Center Enamel's Aluminium Dome Roofs for Sewage Process Tanks

Center Enamel's Aluminium Dome Roofs for Sewage Process Tanks

In the world of wastewater and sewage management, every component of a treatment facility matters. From tank linings to aeration systems, each element must deliver durability, efficiency, and long-term performance. Among these, the role of the tank roof structure often goes unnoticed — yet it is crucial to the integrity, safety, and functionality of the entire system.

At Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel), we understand this importance. As a pioneer in storage tank innovation and a global leader in Glass-Fused-to-Steel (GFS) tank technology, we now bring an equally powerful solution to tank roofing: aluminium dome roofs designed specifically for sewage process tanks. Combining structural integrity, corrosion resistance, and aesthetic appeal, our aluminium dome roofs are setting new standards in wastewater infrastructure worldwide.

As a leading storage tanks manufacturer worldwide. Center Enamel can provide Glass-Fused-to-Steel (GFS) tanks, fusion bonded epoxy tanks, stainless steel tanks, galvanized steel tanks and aluminum geodesic dome roofs, Wastewater and Biogas Project Equipments for global customers.

WasteWater Treatment Project Equipment Supply

The Need for Advanced Roof Structures in Sewage Treatment

Sewage treatment tanks are exposed to highly corrosive environments. Biological decomposition, chemical treatment processes, and fluctuating humidity levels all contribute to accelerated wear and tear on traditional tank roofs. Problems such as rust, roof collapse, odor leakage, and safety hazards are common with conventional materials like steel or concrete.

The solution? A lightweight, high-strength, corrosion-resistant material that can withstand chemical exposure while also providing longevity and reduced maintenance costs. That’s where aluminium dome roofs excel — and why they are becoming the global standard for modern sewage tank roofing.

Center Enamel’s Aluminium Dome Roofs: An Overview

At Center Enamel, we apply the same philosophy to dome roofs as we do to our tanks: excellence in engineering, sustainability, and long-term value. Our aluminium dome roofs are:

Designed for corrosion resistance, especially in hydrogen sulfide-rich and acidic environments common in sewage tanks.

Engineered for lightweight performance, allowing for ease of installation and minimal structural loading.

Custom-fabricated to fit any tank diameter and design specifications.

Maintenance-free for decades, offering low life-cycle costs.

These roofs are manufactured with aerospace-grade aluminium alloys, precision-formed components, and computer-modeled to meet wind, snow, and seismic load requirements.

Key Benefits of Aluminium Dome Roofs in Sewage Applications

1. Corrosion Resistance

Aluminium does not rust and resists the harsh chemical reactions present in sewage environments. Unlike steel roofs that degrade over time, aluminium dome roofs remain structurally sound and leak-free, even after decades of exposure.

2. Low Weight, High Strength

Our dome roofs use extruded aluminium framing systems that offer exceptional strength-to-weight ratios. This reduces the need for heavy supporting columns or foundations and enables fast, safe installation.

3. Odor and Gas Containment

A well-sealed aluminium dome roof prevents the escape of foul odors and harmful gases such as methane and hydrogen sulfide, which are by-products of sewage decomposition. This protects plant workers and nearby communities.

4. Zero Maintenance

Once installed, aluminium dome roofs require no recoating, painting, or surface treatment. Their passive resistance to corrosion makes them virtually maintenance-free over their service life.

5. Environmental Sustainability

Aluminium is 100% recyclable and has a significantly lower environmental footprint than coated steel or concrete. Choosing aluminium dome roofs supports sustainable building practices.

6. Aesthetic and Structural Appeal

The smooth, modern finish of an aluminium dome roof gives a clean and professional appearance to sewage treatment plants. Their geometric integrity adds not just function but also architectural value.

Engineering Specifications and Customization

Every aluminium dome roof from Center Enamel is fully customizable. We tailor our designs to meet:

Tank diameter and height

Load-bearing requirements (wind, snow, seismic)

Integration with GFS tanks or other tank types

Access ports, skylights, and venting systems

Installation environment (coastal, arid, high-altitude, etc.)

The dome panels and supporting struts are prefabricated for modular assembly, reducing site disruption and accelerating construction timelines. Our design software ensures precise curvature and fitment for leak-proof performance.

Applications in Sewage Process Systems

Center Enamel’s aluminium dome roofs are widely used in the following sewage treatment applications:

Primary and secondary clarifiers

Anaerobic digesters

Sludge holding tanks

Bioreactors

Effluent storage tanks

By preventing the ingress of rainwater and debris and minimizing gas emissions, our dome roofs help maintain stable processing environments and enhance treatment efficiency.

Safety, Compliance, and Standards

Center Enamel designs all aluminium dome roofs in compliance with:

ASCE 7-10 and EUROCODE wind and load standards

AWWA D108 specifications for dome roofs

Localized building codes and safety requirements

We prioritize occupational safety, providing anti-slip surfaces, integrated walkways, and safe access hatches. All designs undergo rigorous simulation and physical testing.

Integration with Center Enamel GFS Tanks

While our aluminium dome roofs are compatible with various tank materials, they are perfectly suited to integrate with Center Enamel GFS tanks, forming a seamless, corrosion-resistant, and visually unified system. This integration improves structural behavior, simplifies project coordination, and ensures long-term reliability.

Together, GFS tanks and aluminium dome roofs provide the ultimate solution for:

Wastewater storage and treatment

Sludge digestion and biogas generation

Decentralized and emergency sewage systems

Installation and After-Sales Support

Center Enamel offers full-service project support, including:

3D modeling and technical drawings

On-site supervision and training

After-sales inspections and maintenance guidelines

Our global team of engineers and project managers ensures successful delivery anywhere in the world, with quick response times and clear communication.

Looking Toward the Future: Smart Roof Systems

In line with our vision for smart infrastructure, Center Enamel is developing intelligent aluminium dome roofs that integrate:

Gas and odor sensors

Temperature and pressure monitoring

Solar panels for auxiliary power

These innovations will enable real-time data collection, enhanced safety, and energy efficiency in sewage treatment plants, further cementing Center Enamel’s leadership in smart environmental solutions.

A Smarter Choice for Smarter Cities

As urban populations grow and environmental regulations tighten, the need for reliable, cost-effective, and sustainable sewage infrastructure has never been greater. Center Enamel's aluminium dome roofs represent a strategic investment in operational efficiency, public health, and environmental stewardship.

By combining lightweight design, corrosion resistance, and customizable engineering, our dome roofs are not just coverings — they are key components in the performance and longevity of sewage process systems.

With Center Enamel, you're not just choosing a product. You're choosing a partner committed to quality, innovation, and global success.

Shijiazhuang Zhengzhong Technology Co.,Ltd is a professional manufacturer dedicated to the design and fabrication of bolted storage tanks since 1989. Our products range includes Glass-Fused-to-Steel (GFS) tanks, fusion bonded epoxy tanks, stainless steel tanks, galvanized steel tanks and aluminum geodesic dome roofs. With professional enameling R&D team and more than 20 enameling patents, Shijiazhuang Zhengzhong Technology Co.,Ltd has become the leader in bolted tanks industry of Asia. Our products are certified to ISO 9001, CE, NSF/ANSI 61, WRAS, ISO 28765, LFGB, BSCI, ISO 45001 and other international standards.

Shijiazhuang Zhengzhong Technology Co., Ltd is not only the first manufacturer in China which produces Glass-Fused-to-Steel tanks, but also the most experienced professional bolted tanks manufacturer in Asia. The engineering & design, product testing and quality system of Center Enamel Glass-Fused-to-Steel tanks is in strict accordance with AWWA D103-09, OSHA, ISO 28765, NSF/ANSI 61, NFPA and other international standards. Center Enamel Glass-Fused-to-Steel tanks are wildly used in drinking / potable water, industrial effluents, municipal sewage, bio-energy, landfill leachate, agriculture and other applications. Until 2023, Center Enamel bolted tanks have been exported to more than 100 countries including USA, Australia, Canada, Malaysia, Indonesia, Russia, UAE, Panama, Brazil and South Africa etc., the superior tank quality and prompt service gains us worldwide recognition.

As an outstanding containment and cover system provider with more than 30 years of experience, Shijiazhuang Zhengzhong Technology Co., Ltd sincerely expects to establish long-term cooperation with the local partners throughout the world and make continuous contribution to the development of the industry.