Center Enamel: Delivering Comprehensive Turnkey/EPC Solutions for Sustainable Pig Farms
The modern livestock industry is currently undergoing a radical transition toward environmental accountability and resource circularity. As global protein demand continues to rise, the management of industrial swine discharge has moved beyond simple regulatory compliance to become a primary pillar of corporate sustainability and operational resilience. Central to this evolution is the implementation of comprehensive Turnkey/EPC Solutions for Pig Farms—integrated systems that transform high-strength manure slurry into a reliable source of renewable energy and stabilized organic fertilizer. However, the successful execution of such projects requires a partner with deep expertise in engineering, procurement, and construction to manage the complex biological and chemical challenges inherent in swine waste.

Shijiazhuang Zhengzhong Technology Co., Ltd, operating under the world-renowned brand Center Enamel, stands as a global pioneer in providing the specialized engineering infrastructure necessary for this transition. With over thirty years of innovation and a project footprint extending to more than one hundred countries, we provide the essential containment and processing solutions that make high-efficiency biological recovery a reality. Our expertise lies in the integration of Glass-Fused-to-Steel (GFS) technology, high-performance Epoxy Coated Tanks, and advanced Double Membrane Roofs, creating a cohesive system designed to maximize energy yields from Pig Farms while providing a maintenance-free path to carbon neutrality.
Technical Foundation of Waste Management for Pig Farms
To deliver effective Turnkey/EPC Solutions, it is essential to understand the specific chemical and physical characteristics of the feedstock. Pig slurry is a high-strength organic stream that requires precise environmental control to unlock its full potential as an energy asset.
1. High-Efficiency Anaerobic Digestion
Swine manure is a rich source of biodegradable organic matter. In a controlled anaerobic environment, these carbon-based compounds are metabolized by specialized microorganisms to produce methane-rich biogas. This gas represents a versatile fuel source that can generate electricity for ventilation systems or provide process heat for farrowing houses. Professional Turnkey/EPC Solutions ensure that the biological reactor is optimized for the specific flow rates and solids concentrations typically found on modern Pig Farms.
2. Ammonia and Nitrogen Stabilization
A primary engineering focus in swine waste projects is the management of nitrogen. During the digestion process, organic nitrogen is converted into ammonia. If concentrations exceed certain thresholds, it can inhibit the sensitive bacteria required for methane production. Center Enamel’s EPC services integrate specialized process designs—including dilution strategies and advanced mixing—to ensure the reactor remains stable, preventing process failure even during peak production cycles.
Core Technology: The Double Membrane Roof System
In the energy recovery process for Pig Farms, the efficient capture, storage, and pressure regulation of the produced biogas are the most critical factors for achieving a positive return on investment. Center Enamel’s Double Membrane Roofs are engineered as a dynamic, integrated gas management solution.
1. Advanced Structural Mechanics and Dual-Layer Architecture
The Double Membrane Roof is a sophisticated pressurized system consisting of two high-specification membranes working in synergy:
The Inner Membrane: This layer serves as the primary seal for the anaerobic digestion process. It is in direct contact with the biogas produced from the pig slurry. Its flexible nature allows it to expand and contract freely based on real-time gas volume. This variable-volume functionality ensures that the reactor maintains a consistent internal pressure, preventing mechanical stress on the tank structure.
The Outer Membrane: This layer is constantly pressurized by an automated, high-performance blower system. It forms a rigid, permanent aerodynamic dome that protects the inner gas-storage membrane from external environmental forces, such as wind pressure, heavy rainfall, and snow accumulation.
2. Material Science and Chemical Resistance
The gas derived from swine manure is notoriously aggressive due to high levels of moisture and sulfur-related vapors. Our membranes are manufactured from high-tenacity polyester fabrics with specialized multi-layer coatings:
Gas Permeability Resistance: The inner membrane features a specialized coating that minimizes gas loss, ensuring every cubic meter of renewable energy is captured.
Industrial Corrosion Protection: The fabric is chemically inert, resisting the acidic vapors common in agricultural anaerobic environments. This prevents the hardening or cracking of the material over time.
Environmental Durability: The outer membrane is UV-stabilized and features a self-cleaning surface, ensuring the roof maintains its structural integrity across diverse global climates.
3. EPC Integration: Intelligent Safety and Pressure Control
As part of our Turnkey/EPC Solutions, Center Enamel integrates a comprehensive suite of monitoring devices:
Automated Air Management: Sensors monitor the air pressure between the membranes, and the blower system adjusts automatically to maintain optimal tension.
Volume Monitoring: High-precision sensors track the height of the inner membrane, providing real-time data on gas storage levels to the farm’s management team.
Multi-Stage Safety Relief: Integrated safety valves ensure that any unexpected pressure spikes are managed safely, protecting both the roof and the reactor from mechanical failure.
Containment Infrastructure: GFS and Epoxy Coated Tank Solutions
A successful waste management system for Pig Farms requires containment that can handle the aggressive nature of organic acids and the physical demands of livestock waste.
1. Glass-Fused-to-Steel (GFS) Technology: The Premier Choice
Our flagship GFS tanks are the global benchmark for the core anaerobic reactor. By fusing high-tech glass enamel to specialized steel at temperatures exceeding eight hundred degrees, we create a material that combines the strength of steel with the chemical inertness of glass.
Superior Chemical Resistance: The glass interior is completely impervious to the organic acids and corrosive gases generated during digestion.
Rapid Modular Construction: The bolted design allows for significantly faster installation times compared to traditional concrete, which is vital for active Pig Farms looking to minimize construction footprints.
2. Epoxy Coated Tanks: High-Performance Infrastructure
As a critical part of our infrastructure portfolio, Center Enamel’s Epoxy Coated Tanks provide an excellent solution for various stages of the treatment train.
Advanced Coating Technology: Our epoxy tanks utilize a high-specification electrostatic powder coating process. This results in a smooth, durable finish that provides excellent resistance against the wide range of fatty acids found in swine waste.
Versatile Application: These tanks are ideal for equalization, storage of liquid digestate, or as pre-treatment vessels. They offer a cost-effective yet highly durable alternative where high corrosion resistance is essential.
Quality and Reliability: Every tank is manufactured under strict factory-controlled conditions to ensure consistent coating thickness and superior bond strength.
3. Aluminum Dome Roofs: Efficient Secondary Containment
For the storage of treated liquid digestate where gas capture is not the primary requirement, Center Enamel offers specialized Aluminum Dome Roofs (铝穹顶盖). These self-supporting geodesic structures are used for odor control and to prevent rainwater from diluting the nutrient-rich organic fertilizer. Constructed from high-strength aluminum alloy, they are naturally resistant to corrosion and provide a maintenance-free solution for secondary storage stages on Pig Farms.
Sustainability and Economic ROI for Swine Producers
Implementing advanced Turnkey/EPC Solutions through Center Enamel’s services is a strategic economic decision for modern Pig Farms:
Energy Autonomy: By generating power on-site, producers can hedge against fluctuating energy prices and secure their energy future for climate control and feeding systems.
Odour Control and Community Relations: Anaerobic digestion breaks down the volatile organic compounds responsible for the strong smells associated with swine manure, significantly improving the farm's environmental profile.
Nutrient Valorization: The digestate remaining after the process is a stabilized, nutrient-rich organic fertilizer that is superior to raw manure, reducing the farm's reliance on expensive chemical fertilizers.
Global Project Excellence: Center Enamel in Action
Our expertise in providing containment for complex agricultural waste is proven through successful installations:
Shandong Heze Biogas Project This major regional initiative utilized 3 units of our high-performance GFS tanks. The project successfully transforms concentrated organic residues into a stable energy stream, demonstrating the reliability of our integrated gas storage systems in industrial-scale operations.
Inner Mongolia Hinggan League Bio-Natural Gas Project In a region characterized by extreme temperature fluctuations, this installation integrated 4 units of our bolted steel tanks. These vessels and their Double Membrane Roofs provide the stable environment necessary for high-efficiency gas production, proving the resilience of our engineering against extreme snow loads.
Jiangsu Xuzhou Biogas Project This project involved the deployment of 4 units of our advanced containment technology. It serves as a model for how professional Turnkey/EPC Solutions, featuring GFS and high-durability coatings, can be used to rapidly build essential infrastructure for modern energy recovery.
Leading the Future of Sustainable Pig Farms
The implementation of advanced Turnkey/EPC Solutions represents a transformative step toward a more sustainable and profitable livestock industry. By converting an industrial byproduct into a renewable energy asset, producers can protect their local environment while securing their energy future.
At Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel), we are dedicated to providing the innovation and engineering excellence that make these projects a success. From our premier GFS tanks and high-performance Epoxy Coated Tanks to our specialized Double Membrane Roofs and Aluminum Dome Roofs, we offer a total containment solution designed for the future of industrial sustainability on Pig Farms.