Epoxy-Coated Bolted Tanks for Industrial High-Salinity Wastewater
description
Bolted steel tanks serve as circular‑shaped vessels including equalization tanks, biochemical tanks, sedimentation tanks and clean‑water tanks within the industrial high‑salinity‑wastewater treatment process.
Chloride ions contained in high‑salinity industrial wastewater impose severe corrosion upon carbon‑steel materials. The safe long‑term working concentration range of chloride ions for S316L stainless‑steel plates is ≤1500‑2000 ppm.
Benefiting from the material merits of FBE (fusion‑bonded‑epoxy) coated steel tanks, these vessels can run year‑round continuously while holding high‑salinity media, without corrosion, coating penetration or decline in structural strength.
Process flow for industrial high‑salinity wastewater treatment: Neutralization Tank → Coagulation Tank → Flocculation Tank → Electrolysis Tank → Equalization Tank → AO Biological Tank → MBR Tank → Clean‑Water Tank
Specification
|
Coating thickness |
80~450um |
|
pH range |
Standard grade 3~11; Special grade 1~14 |
|
Hardness |
2.5Mohs |
|
Elasticity |
500KN/mm |
|
Service life |
More than 15 years |
Features Of Epoxy Coated Steel Tanks
• Excellent corrosion resistance
Wide chemical resistance: It can withstand corrosion from various acids, alkalis, salts, organic solvents, and some oxidants, making it suitable for storing corrosive media in industries such as chemical, electroplating, and pharmaceutical.
Long‑term stability: It is not easily aged or degraded in complex chemical environments, resulting in a long service life.
• High mechanical strength and wear resistance
Robust structure: The epoxy resin material has high hardness, good impact and compressive strength, and can withstand certain external loads.
Wear and scratch resistant: The smooth and wear‑resistant inner wall is suitable for storing suspensions containing solid particles.Aesthetics: The smooth, uniform surface of FBE steel tanks improves the appearance of the tank and surrounding area.
• Lightweight and high‑strength, easy to install
Lightweight: Weighs significantly less than steel or concrete tanks of the same volume, reducing transportation and installation costs.
Modular design: Partially assembleable on‑site, adaptable to large or special site requirements.
• Excellent insulation properties
Electrical insulation: Non‑conductive, suitable for special storage applications in the electronics and power industries (such as insulating oil and electrolytes).
Anti‑static design: Anti‑static function can be achieved by adding conductive materials, suitable for flammable and explosive environments.
• Flexible customization and adaptability
Flexible shape and size: Vertical, horizontal, and irregularly shaped structures can be customized to suit different spaces.
Highly integrated with processes: Epoxy coated tanks can not only be used for water storage, but also be integrated with various industrial processes (such as anaerobic and aerobic reactors). These functional prefabricated reactors meet diverse treatment needs.
• Low maintenance costs
No coating required for corrosion protection: Unlike metal tanks, no regular application of anti‑corrosion coatings is needed.
Easy cleaning: The smooth inner wall prevents material buildup, making cleaning simple and reducing residue.
• Environmental Protection and Safety
Non‑toxic and Pollution‑Free: Food‑grade epoxy resin can be used for the storage of drinking water and food additives.
Flame Retardant Option: Flame retardant properties can be achieved through formulation adjustments to meet fire safety requirements.
Fusion‑Bonded‑Epoxy (FBE) Bolted Steel Tanks for Industrial High‑Salinity Wastewater Storage
Equalization Tank: Dimension D12.99 m × H9.6 m, quantity: 2 units, effective‑volume: 1270 m³
Anoxic Tank: Dimension D12.99 m × H9.6 m, quantity: 2 units, effective‑volume: 1270 m³
Aerobic Tank: Dimension D18.33 m × H9.6 m, quantity: 2 units, effective‑volume: 2530 m³
Sludge Storage Tank: Dimension D5.35 m × H5.4 m, quantity: 1 unit, effective‑volume: 120 m³
Clean‑Water Tank: Dimension D5.35 m × H5.4 m, quantity: 1 unit, effective‑volume: 120 m³