Double-Membrane Biogas Holder for Biological Wastewater Treatment: Stores the

Product Specification

Double-Membrane Biogas Holder for Biological Wastewater Treatment: Stores the Methane Gas Produced During Anaerobic Biological Processes

Biological Wastewater Treatment, particularly anaerobic digestion (AD), is the preferred method for stabilizing high-strength organic wastes, such as those found in municipal sludge and industrial effluent. The fundamental goal of these anaerobic biological processes is twofold: to reduce the volume and pathogen content of the sludge and to generate a valuable energy co-product—methane gas (biogas). For the treatment plant to achieve energy efficiency and environmental compliance, this gas must be reliably captured, securely stored, and buffered against fluctuations before being utilized for heat or power. The storage solution must be safe, cost-effective, and integrated directly with the anaerobic bioreactors.

The Double-Membrane Biogas Holder is the industry standard for this specialized application. It stores the methane gas produced during anaerobic biological processes. Installed either as the flexible roof over the digester or as a separate storage 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, directly contributing to the plant’s energy neutrality and operational sustainability.

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 biological wastewater treatment plants, offering superior containment, pressure regulation, and long-term durability.

Product Advantages for Anaerobic Treatment Systems

Center Enamel’s Double Membrane Biogas Holders are meticulously engineered to maximize the efficiency, safety, and operational control of biological wastewater treatment plants.

Reliable Gas Capture and Storage

The primary function is to provide a reliable, gas-tight seal over the anaerobic reactor, which is crucial for preventing the escape of valuable biogas and odors. This hermetic integrity maximizes the capture rate of the methane gas co-product. The inner membrane's volume dynamically expands and contracts to accommodate the natural volume fluctuations in gas production, acting as an essential buffer that stabilizes the low-pressure supply to utilization equipment.

Safety and Cost-Effectiveness

For large-scale public or industrial utilities, safety and economics are paramount. The double membrane system is highly valued because it operates at a naturally low pressure, making it inherently safe compared to high-pressure metal storage vessels. Furthermore, it is a significantly cost-effective solution when compared to building large, rigid steel gas holders, reducing initial capital investment. Its simple, modular construction also ensures rapid installation and low maintenance requirements, leading to greater operational reliability.

Superior Durability and Chemical Resistance

The robust, double-membrane architecture ensures exceptional structural resilience against both external weather and internal corrosive biogas. The gas produced during biological processes often contains moisture and corrosive elements. The specialized, multi-layered composite fabric is selected for its high durability and resistance to corrosive elements, guaranteeing a long operational lifespan and minimal maintenance, which is critical for continuous operation of a treatment plant.

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 biological wastewater treatment project.

Product Application Areas

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

Biological Wastewater Treatment: Storing the methane gas produced during anaerobic processes for utilization.

Urban and Municipal Sewage Plants: Managing digester gas generated from sewage sludge stabilization.

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

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:

France Biogas Project: We supplied 1 tank with a total capacity of 2,215 cubic meters for a biogas project in France, demonstrating our capacity to deliver high-integrity solutions for European renewable energy markets.

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 sustainable 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 Biological Wastewater Treatment facilities, the Double-Membrane Biogas Holder is the optimal choice for resource recovery. By reliably storing the methane gas produced during anaerobic biological processes, it ensures safe, flexible, and cost-effective energy utilization, allowing treatment plants to reduce their operational footprint and achieve greater energy independence.