Center Enamel Provides Glass-Fused-to-Steel Tanks for Taizhou Leachate Anaerobic Nitrification Reactors
Created on 2024.04.01
Center Enamel Provides Glass-Fused-to-Steel Tanks for Taizhou Leachate Anaerobic Nitrification Reactors
In 2018, under the governance of the local administration, Taizhou city in Zhejiang province embarked on a major environmental initiative to enhance its landfill leachate treatment infrastructure. This critical upgrade focused on advanced anaerobic nitrification and denitrification processes—vital wastewater treatment stages designed to effectively reduce high levels of nitrogen and hazardous pollutants in complex waste streams. Center Enamel was selected to provide high-performance containment systems for this municipal environmental project.
Project Specifications and Tank Configuration
The Taizhou landfill leachate treatment project required a robust, highly corrosion-resistant multi-tank setup to handle aggressive biochemical reactions. Completed in September 2018, the project features a total of 7 sets of Glass-Fused-to-Steel (GFS) tanks equipped with Fiber-Reinforced Plastic (FRP) roofs and finished in a striking dark blue color:
● Concentration Tanks: 2 sets ( 4.58m x 6m)
● AO Tanks (Small Scale): 2 sets ( 4.58m x 13.2m)
● AO Tanks (Large Scale): 3 sets ( 7.64m x 13.2m)
● Coating Process: 2 Enameling, 2 Firing for superior molecular fusion
● Quality Assurance: Rigorous 1500V high-voltage holiday testing to guarantee zero pinhole discontinuities and absolute coating integrity
Advanced Engineering for Aggressive Wastewater Environments
Landfill leachate is notoriously toxic, characterized by high organic loadings, heavy metals, and fluctuating chemical balances that rapidly degrade standard concrete or carbon steel. Center Enamel's GFS tanks provide elite performance for anaerobic nitrification and denitrification reactors:
● Permanent Corrosion Resistance: Fusing molten glass enamel to structural steel at extreme temperatures (820°C to 930°C) creates an inert, non-porous glass surface that withstands severe chemical aggression without blistering or oxidizing.
● Stringent Holiday Testing: Each panel undergoes a strict 1500V holiday spark test prior to dispatch, ensuring that every square millimeter of the protective glass-steel barrier is free of defects.
● Modular Strength and Durability: The bolted modular design handles the structural demands of tall tank profiles (up to 13.2 meters high) while facilitating efficient on-site erection.
Comparative Matrix: Leachate Nitrification Reactor Technologies
Evaluation Parameter | Center Enamel Glass-Fused-to-Steel (GFS) Tanks | Cast-in-Place Concrete Basins | Traditional Welded Carbon Steel Tanks |
Chemical & Acid Resistance | Permanent glass-steel fusion completely resists aggressive leachate and biological nitrogen processes | Vulnerable to concrete carbonation, acid etching, and structural micro-cracking | High susceptibility to interior pitting and paint delamination under toxic exposure |
Quality Control & Testing | 100% factory-inspected with strict 1500V holiday testing for pinhole detection | Relies on visual site inspection; highly variable concrete curing quality | Manual field testing with frequent coating flaws |
Installation Speed & Rigging | Rapid modular bolted erection completed safely on schedule | Extremely slow civil construction requiring formwork, pouring, and curing | Slow field construction requiring complex manual welding and site coatings |
Frequently Asked Questions (FAQ)
Q: Where is the Taizhou leachate treatment project located and what was its core objective?
A: The project is located in Taizhou city, Zhejiang province, and was designed to enhance landfill leachate treatment through advanced anaerobic nitrification and denitrification to reduce nitrogen pollution.
Q: What is the total number and breakdown of tanks supplied for this project?
A: Center Enamel supplied a total of 7 sets of GFS tanks with FRP roofs, consisting of 2 concentration tanks (4.58m x 6m), 2 AO tanks (4.58m x 13.2m), and 3 large AO tanks (7.64m x 13.2m).
Q: What quality assurance testing was performed on the tank panels?
A: The panels underwent a strict 1500V high-voltage holiday test to verify 100% coating continuity and guarantee zero pinhole defects before installation.
Q: Why are GFS tanks ideal for anaerobic nitrification and denitrification reactors?
A: GFS tanks combine the high tensile strength of steel with an inert, non-porous glass lining that resists aggressive biological and chemical environments, preventing structural degradation and ensuring a long service life.
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