advanced waste treatment systems, from upflow anaerobic sludge blanket (UASB) reactors to continuously stirred tank reactors (CSTRs). The fundamental function of this reactor is to convert organic feedstock (such as municipal sewage sludge, industrial wastewater, or high-strength organic effluent) into a stabilized residue and a valuable co-product: biogas. For the facility to operate efficiently, this biogas product must be immediately captured and stored in a system that can manage its low pressure and variable production rate. The ideal solution must be flexible, hermetic, and capable of integrating directly with the reactor's structure.

The Double Membrane Biogas Holder is the industry-recognized technology that meets these stringent requirements. It serves as the ideal, flexible cover and storage solution for the reactor's gas product. By replacing a rigid roof, this holder provides a durable, air-supported structure that not only seals the reactor contents but also offers a dynamic, low-pressure reservoir. This integrated approach ensures the complete capture of the gas, while its flexibility manages pressure fluctuations essential for the safe and stable operation of the high-performance anaerobic reactor.

Shijiazhuang Zhengzhong Technology Co., Ltd. (Center Enamel), a global leader in advanced containment solutions, specializes in engineering high-performance storage systems. Our Double Membrane Biogas Holders are state-of-the-art gas holders designed to integrate perfectly with various anaerobic reactor tanks, offering superior gas containment, pressure regulation, and long-term durability.

Product Advantages of the Integrated Reactor Cover

Center Enamel’s Double Membrane Biogas Holders are meticulously engineered for the demanding environment of low-pressure gas storage above high-rate anaerobic reactors. The flexible cover design provides distinct operational and safety advantages.

Integrated Capture and Pressure Regulation

The most significant benefit is the system's ability to act as the integrated flexible cover of the anaerobic reactor tank. This placement ensures maximum gas capture efficiency by collecting the gas instantly as it is produced. The inner membrane's volume dynamically expands and contracts to accommodate the natural fluctuations in biogas production. This acts as a perfect buffer, regulating internal pressure to prevent stress on the reactor structure while ensuring a smooth, stable supply of gas to downstream equipment like flares, generators, or upgrading units.

Superior Structural Integrity and Durability

The double-membrane architecture provides exceptional resilience. The inner membrane securely contains the biogas, while the outer membrane is inflated with air to form a structurally rigid, protective dome. This outer shell shields the inner membrane and the gas beneath from external environmental stresses, including high winds, heavy snow loads, and ultraviolet (UV) radiation. This robust, durable design minimizes wear and tear and corrosion, leading to low maintenance requirements and a long operational lifespan, which is critical for continuous wastewater treatment or energy generation processes.

Enhanced Safety and Operational Simplicity

Operating at a naturally low pressure, the system is inherently safe, minimizing the risks associated with storing flammable gas within the facility. Furthermore, the modular, lightweight nature of the biogas holder ensures simplified, rapid installation onto various types of reactor tanks, significantly reducing construction time and complexity compared to heavier, rigid storage solutions. The external shape of the inflated dome also provides a quick, visible indicator of the stored gas volume for proactive management.

Company Advantages

Center Enamel’s standing as a premier global supplier is built on our deep technical expertise and commitment to quality. As a pioneering manufacturer of Glass-Fused-to-Steel (GFS) tanks in China, our company possesses decades of proven history in high-performance containment solutions. Our advanced production capabilities are backed by more than 20 patents in enameling technology and a dedicated research and development team focused on innovation.

Our dedication to quality is demonstrated through our strict adherence to international standards. Our products and processes conform to the most demanding international benchmarks, including standards for quality management, drinking water safety, and occupational health. These certifications provide an independent and verifiable guarantee of quality, safety, and compliance with the most stringent regulations, which is critical for successful operation in international markets. This commitment, combined with our proven global track record of successful projects in over 100 countries, makes us a reliable and expert partner for any anaerobic reactor or biogas project.

Product Application Areas

Center Enamel's Double Membrane Biogas Holders are essential components across all sectors utilizing anaerobic reactor technology:

Anaerobic Reactor Tanks (UASB, CSTR, etc.): Used for instantaneous capture and buffering of biogas generated from high-rate reactors treating industrial or municipal waste.

Industrial Wastewater and Food Waste Treatment: Capturing and storing biogas generated from high-strength organic effluent to offset high energy consumption.

Agricultural and Livestock Wastewater Treatment: Essential for farms processing manure and agricultural residues, enabling on-site energy generation.

Biomethane and Compressed Biogas (CBG) Plants: Providing the essential intermediary buffer storage before high-pressure purification and compression.

Global Reach and Proven Excellence: Project Cases

Our extensive portfolio of successful containment projects showcases our capability to engineer robust, sealed, and durable solutions—expertise directly applied to our high-performance biogas holders. The following non-fictitious cases demonstrate our global reach and technical excellence:

Shanxi Natural Gas Project: We supplied 2 tanks with a total capacity of 8,926 cubic meters for a natural gas project in Shanxi, China, showcasing our capability in major energy infrastructure.

Anhui Liu'an Food Waste Treatment Project: We provided 1 tank with a total capacity of 804 cubic meters for a food waste treatment facility in Anhui, China, highlighting our role in high-volume waste-to-energy solutions.

Muyuan Group Henan Livestock Wastewater Treatment Project: For a major agricultural client, we supplied 2 tanks with a total capacity of 5,954 cubic meters for a livestock wastewater project, demonstrating our expertise in large-volume, sealed agricultural containment critical for biogas management.

Conclusion

For Anaerobic Reactor Tanks, the Double Membrane Biogas Holder is the optimal, most functional solution. By providing a flexible, durable, and integrated cover and storage system, it ensures the complete capture and effective pressure regulation of the methane-rich fuel. Our systems empower reactor operators to maximize gas output, ensure stable energy utilization, and drive their facilities toward greater sustainability and profitability.