In the global shift toward resource recovery and carbon neutrality in 2026, the wastewater treatment industry has transitioned from a linear "treat-and-dispose" model to a circular "resource-recovery" paradigm. Central to this transformation is the deployment of specialized Bolted steel tanks as high-efficiency anaerobic tank systems. By facilitating the biological degradation of organic matter in the absence of oxygen, these systems significantly reduce the organic load (COD/BOD) of effluent while generating valuable biogas—a renewable energy source that can power the facility itself.
Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel), the premier China anaerobic tank manufacturer, is leading this global innovation. By engineering advanced Epoxy Coated Tanks and integrating them with specialized Aluminum Dome Roofs and gas-tight covers, we provide the infrastructure necessary to turn environmental liabilities into energy assets. With successful installations in more than 100 countries, Center Enamel is the trusted partner for engineering the future of high-efficiency organic treatment.
An anaerobic tank serves as a specialized bioreactor where complex microbial communities break down organic contaminants. This process is particularly effective for high-strength industrial wastewater and municipal sewage sludge.
Anaerobic treatment is highly efficient at removing high concentrations of Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD). In a well-managed anaerobic tank, organic pollutants are metabolized by anaerobic bacteria, resulting in an effluent that is much cleaner and easier to process in subsequent aerobic stages.
Unlike aerobic treatment, which requires massive energy for aeration, the anaerobic process is net-energy positive. The biogas produced—primarily methane—can be captured and utilized for heat and electricity. This not only lowers operational costs but also provides a significant carbon offset, helping facilities meet the sustainability mandates of 2026.
Anaerobic systems produce significantly less biological sludge than aerobic systems. This reduces the logistical and financial burden of sludge dewatering, transport, and disposal, further enhancing the project's return on investment (ROI).
The internal environment of an anaerobic tank is notoriously harsh. As organic matter breaks down, it produces biogenic acids and corrosive gases like hydrogen sulfide . As a leading China anaerobic tank manufacturer, Center Enamel utilizes advanced Epoxy Coated Tanks to ensure lifelong structural integrity.
Our FBE process involves the factory-controlled electrostatic application of high-performance epoxy powder to preheated high-strength steel panels.
Corrosion Resistance in Aggressive Phases: The acidic hydrolysis and acidogenesis phases can rapidly degrade standard steel or concrete. Our Epoxy Coated Tanks provide a dense, cross-linked polymer barrier that is chemically inert, protecting the steel substrate from acidic attack.
Pinhole-Free Quality Assurance: Every panel used in our Bolted steel tanks undergoes high-voltage spark testing (typically between 1100V and 1500V) to ensure 100% coating continuity. This is critical for preventing the micro-leaks that can compromise a gas-tight anaerobic reactor.
Smooth Surface for Microbial Health: The non-porous finish of the epoxy coating prevents the buildup of mineral scales (like struvite) and biofilms on the tank walls. This ensures that the internal volume remains dedicated to active treatment and simplifies cleaning during maintenance cycles.
To ensure the efficiency and safety of the anaerobic tank, the choice of roof is paramount. Center Enamel provides specialized solutions based on the specific function of the vessel.
For Bolted steel tanks used as balancing tanks, anaerobic lagoons, or digestate storage, we utilize Aluminum Dome Roofs.
Odor and Emission Control: These domes provide a robust seal that prevents the release of odors and volatile organic compounds (VOCs).
Clear-Span Structural Strength: The geodesic design allows for massive diameters without internal support columns, which is essential for tanks requiring internal mixers or heaters.
Maintenance-Free Longevity: Aluminum’s natural oxide layer provides lifelong resistance to corrosion, meaning the roofs never require painting or sandblasting.
For tanks actively producing and capturing biogas, we utilize specialized gas-tight covers. These covers are engineered to maintain a constant gas pressure, ensuring a steady supply of fuel to the facility's energy recovery system while preventing the ingress of oxygen, which would inhibit the anaerobic process.
Shijiazhuang Zhengzhong Technology Co., Ltd stands as the global authority in modular bolted tank technology for organic treatment.
Our anaerobic tank solutions are designed and manufactured in accordance with AWWA D103-09, ISO 28765, and other international safety benchmarks. This ensures our tanks can handle the specific hydrostatic and gas pressures required by industrial-scale anaerobic digestion.
In the fast-moving energy and environmental sectors, project speed is vital. Our modular bolted design allows for Bolted steel tanks to be shipped in standard containers and assembled on-site using specialized jacking systems. This "top-down" construction method is significantly faster than traditional concrete or welded steel, allowing facilities to begin organic treatment and energy production in a fraction of the time.
The success of Center Enamel’s technology is evidenced by thousands of deployments across diverse industries.
In the Sweden Biogas Project, Center Enamel provided a high-capacity anaerobic digestion vessel (1 unit). This project demonstrates our ability to meet the stringent technical and environmental standards of the European market, ensuring efficient methane recovery from organic waste through advanced tank engineering.
The Muyuan Group Suining Project utilized 2 units of tanks to treat high-strength organic waste. This project proves that our anaerobic tank systems can handle the intensive biological loads and corrosive environments found in large-scale agricultural-industrial operations.
The Hebei Agriculture Water Project involved the installation of 2 units of tanks. This project highlights our capacity to provide the foundational Bolted steel tanks necessary for regional resource management and the pre-treatment of agricultural runoff.
The Jiangsu Xuzhou Biogas Project utilized 4 units of tanks with a total volume exceeding 30,000 cubic meters. As one of the largest anaerobic installations in the region, it showcases our capacity as a leading China anaerobic tank manufacturer to deliver the massive infrastructure required for regional organic waste recycling.
Implementing a high-performance anaerobic tank from Center Enamel offers a definitive return on investment:
Lower Energy Costs: By generating on-site power from biogas, facilities can significantly reduce their reliance on the grid.
Reduced Waste Disposal Fees: The significant reduction in organic solids and sludge volume lowers the costs associated with waste handling and transport.
Environmental Leadership: Our leak-proof designs ensure that methane—a potent greenhouse gas—is captured for fuel, helping facilities achieve their ESG goals and carbon neutrality targets for 2026.
As the world's freshwater and energy challenges grow more complex in 2026, the ability to recover resources from wastewater is essential. Utilizing specialized Bolted steel tanks as a high-performance anaerobic tank is a strategic solution that delivers both environmental protection and a clear financial advantage.
As the leading China anaerobic tank manufacturer, Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel) is dedicated to providing the global market with the most advanced organic treatment solutions. Our combination of high-durability Epoxy Coated Tanks, gas-active covers, and structurally superior Aluminum Dome Roofs ensures that your project will deliver consistent performance for decades. With a presence in more than 100 countries, Center Enamel is the trusted choice for engineering excellence in the sustainable wastewater sector.