Is Your PolyDADMAC Costing You More Than It Should? (5 Common Mistakes)

Oct 27, 2026

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April.Tian
April.Tian
April, Sales Manager of Luterra Advanced Materials. Graduated from Qilu University of Technology. Precise and friendly, she delivers professional full-cycle order service, gaining wide recognition from overseas clients.

Decolorizing high-color, high-organic wastewater is a significant challenge. A poorly chosen or misapplied PolyDADMAC (PDADMAC) can result in poor decolorization, high costs, and process issues.

 

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WT-104 PDADMAC from Luterra Advanced Materials is a cationic organic polymer flocculant with high charge density and good water solubility. It is specifically designed for decolorizing high-color, high-organic wastewater, and can be combined with other coagulants for comprehensive treatment. This guide covers five critical mistakes to avoid when selecting and using PolyDADMAC.

Mistake #1: Using a Product That Can't Achieve High Decolorization Rates

For wastewater with high color, especially from printing, dyeing, or pulping operations, achieving effective color removal requires a high-charge-density cationic polymer.

WT-104 has a color removal rate of ≥95%. Its high cationic charge density effectively neutralizes the negative charges on dye molecules and organic contaminants, leading to their precipitation and removal.

Mistake #2: Overlooking the Synergistic Effect with Inorganic Coagulants

Using PDADMAC alone can be effective but using it as part of a dual treatment train is often more powerful.

WT-104 can be combined with PAC or PFS to achieve both decolorization and flocculation effects. A typical approach is to use an inorganic coagulant for turbidity removal and PDADMAC for targeted color removal, or vice versa.

Mistake #3: Not Selecting the Right Application for Its Strengths

PDADMAC is a specialist, not a generalist. Using it for applications where simple turbidity removal is the goal is not the most economical choice.

WT-104 is specifically designed for decolorizing high-color, high-organic wastewater. Its strengths are in applications like printing and dyeing wastewater, papermaking wastewater and pulping black liquor, and paint and ink wastewater.

Mistake #4: Ignoring Compatibility with Piping and Storage Systems

While not highly corrosive, some products may have compatibility issues with certain materials.

WT-104 has low corrosivity and is mild. PE, PVC, plastic tanks, and stainless steel tanks are suitable. Standard water pipes can be used without special anti-corrosion treatment.

Mistake #5: Incorrect Dilution or Addition Point

Adding the product neat or without proper dilution can lead to localized high concentrations, reducing efficiency and potentially causing issues.

For optimal results with WT-104:

Addition: Use neat or dilute 5–10 times before dosing.

Dosage: 10–100 ppm.

Application: Add to the wastewater stream at a point of good mixing.

 

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WT-104 PolyDADMAC: Product Specifications at a Glance

Parameter Specification
Appearance Colorless to light yellow transparent liquid
Solid content 40%–60%
Viscosity (25°C) 500–5,000 mPa·s
pH (neat solution) 3.0–7.0
Charge density High cationic
Color removal rate ≥95%

Application Scope

WT-104 is specifically designed for:

Decolorization of printing and dyeing wastewater

Treatment of papermaking wastewater and pulping black liquor

Advanced decolorization of municipal sewage

Treatment of paint and ink wastewater

Purification of leather and electroplating wastewater

Tips for Optimal Results

Dosage: 10–100 ppm

Dilution: 5–10 times before dosing

Synergy: Combine with PAC or PFS for dual decolorization and flocculation

Storage: Cool, dry, protect from freezing and sunlight

Frequently Asked Questions

Q: Can it be used together with PAC or PFS?

A: Yes, it can be combined with PAC or PFS to achieve both decolorization and flocculation effects.

Q: Is it corrosive? What type of pipes and storage tanks are suitable?

A: It has low corrosivity and is mild. PE, PVC, plastic tanks, and stainless steel tanks are suitable. Standard water pipes can be used without special anti-corrosion treatment.

Q: Can I get a sample?

A: Yes. Samples and customized formulation support are available. For any process adaptation issues, please contact us for professional solutions.


Ready to achieve high decolorization rates?

Contact Luterra Advanced Materials for a free sample and expert consultation. Our technical team can help you integrate PDADMAC into your treatment program for maximum color removal efficiency. [Get Free Quote / Contact Now]

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