Double Membrane Biogas Holder for a Municipal Sewage Treatment Plant: Stores Biogas Produced from Sewage Sludge Digestion for Energy Reuse

Double Membrane Biogas Holder for a Municipal Sewage Treatment Plant: Stores Biogas Produced from Sewage Sludge Digestion for Energy Reuse

The function of a Municipal Sewage Treatment Plant is vital for public health and environmental protection. A critical process within these plants is the stabilization of sewage sludge via anaerobic digestion (AD). This stabilization process yields a high volume of methane-rich biogas as a valuable energy co-product. For the plant to transition toward energy neutrality and maximize resource recovery, the biogas must be reliably and securely stored and buffered against production fluctuations before being utilized for energy reuse (e.g., heating the digesters, powering on-site generators, or feeding into the grid). This requires a highly reliable, flexible, and durable storage solution.

The Double Membrane Biogas Holder is the optimal technology for this public infrastructure application. It stores biogas produced from sewage sludge digestion for energy reuse. Installed either as an integrated flexible roof on the digester or as a compact, free-standing unit , this holder provides a dynamic, hermetic reservoir. This system ensures every cubic meter of gas is captured, pressure fluctuations are safely managed, and a stable, continuous supply is maintained for downstream utilization, turning a waste product into a core energy asset for the municipality.

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 seamlessly within the infrastructure of a municipal sewage treatment plant, offering superior containment, pressure regulation, and long-term durability.

Product Advantages for Municipal Biogas Systems

Center Enamel’s Double Membrane Biogas Holders are meticulously engineered to maximize the efficiency, safety, and operational control of large-scale, continuous municipal biogas production.

Reliable Gas Buffer for Continuous Energy Reuse

Municipal plants require continuous and reliable energy reuse to maintain operations. The balloon's design provides a flexible and dynamic gas reserve capacity that can dynamically expand and contract to accommodate the natural volume fluctuations in biogas production. This dynamic buffering is essential for regulating the low pressure of the gas, preventing system instability, and ensuring a smooth, constant flow to the utilization equipment. This stability is critical for maximizing the internal energy offset of the plant.

Environmental Compliance and Odor Control

The system provides a crucial hermetic seal over the digester. This is paramount for fugitive emission control (preventing the release of methane) and for significantly reducing odor emissions common with sewage sludge digestion, which is a major public concern. The gas-tight integrity ensures compliance with strict environmental regulations and improves the facility's overall environmental performance.

Support for Aluminum Dome Roofs

Where maximum corrosion resistance and structural integrity are required, the Double Membrane Holder can be installed on or adjacent to a digester tank protected by an Aluminum Dome Roof . While the membrane system provides the flexible gas-tight envelope, the aluminum dome offers superior long-term corrosion protection and structural support for the entire digester tank structure, enhancing overall system durability.

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 municipal biogas project.

Product Application Areas

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

Municipal Sewage Treatment Plant: Stores biogas produced from sewage sludge digestion for energy reuse.

Urban/Municipal Wastewater Treatment: General solution for storing and buffering collected digester gas volumes.

Industrial Biogas Plants: Offers high-volume, flexible storage for efficient industrial energy production.

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:

Inner Mongolia Xing'an League Bio-natural Gas Project: We supplied 4 tanks for a large-scale bio-natural gas project in Inner Mongolia, showcasing our capability in major energy recovery infrastructure.

Shandong Liaocheng Food Waste Treatment Project: We provided 1 tank for a food waste treatment facility in Shandong, China, highlighting our role in high-volume waste-to-energy solutions.

Muyuan Group Suining 4th Farm Livestock Wastewater Project: For a major agricultural client, we supplied 2 tanks for a livestock wastewater project, demonstrating our expertise in large-volume, sealed agricultural containment critical for biogas management.

Conclusion

For a Municipal Sewage Treatment Plant, the Double Membrane Biogas Holder is the optimal solution for achieving energy efficiency and environmental excellence. By reliably storing biogas produced from sewage sludge digestion for energy reuse, it ensures the safe, continuous utilization of the methane-rich fuel, enabling the plant to minimize operational costs and drive toward energy self-sufficiency.