China’s Leading Wastewater Holding Tanks Manufacturer

China’s Leading Wastewater Holding Tanks Manufacturer

Glass-Fused-to-Steel Solutions by Center Enamel for Sustainable Wastewater Management

Effective wastewater management is one of the foremost environmental challenges faced by communities, industries, and governments worldwide. From municipal sewage systems to industrial effluent treatment, wastewater holding tanks are critical infrastructure components that ensure safety, environmental compliance, and reliable treatment performance. When it comes to engineered solutions designed to withstand corrosive environments and provide long-term reliability, Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel) stands out as China’s leading wastewater holding tanks manufacturer — delivering advanced Glass-Fused-to-Steel (GFS) tank systems that set the standard for corrosion resistance, structural integrity, hygiene, and lifecycle value.

With nearly two decades of experience, a portfolio of proprietary enameling technologies, international certifications, and successful installations in more than 100 countries, Center Enamel is trusted globally for wastewater containment and treatment infrastructure.

Center Enamel: Expertise Built on Innovation

Founded in 2008, Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel) has become one of Asia’s most experienced manufacturers of bolted tank systems. While Center Enamel is widely recognized for its leadership in Glass-Fused-to-Steel technology for water and wastewater storage, its engineered solutions extend to:

Wastewater holding tanks

Anaerobic digesters

Sludge storage and treatment tanks

Industrial effluent containment

Biogas and energy recovery systems

Center Enamel’s product range also includes:

Fusion Bonded Epoxy Tanks

Stainless Steel Tanks

Galvanized Steel Tanks

Aluminum Geodesic Dome Roofs

EPC Technical Support and Turnkey Systems

Supported by nearly 200 patented enameling technologies, a professional R&D team, and an expansive manufacturing base exceeding 150,000 m², Center Enamel continues to push the boundaries of engineered containment solutions.

What Are Wastewater Holding Tanks and Why Do They Matter?

A wastewater holding tank is designed to collect, contain, and temporarily store wastewater before it undergoes treatment, recycling, or controlled discharge. Holding tanks are essential in:

Municipal wastewater treatment plants

Industrial effluent management systems

Construction and mining project wastewater storage

Remote community sewer systems

Combined sewer overflow (CSO) buffering

Pre-treatment storage in food, textile, and chemical facilities

Unlike simple storage vessels, wastewater holding tanks must withstand prolonged exposure to chemically aggressive liquids, suspended solids, biological activity, and fluctuating temperatures — all while protecting surrounding soil and groundwater.

Traditional materials — such as concrete, painted steel, or basic fiberglass tanks — often fall short when exposed to corrosive wastewater environments, frequently requiring extensive repairs or replacement. In contrast, Glass-Fused-to-Steel technology offers an engineered solution that fundamentally addresses these challenges.

What Is Glass-Fused-to-Steel (GFS) Technology?

Glass-Fused-to-Steel (GFS) is an advanced material technology in which specially formulated glass is fused to steel panels in high-temperature kilns (820°C to 930°C). The process creates a permanent inorganic bond between the glass and the steel substrate, resulting in a composite material with characteristics suited to harsh environments.

GFS Material Properties

Steel Strength: Provides structural reliability and load-bearing capacity.

Glass Inertness: Offers chemical resistance and corrosion protection.

Smooth, Non-Porous Surface: Prevents adhesion of solids and biofilms.

Impermeability: Blocks liquid and gas permeation to prevent leakage.

Abrasion Resistance: Protects against wear from suspended particles.

Minimal Maintenance: Reduces lifecycle servicing and repair needs.

These combined benefits make GFS an exceptional choice for wastewater holding tanks, especially in applications where corrosion and hygiene are top concerns.

Core Advantages of GFS Wastewater Holding Tanks

1. Unmatched Corrosion Resistance

Wastewater contains acids, sulfides, chlorides, and solvents that aggressively attack concrete and steel. The fused glass coating is chemically inert and immune to these corrosive elements, extending tank life and protecting water quality.

2. Hygienic and Easy-to-Clean Surface

The smooth, glossy internal surface reduces adhesion of sludge, biofilms, and contaminants. This not only enhances performance but also simplifies maintenance and augments cleaning protocols — essential for regulatory compliance and process efficiency.

3. Leak-Proof and Leak-Resistant

Glass-Fused-to-Steel tanks are impermeable to both gases and liquids, eliminating seepage that could contaminate the environment or compromise treatment processes.

4. Structural Strength and Stability

The steel substrate provides high mechanical strength, while the fused glass layer protects it from corrosive attack. This ensures the tank withstands internal slurry loads, dynamic pressures, and external environmental forces.

5. Long Lifecycle and Low Cost of Ownership

Designed for a service life of 30 years or more, GFS tanks offer a lower total cost of ownership compared to conventional materials that require ongoing maintenance or frequent replacement.

6. Modular Bolted Design for Ease of Installation

Center Enamel’s GFS tanks are constructed from modular bolted panels that allow efficient on-site assembly, reduced construction time, ease of transport to remote sites, and flexible expansion options.

Technical Specifications of GFS Wastewater Holding Tanks

Feature Specification

Coating Thickness 0.25–0.45 mm

Adhesion Strength ≥3450 N/cm²

Hardness 6.0 Mohs

Holiday Test Voltage 1500 V

pH Resistance Standard: 3–11; Special: 1–14

Permeability Gas & liquid impermeable

Surface Smooth, glossy, inert, anti-adhesion

Service Life ≥30 years

Assembly Method Modular bolted panel design

Available Colors Black Blue, Forest Green, Grey Olive, Cobalt Blue, Desert Tan, Sky Blue, Mist Green

These specifications ensure that Center Enamel’s wastewater holding tanks can meet high performance and reliability standards across varied global applications.

International Standards and Certifications

Center Enamel’s GFS wastewater holding tanks are manufactured in compliance with globally recognized engineering and quality standards:

ISO 9001 Quality Management System

ISO 45001 Occupational Health & Safety

ISO 28765 GFS Tank Standard

AWWA D103-09 Tank Standard

NSF/ANSI 61 Drinking Water Safety (when used for potable or blended systems)

CE / EN1090 Certification

WRAS, FM, LFGB, BSCI (accessory and safety certifications)

These certifications demonstrate Center Enamel’s commitment to international quality, safety, and environmental stewardship.

Applications of GFS Wastewater Holding Tanks

GFS wastewater holding tanks are used in a wide array of scenarios where reliable storage, corrosion resistance, and water quality protection are paramount:

Municipal Wastewater Treatment Plants

Holding tanks are used for equalization, buffering peak flows, temporary storage during maintenance, and staging for secondary treatment processes.

Industrial Effluent Management

Factories, industrial parks, and processing facilities use GFS tanks to collect and store process wastewater before treatment or discharge.

Construction and Mining Sites

Sites with variable wastewater production use holding tanks as interim storage before transport, treatment, or release.

Food Processing Facilities

Food and beverage plants generate high-organic wastewater that requires interim holding before sequential treatment.

Combined Sewer Overflow (CSO) Systems

Holding tanks buffer excess inflows during storm events to prevent system overloads and uncontrolled releases.

Remote and Rural Systems

Communities without centralized wastewater infrastructure rely on holding tanks as part of decentralized or modular treatment schemes.

Manufacturing Excellence and Innovation

Center Enamel’s production capacity is supported by advanced manufacturing facilities covering more than 150,000 m², equipped with:

Smart manufacturing workshops

Precision enameling kilns

Quality control laboratories

R&D innovation centers

Corporate technology exhibition halls

Major manufacturing milestones include:

Development of Asia’s first double-sided enameled hot-rolled steel plate

Fabrication of GFS tanks as large as 32,000 m³

Installation of tanks exceeding 34.8 meters in height

Achieving record single-tank volumes of 21,094 m³

These accomplishments underscore Center Enamel’s engineering strength, precision fabrication, and scale across industrial and municipal applications.

Global Project Experience

Center Enamel’s GFS wastewater holding tanks have been installed in renowned projects across more than 100 countries, signaling international trust and performance reliability:

North America (USA, Canada)

Municipal wastewater systems requiring corrosion-resistant holding tanks for equalization and buffering.

Europe & CIS (Russia, Eastern Europe)

Industrial effluent management and public utility systems with stringent discharge standards.

Southeast Asia (Malaysia, Indonesia)

Tropical wastewater systems demanding high corrosion resistance and long service life.

Middle East (UAE, Saudi Arabia)

Arid region installations with integrated wastewater staging and environmental management systems.

Latin America (Brazil, Panama)

Urban and industrial wastewater holding solutions adapted to local conditions.

Africa & South Africa

Municipal and industrial wastewater infrastructure for growing urban centers.

This global footprint reflects the adaptability of Center Enamel’s GFS tanks to diverse climatic conditions, regulatory landscapes, and operational requirements.

Integrated System Components and Accessories

Center Enamel provides not just tanks, but fully integrated systems for wastewater holding applications, including:

Aluminum geodesic or flat roofs

Manholes and access ports

Inflows, outflows, and process connections

Instrumentation and level monitoring ports

Walkways, ladders, and safety platforms

EPC technical support and project engineering services

These components enable seamless integration with piping, pumps, control systems, and treatment processes.

Project Delivery and Technical Support

Center Enamel’s comprehensive project delivery approach includes:

Consultation & Feasibility Study

Site assessment

Flow and volume forecasting

Regulatory review

Budgetary planning

Custom Engineering & Design

Hydraulic modeling

Structural analysis

Seismic and environmental design

Fabrication & Quality Assurance

Panel fabrication under strict protocols

Holiday testing and thickness verification

Weld and joint inspections

Logistics & Installation Support

Transport planning

On-site assembly supervision

Commissioning assistance

After-Sales & Lifecycle Services

Maintenance planning

Inspection protocols

Performance reviews and upgrades

This full-service support ensures long-term tank performance and customer satisfaction.

Environmental Sustainability and Impact

Wastewater holding tanks play an essential role in responsible water management. Center Enamel’s GFS solutions support environmental sustainability by:

Preventing contamination of soil and groundwater

Facilitating effective wastewater treatment sequences

Reducing chemical and maintenance waste

Providing long-term service life with minimal replacement waste

Supporting decentralized treatment solutions in rural and developing areas

These benefits align with global water quality goals and commitments to environmental stewardship.

Why Center Enamel Is the Preferred Choice

Global Technology Leadership

Center Enamel pioneered GFS tank technology in China and continues to innovate with patented solutions.

International Standards & Certifications

ISO, CE, NSF/ANSI, WRAS, and other certifications ensure global acceptance and regulatory compliance.

Custom Engineering Excellence

Designs tailored to site-specific conditions, wastewater characteristics, and regulatory environments.

Manufacturing Strength

Advanced facilities capable of high-volume, high-precision production with strict quality control.

Global Deployment

Proven performance in diverse markets across six continents.

Comprehensive Support Services

From planning and design through installation and after-sales care.

As communities and industries worldwide continue to invest in wastewater infrastructure, Glass-Fused-to-Steel wastewater holding tanks from Shijiazhuang Zhengzhong Technology Co., Ltd (Center Enamel) provide a reliable, long-lasting, and environmentally responsible solution.

With exceptional corrosion resistance, structural strength, hygiene, and global compliance, these tanks meet the highest standards of performance and durability. Supported by advanced manufacturing capabilities, nearly 200 technical patents, rigorous quality control, and international certifications, Center Enamel is the global leader in wastewater holding tank solutions.

Whether used in municipal wastewater systems, industrial effluent management, construction and mobile installations, or remote decentralized treatment networks, Center Enamel’s GFS tanks deliver performance, sustainability, and peace of mind — today and for decades to come.