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Chemical Pollutants in Textile Wastewater

  • Sizing agents (PVA, starch, CMC) create viscous high COD.
  • Surfactants cause foaming and toxicity.
  • Alkalis from scouring drive extreme pH.
  • Finishing chemicals are persistent.
  • Heavy metals from mordant dyes.
  • Chlorinated organics from bleaching.

Chemical Treatment Options

pH Neutralisation

Automated acid/alkali dosing to bring pH into discharge range.

Coagulation & Flocculation

Metal salts and polyelectrolytes for colloid and solids aggregation.

DAF Flotation

Removal of oils, surfactants, and light solids in a compact unit.

Precipitation

Targeted heavy metal and phosphate precipitation.

Advanced Oxidation

Fenton, photo-Fenton, and ozonation for persistent organics.

Activated Carbon Adsorption

Polishing for micropollutants and residual colour.

What Reynolds & Bauhm Provides

Chemical Dosing Skids

Automated polymer and pH control with integrated mixing and monitoring.

Jar Testing Services

Rapid coagulant optimisation and dose confirmation in our lab or on site.

Integrated DAF Units

High-rate flotation with small footprint and low operator demand.

Toxicity Removal

Proven reduction of acute toxicity to safe levels for discharge or reuse.

Performance Metrics

80-95%

COD removal

90-99%

heavy metal removal

>95%

surfactant reduction

pH 6.5–8.5

discharge range

Textile Chemical Treatment Solutions

Treatment Challenge

Textile wastewater requires precise chemical treatment for coagulation, pH adjustment, and oxidation. Incorrect dosing or inadequate mixing leads to poor treatment performance, excess chemical consumption, and high sludge volumes.

High BOD and COD loads requiring biological treatment
Colour removal to meet discharge consent limits
Variable flow and batch processing operations
Water reuse potential for sustainability targets

Our Solution

We provide fully automated chemical treatment systems with jar-test-calibrated dosing, inline mixing for optimal chemical utilisation, and PLC control with feed-forward and feedback loops. This ensures consistent treatment quality with minimum chemical usage and sludge production.

Integrated treatment train design
Process-specific chemical optimisation
Automated control with SCADA integration
Compliance with BAT and ZDHC standards

Treatment Process Overview

1

Pre-Treatment

Screening, grit removal, and equalization to protect downstream equipment and balance flows.

2

Chemical Treatment

Coagulation, flocculation, and pH adjustment for solids and colour removal.

3

Biological Treatment

Activated sludge, MBBR, or SBR for BOD and nutrient removal.

4

Polishing & Reuse

Filtration, activated carbon, and optional RO for water recovery.

Related Pages

Advanced Oxidation

Advanced oxidation processes for recalcitrant industrial organics.

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Aop Fenton

Fenton's oxidation for recalcitrant COD, dyes, and toxic organics.

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Aop Ozonation

Ozonation and O3/UV advanced oxidation for Colour removal, odour control, and micropollutant destruction in industrial wastewater.

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Textile Carpet

Textile wastewater treatment for carpet & rug mills.

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Textile Colour Removal

Textile wastewater treatment for Colour removal.

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Textile Denim

Textile wastewater treatment for denim manufacturing.

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Need help with chemical conditioning and treatment?

Our experts can design a system tailored to your specific requirements.

Industries We Serve

Our expertise spans multiple industries with sector-specific water treatment solutions.