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Paper printing and dyeing effluent treatment solution

2026-03-31

As a China-based water treatment chemicals supplier with 10 years of experience, we realize that printing and dyeing wastewater has very distinct characteristics:

⚪High COD, BOD, and suspended solids

⚪Persistent color and surfactants

⚪Poor biodegradability

⚪Complex compositions from dyes, inks, resins, thickeners, surfactants

This type of wastewater usually requires a combination of coagulation, flocculation, adsorption, and biological treatment.

Classification of Printing & Dyeing Wastewater

Type	Industries	Main Pollutants	Recommended Chemicals
Textile Dyeing Wastewater	Garment dyeing, weaving factories	Reactive dyes, TSS, COD	PAC + PAM + Activated Carbon + PFS
Digital Printing Wastewater	Inkjet printing, fabric labeling	Organic binders, resins	Cationic PAM + Aluminum Sulfate
Packaging Printing Wastewater	Corrugated box printing, plastic bags	Ink, emulsions, surfactants	PAC + PDADMAC
Screen Printing Wastewater	Paint, pigments, slurry ink	Toxic & organic residues	PAC + PAM + Activated Carbon

Recommended Chemical Process

Stage	Product	Function
Coagulation	PAC / PFS	Turbidity reduction, initial sedimentation
Flocculation	PAM (anionic/cationic)	Settles suspended solids
Decolorization	Activated Carbon / PDADMAC	Adsorbs dyes & organic color
COD Reduction	Glucose / Sodium Acetate	Improves biodegradability

Packaging & Storage

Product	Packaging	Storage Notes
PAC	25kg woven bag	Keep dry & ventilated
PAM	25kg woven bag or kraft bag	Avoid direct sunlight
PFS	25kg woven bag	Store in covered area
Activated Carbon	25-50kg bags	Seal to prevent moisture

Product Usage Guide

⚪PAC solution: 10% stock solution, adjust based on turbidity

⚪PAM needs to be dissolved at 0.1–0.3% concentration

⚪PDADMAC is ideal for dye-loaded effluents

⚪Use multi-layer filtration with activated carbon for efficient decolorization

See our PAC & PAM video demonstration on YouTube: How PAC + PAM Work on Dyeing Wastewater

Client Case Studies

Region	Type	Issue	Chemical Solution
Bangladesh	Textile Dyeing	>300 Pt-Co color, high COD	PAC + PAM + AC reduced 85% color
Croatia	Digital Printing	Sludge does not settle	Cationic PAM improved floc density
Peru	Packaging Printer	Ink waste difficult to treat	PAC + PDADMAC + AC passed standard

FAQ – Printing & Dyeing Wastewater Chemicals

Q1: What’s the best decolorizing agent for dye wastewater?
A1: PAC or PFS paired with PDADMAC are highly recommended.

Q2: Which type of PAM should I use?
A2: Cationic PAM is preferred for anionic dyes; jar test suggested for optimal results.

Q3: How often should activated carbon be replaced?
A3: Granular carbon: 3–6 months depending on surface load and COD value.

Q4: Why use sodium acetate or glucose?
A4: To boost biodegradability by providing additional carbon sources.

⚪How to Optimize PAC & PAM in Dyeing Effluent Treatment

⚪Best Practices for Activated Carbon Application in Wastewater

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Water Treatment Chemicals

Decoloring Agent Water Treatment

Anionic Polyacrylamide

Cationic Polyacrylamide

Nonionic Polyacrylamide

Polyaluminium Chloride

Antifoaming Agent

Polymer Coagulant

Polymer Flocculant

Alumina Flocculant

Drilling Polymer

Mining Flocculants

Water Treatment Chemicals

Decoloring Agent Water Treatment

Anionic Polyacrylamide

Cationic Polyacrylamide

Nonionic Polyacrylamide

Polyaluminium Chloride

Antifoaming Agent

Polymer Coagulant

Polymer Flocculant

Alumina Flocculant

Drilling Polymer

Mining Flocculants

Solutions Details

Paper printing and dyeing effluent treatment solution

Paper printing and dyeing effluent treatment solution

Classification of Printing & Dyeing Wastewater

Recommended Chemical Process

Packaging & Storage

Product Usage Guide

Client Case Studies

FAQ – Printing & Dyeing Wastewater Chemicals

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