Center Enamel's Sewage Process Tanks Deliver Sustainable Solutions Worldwide

Enhancing Wastewater Infrastructure: Center Enamel’s Sewage Process Tanks Deliver Sustainable Solutions Worldwide

As the global population grows and urbanization accelerates, the need for advanced wastewater treatment systems has become more urgent than ever. Central to every wastewater treatment facility are sewage process tanks, which serve as the foundation for efficient, hygienic, and sustainable sewage management. At the forefront of this critical sector is Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel)—China’s leading manufacturer of Glass-Fused-to-Steel (GFS) sewage process tanks and a globally trusted name in industrial storage solutions.

For over three decades, Center Enamel has combined innovation, precision engineering, and environmental stewardship to deliver world-class sewage process tank systems across diverse markets. With installations in more than 100 countries and regions, Center Enamel is transforming how communities and industries manage and treat wastewater.

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

Why Sewage Process Tanks Matter

Sewage process tanks are critical components in municipal and industrial wastewater treatment plants. These tanks facilitate biological, chemical, and physical processes that remove contaminants from sewage before it is safely discharged or reused.

The primary roles of sewage process tanks include:

Primary sedimentation to allow solids to settle

Secondary treatment using biological agents to break down organic matter

Sludge digestion and stabilization

Effluent polishing before discharge or reuse

Given their continuous exposure to corrosive and biologically active environments, sewage tanks must be built to withstand harsh operating conditions, minimize maintenance, and support compliance with increasingly stringent environmental regulations.

Center Enamel’s Technology Edge

Center Enamel specializes in Glass-Fused-to-Steel (GFS) technology, which merges the strength of steel with the corrosion resistance of glass. The result is a durable, non-reactive, and maintenance-free storage solution that offers a service life exceeding 30 years.

Key Features of Center Enamel Sewage Process Tanks:

Corrosion Resistance: The glass coating protects the steel substrate from acidic, alkaline, and biological attack.

Modular Design: Pre-engineered panels allow for quick assembly and scalability.

Leak Prevention: The glass-fused coating forms a smooth, non-porous surface that resists leakage and microbial growth.

International Compliance: Tanks meet ISO 9001, NSF/ANSI 61, AWWA D103, WRAS, and EN ISO 28765 standards.

Center Enamel also provides stainless steel tanks, epoxy-coated tanks, and carbon steel tanks to suit specific project needs, budget constraints, and environmental conditions.

Sewage Tank Types and Applications

Center Enamel offers a full range of sewage process tanks, each engineered for a specific role within the wastewater treatment cycle:

1. Primary Clarifiers

Designed for sedimentation of suspended solids from raw sewage. Our GFS tanks allow easy sludge removal and integrate seamlessly with scum skimmers and flow regulators.

2. Aeration Tanks / Bioreactors

Used in secondary treatment to support microbial digestion of organic matter. Center Enamel tanks accommodate aeration equipment, mixers, and baffle walls for maximum process efficiency.

3. Secondary Clarifiers

Facilitate the settling of biomass after aeration. Tanks are configured for optimal sludge return and effluent clarity.

4. Sludge Holding and Digestion Tanks

These tanks stabilize sludge, reduce pathogens, and support biogas generation. Our tanks are compatible with heating coils, gas holders, and mixing systems.

5. Effluent Storage Tanks

Final holding tanks before treated water is reused or discharged. Our coatings ensure effluent quality is maintained without contamination.

Engineering and Customization

Center Enamel tanks are engineered for global deployment in diverse environmental conditions, from deserts to rainforests. Our engineers use advanced design software and Finite Element Analysis (FEA) to ensure structural integrity under local wind, seismic, and snow load conditions.

Customization Options:

Tank diameters ranging from 3.6m to 100m

Heights up to 30m

Operating temperatures from -60°C to 85°C

Internal coatings for different pH levels

Fittings and accessories including walkways, ladders, mixers, diffusers, and domed or flat roofs

Whether it’s a decentralized treatment plant in a remote village or a mega-urban facility, Center Enamel provides tailor-made solutions that meet operational, logistical, and regulatory requirements.

Sustainability and Environmental Stewardship

Center Enamel is committed to supporting the United Nations Sustainable Development Goals (SDGs), particularly those related to clean water and sanitation (SDG 6) and sustainable cities (SDG 11).

Our sewage process tanks support:

Wastewater recycling and reuse

Biogas capture and utilization

Reduced energy consumption through efficient process integration

Minimal construction waste due to modular design

Carbon footprint reduction compared to concrete tanks

Global Case Studies

1. Municipal Wastewater Treatment Plant – Vietnam

Center Enamel provided a series of GFS tanks for a city in northern Vietnam, enabling the treatment of 30,000 m3/day of sewage. The tanks integrated aeration systems and sludge digesters, drastically improving effluent quality and odor control.

2. Industrial Wastewater Facility – Russia

A chemical processing plant in Russia required high-corrosion resistance tanks for hazardous effluents. Center Enamel's customized tanks with chemical-resistant coatings met all Russian environmental standards.

3. Decentralized Treatment in Nigeria

To combat water pollution in rural Nigeria, a non-profit partnered with Center Enamel to build compact treatment units with GFS tanks. These systems supported local sanitation while providing safe water for agriculture.

4. Sludge Digestion Plant – Argentina

Partnering with a renewable energy developer, Center Enamel delivered anaerobic digestion tanks that processed sludge into biogas, reducing waste volume and generating clean energy for local use.

Integration with Aluminium Dome Roofs

To enhance tank performance, Center Enamel offers aluminium dome roofs for sewage tanks. These lightweight, corrosion-resistant covers prevent rainwater ingress, odor escape, and gas emissions. They also improve safety and extend tank life.

Installation and Service Excellence

Center Enamel provides full EPC services, including:

Site surveys and technical drawings

3D BIM modeling

Logistics and shipping support

On-site supervision or installation teams

Post-installation inspection and training

Our international clients appreciate our fast lead times, responsive service, and multilingual project managers who ensure smooth communication across borders.

Regulatory Compliance and Certifications

Center Enamel sewage process tanks comply with international regulations and are certified by:

NSF/ANSI 61 for drinking water safety

WRAS (UK) for water system components

ISO 9001 for quality management

AWWA D103 for bolted tanks

EN ISO 28765 for GFS tanks

These certifications make our tanks suitable for both public and private sector projects worldwide.

Future Developments: Smart Wastewater Infrastructure

In line with global trends toward digitalization and smart infrastructure, Center Enamel is investing in IoT-enabled sewage tanks. These systems will feature:

Remote monitoring of water levels, pH, and temperature

Predictive maintenance through sensor analytics

Automated alerts for overflow or contamination

Such innovations will empower municipalities and plant operators with real-time data to optimize performance and ensure compliance.

Building a Cleaner Tomorrow

The challenge of sustainable wastewater treatment is not just technical — it’s societal. Center Enamel is proud to play a vital role in helping cities, industries, and communities manage their sewage responsibly and efficiently.

As the leading manufacturer of sewage process tanks in China, and a top-tier supplier globally, Center Enamel offers proven expertise, advanced engineering, and a deep commitment to sustainability. Our sewage tanks are more than just containers — they are vital systems designed to protect public health, conserve resources, and shape a cleaner future.

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.