In the pursuit of sustainable agriculture, the efficient management of livestock waste is paramount. As a leading China Cow Dung Anaerobic Digestion Tanks Manufacturer, Shijiazhuang Zhengzhong Technology Co., Ltd. (Center Enamel) provides advanced Double Membrane Roofs designed to transform environmental challenges into renewable energy assets.
A high-performance cover system is the heart of any biogas project. Our double membrane roofs utilize a dual-layer strategy to maximize Methane Capture Efficiency.
● Inner Membrane (Variable Gas Bag): This flexible, gas-tight layer serves as the primary storage volume. It inflates or deflates based on production rates, adapting seamlessly to fluctuating biogas yields.
● Outer Membrane (Protective Shield): Maintained under constant air pressure, this layer protects the inner gas bag from UV radiation, heavy snow, and strong winds (up to 150 km/h).
Google prioritizes "Experience" and "Recency." These benchmarks demonstrate Center Enamel's leadership in cold-climate and large-scale agricultural energy.
This project remains the industry standard for Thermal Insulation for Mesophilic Digestion in extreme environments.
● Configuration: 4 Units of CSTR Digesters, 25.21 x 8.4m (H).
● Total Volume: 16,760 m3.
● Success Factor: The double membrane system maintains stable methane capture even in Inner Mongolia’s arctic temperatures.
A flagship project for high-efficiency UASB treatment for one of China's largest agribusinesses.
● Configuration: 2 Units of UASB Reactors, 12.22 x 15.6m (H).
● Total Volume: 3,656 m3.
● Status: Commissioned in 2020, facilitating 100% resource recovery for on-site energy needs.
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Technical Category | Performance Metric | Primary Benefit |
Inner Membrane Permeability | < 400 cm³/m²·d·bar | Maximized Methane Capture Efficiency |
Coating Type | Specialized PVDF/PVC | Engineered H2S Corrosion Resistance |
Wind Resistance | Up to 150 km/h | Structural integrity in coastal/high-altitude sites |
Temp Range | -30°C to +70°C | Optimal Thermal Insulation for Mesophilic Digestion |
Our roof designs facilitate seamless Biogas Desulfurization Integration. The headspace created between the membrane layers allows for biological desulfurization, reducing the total cost of ownership (TCO) by protecting downstream CHP engines from acidic degradation.
The system acts as a variable-volume gas holder. The inner membrane expands to accommodate production spikes, acting as a pressure buffer. This prevents the activation of emergency flares and ensures a consistent flow to generators.
Thanks to our advanced PVDF/PVC coatings, our membranes offer superior H2S Corrosion Resistance. In typical cow dung digesters, these covers achieve a service life of 15+ years, remaining gas-tight and chemically inert.
Absolutely. One of the primary advantages of our modular design is its compatibility with Glass-Fused-to-Steel (GFS), concrete, or stainless steel tanks. Retrofitting is a cost-effective way to upgrade legacy wastewater plants for energy recovery.
With over 30 years of experience and projects in 100+ countries, Center Enamel is more than a manufacturer; we are an integrated solutions provider.
● Global Compliance: Certified to ISO 9001, NSF61, ISO 28765, and FM.
● Premium Materials: All metal components in contact with biogas are crafted from 316 stainless steel for maximum longevity.
● Technical Expertise: The only GFS and membrane manufacturer in China widely accepted in the USA market for over a decade.
Contact Shijiazhuang Zhengzhong Technology Co., Ltd. today to optimize your livestock waste-to-energy project.
