Double Membrane Roofs for Biogas Storage Tanks: Safely store and contain biogas.

Product Specification

Double Membrane Roofs for Biogas Storage Tanks: Safely store and contain biogas.

Biogas, a powerful and versatile renewable energy source, is generated through the anaerobic digestion of organic waste. Its composition, primarily methane and carbon dioxide, makes it a valuable fuel for electricity generation, heating, and even as a vehicle fuel after purification. However, the production and utilization of biogas necessitate a robust, safe, and efficient storage solution. The inherent flammability of methane and the need to prevent its release into the atmosphere—where it acts as a potent greenhouse gas—make the containment of biogas a critical aspect of any anaerobic digestion project. In the past, traditional rigid storage tanks were the only option, but they were often costly, complex to install, and susceptible to corrosion. A modern, flexible, and highly reliable solution was needed to meet the demands of a growing and diverse biogas industry.

Shijiazhuang Zhengzhong Technology Co., Ltd. (Center Enamel), a global leader in containment solutions, has met this need with its innovative Double Membrane Roofs for Biogas Storage Tanks. These state-of-the-art roofs are specifically engineered to provide a secure, gas-tight environment for the safe storage and containment of biogas. They are a critical component that ensures the integrity of the entire biogas system, maximizing the economic and environmental benefits of renewable energy production. Our double membrane technology is designed to integrate seamlessly with various tank types, including our Glass-Fused-to-Steel (GFS) tanks, providing a complete and highly durable storage solution. This system represents a significant leap forward in biogas storage, offering superior flexibility, enhanced safety, and long-term operational reliability.

Product Advantages

Center Enamel’s Double Membrane Roofs are not a simple cover but a sophisticated, three-layer system designed for high-performance gas containment. The structure consists of an outer membrane, an inner membrane, and a bottom membrane, all working in concert with a series of precision control and safety components. This innovative design offers a multitude of advantages that directly address the core needs of biogas storage.

The primary function of the double membrane system is to ensure exceptional airtightness and prevent the escape of biogas. The inner membrane, made from a specially formulated, corrosion-resistant and highly flexible material, serves as the main storage vessel for the biogas. The outer membrane, which is continuously pressurized with a small amount of air, creates a stable, protective dome over the inner membrane. This pressurized space prevents the inner membrane from being damaged by external factors like wind, rain, and snow. It also creates a dynamic storage environment where the inner membrane can expand and contract in response to the volume of gas, allowing for a consistent, on-demand supply of biogas. This system’s design is a testament to its efficiency and reliability, ensuring that the valuable energy produced is contained and ready for use.

Another key advantage is the enhanced safety and reliability of the system. The roofs are equipped with multiple safety features, including sensitive over- and under-pressure relief systems. These systems automatically adjust to pressure fluctuations within the tank, which are a natural result of gas production and consumption. By preventing the buildup of excessive pressure or the creation of a vacuum, these systems protect the tanks from structural damage, ensuring continuous and safe operation. The materials used in the membranes are chosen for their superior resistance to the corrosive properties of biogas and UV radiation. This durability ensures the system maintains its structural integrity and performance over an extended period, requiring minimal maintenance and offering a cost-effective solution that is built to last in a variety of climates.

Furthermore, the design of our Double Membrane Roofs allows for flexibility and scalability. The modular nature of the system means it can be easily adapted to a wide range of tank sizes and shapes, making it suitable for projects of all scales, from small farm digesters to large industrial biogas plants. The membranes are pre-fabricated in our state-of-the-art facility, ensuring quality control and quick on-site installation, which significantly reduces project timelines and labor costs. This adaptability, combined with the low maintenance requirements, makes our roofs a superior choice for any biogas storage application.

Company Advantages

As a globally recognized leader in bolted tank solutions, Center Enamel brings decades of experience and a deep commitment to excellence to every project. Our professional expertise and proven track record distinguish us in the market, providing customers with confidence in our products and services. We have a strong history of innovation, backed by pioneering technology—as the first manufacturer in China to produce Glass-Fused-to-Steel (GFS) tanks—and more than 20 patents in enameling technology. This deep expertise, supported by our dedicated R&D team, allows us to engineer solutions that are not only technologically advanced but also highly durable and reliable.

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 ISO 9001, NSF/ANSI 61, WRAS, and OSHA. 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 and collaborations with major international corporations, makes us a reliable and expert partner for any biogas storage project. We have a global distribution network and a team of experienced engineers who can provide expert support, from design and manufacturing to installation and after-sales service, ensuring that our products meet the highest standards of quality and performance.

Product Application Areas

Center Enamel's Double Membrane Roofs are a key component in a wide range of industrial and agricultural biogas projects, providing a reliable gas holder for various applications. In anaerobic digesters, the roofs are a core component of systems processing livestock manure and crop residues, effectively sealing the tank and storing biogas produced. This is particularly relevant for farms and agricultural facilities looking to reduce their waste disposal costs and generate their own electricity or heating. The roofs are also widely used in municipal wastewater treatment plants to collect and hold biogas generated during the treatment of sewage sludge. This not only helps manage waste products but also turns them into a valuable energy source that can be used to power the plant, contributing to a more circular economy and reducing operational costs. Additionally, they are integral to facilities for industrial waste treatment, where organic waste from food processing, breweries, and other industries is processed to produce energy. By providing a secure sealed cover and containment for the biogas produced, these roofs help facilities handle their waste responsibly while simultaneously generating a reliable renewable energy source and controlling odors. The versatility of our roofs makes them suitable for a diverse range of applications, from small-scale mini digesters to large, complex industrial biogas plants.

Global Reach and Proven Excellence: Project Cases

As a premier provider of bolted tanks and containment systems, Center Enamel has established a global footprint with numerous successful projects. The following non-fictitious cases, selected from our extensive portfolio, demonstrate our capacity to deliver high-quality biogas solutions for industrial and agricultural waste treatment.

Eswatini Alcohol Wastewater Treatment Project: We supplied 2 tanks with a total capacity of 42,188 cubic meters for an alcohol wastewater treatment project in Eswatini. This project showcases our ability to provide large-scale, robust solutions for industrial fluid management, which includes the capture and storage of biogas as a valuable byproduct. The implementation of our double membrane roofs on these large-scale tanks was crucial for the efficient and safe operation of the facility.

Budweiser Beer Group Mozambique Brewery Wastewater Treatment Project: We partnered with the Budweiser Beer Group in Mozambique to deliver a wastewater treatment solution for their brewery. This project included 11 tanks with a total capacity of 9,437 cubic meters, highlighting our expertise in providing reliable and compliant infrastructure for the food and beverage industry, which often relies on biogas capture from wastewater. Our double membrane roofs provided a perfect gas-tight seal for these tanks, ensuring that the biogas was safely contained and available for reuse.

Inner Mongolia Xing'an League Bio-natural Gas Project: This project in Inner Mongolia utilized Center Enamel's technology with the supply of 4 tanks, providing a total storage capacity of 16,760 cubic meters. This case serves as a powerful example of the scalability of our technology, which can be adapted to treat a variety of organic waste streams, including those from animal sources, and turn them into bio-natural gas, a high-purity fuel. The double membrane roofs were essential for the efficient and safe storage of the raw biogas before it was upgraded.

Conclusion

The secure and efficient storage of biogas is an essential factor for maximizing the benefits of anaerobic digestion. Center Enamel's Double Membrane Roofs for Biogas Storage Tanks offer a technologically advanced, reliable, and cost-effective solution for this critical need. By providing a perfect gas-tight cover and secure holding, these roofs empower plant operators to fully harness this valuable renewable energy source. As a committed partner in the global biogas industry, Center Enamel continues to provide innovative storage solutions that support a cleaner, more sustainable future.