The textile and dyeing industry faces some of the most stringent environmental regulations globally. Textile Wastewater Treatment involves aggressive chemical profiles: intense synthetic dyes, high turbidity, substantial organic loads (COD/BOD), and rapid pH swings. These factors lead to the rapid deterioration of traditional concrete or welded steel infrastructure.
Center Enamel addresses these challenges with advanced Fusion Bonded Epoxy (FBE) bolted tanks. Our factory-fused technology provides an unyielding barrier against the complex chemistry of textile effluent, ensuring environmental compliance and operational longevity.
Engineering data for AOP, ZLD, and Biological Treatment infrastructure.
Feature | Specification / Capability | Engineering Benefit |
Applicable pH Range | pH 2.0 to pH 12.0 (Continuous) | Resists caustic-to-acid swings in dyeing cycles. |
Coating Technology | Fusion Bonded Epoxy (FBE) | Molecularly bonded for zero-delamination risk. |
Corrosion Class | C5-M (Marine High) / Industrial | Resists high-humidity and chemical vapors. |
Temperature Limit | Up to 60°C (140°F) | Withstands hot process water from scouring. |
Capacity Range | 50 m3 to 60,000 m3+ | Scalable for boutique mills or industrial zones. |
Compliance | AWWA D103-09, ISO 9001, OSHA | Meets international industrial engineering codes. |
Textile manufacturing requires a sophisticated chain of chemical and biological stages. Center Enamel’s tanks serve as the structural backbone for these specialized units:
To break down non-biodegradable organic pollutants, facilities utilize AOP units. Our FBE coating is chemically inert, making it an ideal containment solution for oxidation reactions involving ozone or hydrogen peroxide that would corrode standard carbon steel.
The removal of suspended solids and dyes requires precise chemical dosing. Our tanks support heavy-duty bridge-mounted agitators used in Flocculation Tanks. The high-hardness epoxy finish resists mechanical wear from high-torque mixing.
Reducing Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD) is a primary regulatory hurdle. Our bolted tanks are utilized as Aeration Tanks or Sequencing Batch Reactors (SBR), allowing for the seamless integration of fine-bubble diffusers and aeration grids.
As environmental mandates tighten, the industry is moving toward Zero Liquid Discharge (ZLD). Center Enamel provides the high-durability equalization and storage tanks required to handle the highly concentrated brine and recycled process water typical of ZLD systems.
Traditional containment often suffers from "permeation failure." Center Enamel tanks are tested and certified to withstand the industry's most aggressive agents:
● Reactive & Acidic Dyes: The non-porous FBE surface prevents color leaching and pigment staining. This ensures tank walls do not absorb dyes, facilitating easier Clean-in-Place (CIP) cycles.
● Caustic Scouring Agents: Our tanks are highly resistant to Sodium Hydroxide (NaOH) and other strong alkalis used in mercerizing. While these chemicals cause "acid attack" on concrete, FBE remains inert.
● Heavy Metal Sequestration: We provide an impermeable barrier for wastewater containing Chromium, Copper, and Zinc (used as mordants), ensuring no hazardous leaching into the groundwater.
The Challenge: A large-scale textile mill in Madagascar required a rapid-deploy containment solution to handle high-temperature effluent from denim dyeing operations while meeting strict environmental standards.
The Solution: Center Enamel supplied a specialized Textile Effluent Treatment (ETP) system:
● Configuration: 2 Units of Fusion Bonded Epoxy Bolted Tanks.
● Total Capacity: 2,527 m3.
● Technical Integration: Designed as Equalization and Aeration units with reinforced nozzles for high-flow chemical dosing.
The Outcome: By choosing bolted steel over concrete, the client reduced installation time by 60%. Since 2018, the FBE coating has successfully managed rapid pH swings and high organic loads without requiring internal maintenance.
● Can epoxy tanks handle high temperatures?
Yes. Our FBE tanks withstand continuous operating temperatures up to 60°C, ideal for hot scouring and dyeing discharge.
● Are they resistant to bleaching agents?
Yes. The coating is tested across a pH 2.0–12.0 range, specifically resisting Sodium Hydroxide (NaOH) and other bleaching alkalis.
● Do these tanks support ZLD infrastructure?
Absolutely. The precision-bolted design and high-grade EPDM seals provide the leak-proof integrity required for concentrated brine in ZLD systems.
