Double Membrane Biogas Holder for Papermaking Wastewater Treatment: Collects and Holds the Biogas from the Digestion of High-Solids, Organic Mill Waste

Double Membrane Biogas Holder for Papermaking Wastewater Treatment: Collects and Holds the Biogas from the Digestion of High-Solids, Organic Mill Waste

Papermaking wastewater treatment facilities face the challenge of managing massive volumes of high-solids, organic mill waste (sludge, fiber fines, and process water). The anaerobic digestion (AD) of this effluent is an effective method for stabilization and, crucially, generates a significant volume of methane-rich biogas. For the mill to maximize energy recovery and ensure strict environmental compliance, the biogas must be reliably and securely collected and held before being utilized for energy production to offset the mill’s substantial energy demands. The storage solution must be integrated, highly efficient at capture, and durable enough to withstand the demanding, corrosive environment of the papermaking industry.

The Double Membrane Biogas Holder is the optimal technology for this industrial application. It collects and holds the biogas from the digestion of high-solids, organic mill waste. Installed either as an integrated flexible roof on the digester or as a compact, free-standing unit, this holder provides a dynamic, hermetic reservoir specifically designed for high gas flows. 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 liability into a core energy asset for the paper mill.

Product Advantages for Industrial Biogas Recovery

Center Enamel’s Double Membrane Biogas Holders are meticulously engineered to handle the substantial and demanding gas output characteristic of papermaking effluent treatment, maximizing the efficiency and safety of these high-load industrial plants.

Integrated Gas Collection and Supply Stability

The system acts as the integrated flexible roof of the digester tank, ensuring maximum gas capture efficiency by collecting the gas instantly. The inner membrane's volume dynamically expands and contracts to accommodate the natural fluctuations in biogas production inherent in large-scale industrial digestion. This acts as a perfect buffer, stabilizing the low pressure and supply of gas to the mill’s utilization equipment (e.g., boilers or gas turbines). This stability is critical for continuous industrial operation, maximizing the use of renewable energy generated from the waste.

Resilience to Corrosive Industrial Gas

Biogas generated from the digestion of high-solids, organic mill waste is typically high in moisture and can contain various corrosive trace elements. The balloon is constructed from specialized, multi-layered composite fabric, which is selected for its exceptional durability and resistance to corrosive elements. This resistance is crucial for the long-term integrity of the gas-tight seal, ensuring reliable operation, minimizing fugitive methane emissions, and reducing maintenance costs in this challenging industrial environment.

High-Volume and Flexible Capacity Management

The vast scale of papermaking operations results in high-volume, continuous biogas production. The holder's design provides a flexible reservoir that can dynamically expand and contract to accommodate these substantial gas flows. This dynamic buffering is essential for ensuring a smooth, stable, and regulated low-pressure supply of gas to high-capacity utilization equipment, protecting the expensive machinery and maximizing energy uptime.

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 industrial biogas project.

Product Application Areas

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

Papermaking Wastewater Treatment: Collects and holds the biogas from the digestion of high-solids, organic mill waste.

Pulp Mill Wastewater Treatment: Stores biogas generated during the anaerobic treatment of paper-making effluent.

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:

Inner Mongolia Xing'an League Bio-natural Gas Project: We supplied 4 tanks with a total capacity of 16,760 cubic meters 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 with a total capacity of 2,911 cubic meters 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 with a total capacity of 17,962 cubic meters for a livestock wastewater project, demonstrating our expertise in large-volume, sealed agricultural containment critical for biogas management.

Conclusion

For Papermaking Wastewater Treatment, the Double Membrane Biogas Holder is the optimal solution for sustainable resource management. By reliably collecting and holding the biogas from the digestion of high-solids, organic mill waste, it ensures the efficient, safe, and continuous utilization of the methane-rich fuel, enabling the mill to achieve energy self-sufficiency and high environmental performance.