Textile & Dyeing Wastewater Treatment

Dyes, starch, and fibers from dyeing & finishing — engineered systems that cut COD and color to discharge limits

Textile dyeing wastewater treatment installation

Dyes and Starch Make Textile Effluent Hard to Treat

Dyeing, printing, and finishing plants discharge water loaded with reactive dyes, sizing starch, fibers, and salt. The color is not just cosmetic — it signals recalcitrant organics that ordinary biological treatment cannot fully remove.

High CODTypically 800–5,000 mg/L from dyes & sizing
Intense ColorRecalcitrant dyes visible even at low concentration
Fibers & TSSLint and suspended solids from washing
Batch VariabilitySalts and pH swings between dye lots

A Complete Treatment Line, Engineered to Order

From pre-screening to advanced color removal, every stage is sized to your flow and discharge target.

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1 · Pretreatment

Bar screens and an equalization tank remove fibers and smooth out pH and salt swings.

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2 · DAF Clarification

Coagulation + dissolved air flotation strips out color, fibers, and suspended solids before biological treatment.

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3 · Biological + Polish

A/O plus advanced oxidation or MBR polishing removes residual COD and color.

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4 · Sludge Dewatering

Belt or screw press dewaters the dyed sludge to 20–35% cake solids for disposal.

The Two Machines That Do the Heavy Lifting

Dissolved Air Flotation DAF system

Dissolved Air Flotation (DAF) System

With coagulation dosing, DAF is the first major color-removal step for textile effluent — lifting dyes, fibers, and solids to the surface before they reach your biological stage.

Flow Rate1–200 m³/h, modular design
TSS Removal≥ 90%, with coagulation dosing option
Color RemovalSignificant first-stage reduction of dyed color
MaterialSS304, SS316L, or anti-corrosion carbon steel
See DAF System Details →
MBR membrane bioreactor

MBR Membrane Bioreactor

For mills that need to reuse water or meet tight color limits, an MBR combines biological treatment with membrane separation — producing effluent clean enough for recycling back into washing and rinsing.

TechnologySubmerged or external membrane modules
Effluent QualitySuitable for reuse or strict discharge
FootprintCompact, replaces clarifier + filtration
AutomationPLC with online membrane cleaning control
Ask About MBR →

Typical System Configurations

Reference line-ups by scale — the final design depends on your flow and discharge target.

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Small · Garment Washing

≤ 100 m³/d

Bar screen + coagulation DAF-30 + sludge dewatering.

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Medium · Dyeing / Printing

100–500 m³/d

Bar screen + equalization + DAF-100 + A/O + sludge dewatering.

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Large · Integrated Mill

> 500 m³/d

Bar screen + equalization + DAF-200 + A/O + MBR polish + sludge dewatering.

Engineered in China's Environmental Machinery Base

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Engineered-to-Order

Designed around your flow, inlet parameters, and site constraints — never off-the-shelf.

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ISO 9001 · CE Marked

Certified manufacturing with pre-shipment testing and third-party inspection welcomed.

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Exporting to 50+ Countries

Export-grade crating and FCL/LCL logistics from a factory near Qingdao Port.

Get a Textile Wastewater Solution Proposal

Send us your flow and inlet parameters, and our engineers will return a recommended configuration and budget within 24 hours.

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Phone / WhatsApp
+86 18765146311
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Email
wufangjixie@gmail.com
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Factory Address
Zhucheng City, Shandong Province, China 262200

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Request a Quotation

We typically respond within 12 hours on business days.

⚙ Wufang Assistant
Hello! I can tell you more about our textile & dyeing wastewater treatment systems — DAF, MBR, or a full-line design. What would you like to know?