PolyDADMAC Flocculation Agent with High Cationic Activity for Wastewater Treatment

PolyDADMAC Flocculation Agent with High Cationic Activity for Wastewater Treatment

BLUWAT PolyDADMAC is a liquid cationic polymer flocculation agent designed for wastewater treatment, effluent clarification, turbidity reduction, color removal support and sludge dewatering.

In wastewater treatment systems, many suspended solids, colloids and organic impurities carry negative surface charges. These charges keep particles dispersed in water and make natural settling difficult. PolyDADMAC provides strong cationic activity to neutralize these charges, destabilize fine particles and help them form larger flocs for easier separation.

With high charge density and stable performance, BLUWAT PolyDADMAC is suitable for municipal wastewater, industrial effluent, textile wastewater, paper mill wastewater, chemical wastewater, mining wastewater, oilfield wastewater and sludge dewatering applications.

Product Overview

BLUWAT BLU DA Series PolyDADMAC is supplied as a colorless to light yellow liquid with 20% to 50% solid content. It is available in different viscosity and molecular weight grades to meet different wastewater treatment conditions.

The liquid form makes it easy to dilute, pump and dose. It can be used alone as an organic cationic coagulant or used together with inorganic coagulants such as Polyaluminium Chloride to improve floc formation and clarification efficiency.

For wastewater treatment plants that need stable chemical performance and flexible dosing operation, Liquid PolyDADMAC is a practical choice for daily operation.

Key Benefits

High Cationic Activity

PolyDADMAC has strong cationic charge density. It can quickly neutralize negatively charged particles, colloids and organic impurities in wastewater, helping improve coagulation and flocculation performance.

Better Wastewater Clarification

By improving particle destabilization and floc formation, PolyDADMAC helps reduce turbidity and suspended solids. Treated water becomes clearer after sedimentation, dissolved air flotation or filtration.

Color Removal Support

For colored industrial wastewater, PolyDADMAC can help destabilize color-causing particles and colloids. It can be used together with decolorizing agent, PAC and PAM to improve color reduction and final effluent clarity.

Improved Sludge Dewatering

PolyDADMAC can support sludge conditioning before mechanical dewatering. It helps improve floc structure, filtrate clarity and sludge-water separation in filter press, belt press, screw press or centrifuge systems.

Easy Liquid Dosing

Liquid PolyDADMAC is easier to handle than powder polymers. It can be diluted quickly and dosed by chemical dosing pumps, which supports stable operation in continuous wastewater treatment systems.

Can Be Used Alone or with PAC

PolyDADMAC can be used alone or combined with Polyaluminium Chloride. In many wastewater treatment systems, the combination can improve floc strength, settling speed and overall treatment stability.

Suitable for a Wide pH Range

PolyDADMAC can adapt to a wide pH range, giving operators more flexibility in different wastewater treatment conditions.

Technical Information

Product Name: PolyDADMAC Flocculation Agent
Chemical Name: Poly Dimethyl Diallyl Ammonium Chloride
Short Name: PolyDADMAC or PDADMAC
CAS Number: 26062-79-3
Appearance: Colorless to light yellow liquid
Ionic Type: Cationic polymer
Solid Content: 20% to 50%
Charge Density: High
Typical pH: 3.0 to 7.0
Specific Gravity at 25°C: 1.01 to 1.10
Application: Wastewater treatment, effluent clarification, turbidity reduction, color removal support and sludge dewatering
Package: 25L plastic drum, 200L plastic drum or 1000L IBC drum

Application Fields

Industrial Wastewater Treatment

Industrial wastewater often contains suspended solids, colloids, organic matter, oil residues, color and difficult-to-settle impurities. PolyDADMAC helps destabilize these contaminants and improves solid-liquid separation.

It is suitable for chemical wastewater, food processing wastewater, textile wastewater, paper mill wastewater, metal processing wastewater and other industrial effluent systems.

Municipal Wastewater Treatment

In municipal wastewater treatment plants, PolyDADMAC can be used for primary clarification, sludge conditioning and suspended solids removal. It helps improve floc formation and supports more stable operation when influent quality changes.

Textile Wastewater

Textile dyeing and printing wastewater may contain dyes, surfactants, auxiliaries and fine suspended solids. PolyDADMAC helps improve clarification and supports color removal when used with decolorizing agent, PAC or PAM.

Paper Mill Wastewater

Paper mill wastewater usually contains fibers, fillers, fine particles and organic color. PolyDADMAC helps neutralize these impurities, improve floc formation and support sludge dewatering.

Chemical Industry Effluent

Chemical wastewater can be complex and unstable. PolyDADMAC can be used as a cationic flocculation agent to improve colloid destabilization, turbidity reduction and pretreatment performance before further treatment.

Mining Wastewater

For coal washing, gold mining, diamond mining and mineral processing wastewater, PolyDADMAC helps remove fine suspended solids and improve process water clarification.

Sludge Dewatering

PolyDADMAC can be used for sludge conditioning before filter press, belt press, screw press or centrifuge. It helps form stronger flocs and supports better water release from sludge.

How PolyDADMAC Works in Wastewater Treatment

Most fine particles and colloids in wastewater are negatively charged. Because of this, they repel each other and remain dispersed in water.

PolyDADMAC provides strong positive charges. After dosing, it hospitalizes the negative surface charges of suspended solids and colloids. Once the particles lose stability, they can gather together and form larger flocs.

These flocs can then be removed by sedimentation, DAF, filtration or sludge dewatering equipment.

This mechanism makes PolyDADMAC effective for wastewater clarification, turbidity reduction, color removal support and sludge conditioning.

Recommended Use Method

For wastewater treatment, PolyDADMAC can be used alone or together with Polyaluminium Chloride.

When used alone, it is recommended to dilute the product to 0.5% to 5% concentration based on solid content before dosing.

The actual dosage depends on wastewater type, pH value, turbidity, suspended solids concentration, color intensity and treatment target. Jar testing is recommended before full-scale application.

The dosing point and mixing speed should be carefully controlled. The product should be mixed evenly with wastewater, but excessive mixing should be avoided after flocs are formed because strong shear may break the flocs.

Typical Wastewater Treatment Process

Step 1: Test wastewater pH, turbidity, color and suspended solids
Step 2: Adjust pH if required by jar test
Step 3: Add PolyDADMAC for charge neutralization
Step 4: Add PAC if stronger coagulation is needed
Step 5: Add PAM if larger flocs and faster settling are required
Step 6: Separate flocs by sedimentation, DAF or filtration
Step 7: Check final effluent quality and optimize dosage

Product Selection Guide

Choose low viscosity grades when easy pumping, fast dilution and lower molecular weight performance are required.

Choose medium viscosity grades for general wastewater clarification and municipal or industrial effluent treatment.

Choose high viscosity grades when stronger floc formation, better sludge conditioning or more difficult wastewater conditions are involved.

For high-color wastewater, oily wastewater, chemical wastewater or sludge dewatering, jar testing is recommended to confirm the most suitable grade and dosage.

Available Liquid PolyDADMAC Grades

BLUWAT supplies Liquid PolyDADMAC in different solid content and viscosity grades.

20% solid content series includes DA 201, DA 202, DA 203, DA 204 and DA 205.

40% solid content series includes DA 401, DA 402, DA 403, DA 404, DA 405, DA 406, DA 407 and DA 408.

45% solid content grade includes DA 451.

50% solid content series includes DA 501, DA 502, DA 503, DA 504, DA 505, DA 506 and DA 507.

Different grades are available from low viscosity to very high viscosity. The suitable grade can be selected according to wastewater composition, suspended solids level, floc requirement, dosing system and treatment goal.

Packaging

BLUWAT Liquid PolyDADMAC is available in:

25L plastic drum
200L plastic drum
1000L IBC drum

Packaging can be selected according to order quantity, storage condition and dosing system requirements.

Storage

Store the product in original sealed containers in a cool and dry place. Keep away from heat, flame and direct sunlight.

Please refer to the product label, TDS and MSDS for detailed handling, storage and shelf life information.

Why Choose BLUWAT PolyDADMAC

BLUWAT Chemicals is a professional manufacturer of water treatment chemicals with more than 25 years of manufacturing experience.

We supply coagulants and flocculants for municipal water, industrial wastewater, textile effluent, paper mill wastewater, mining water, oilfield water treatment and sludge dewatering applications.

Our product range includes PolyDADMAC, Polyamine, Polyaluminium Chloride, Polyacrylamide, Water Decoloring Agent, Aluminum Chlorohydrate and other water treatment chemicals.

BLUWAT PolyDADMAC offers stable quality, flexible grade selection, factory direct supply and technical support for global customers.

Frequently Asked Questions

What is PolyDADMAC?

PolyDADMAC is Poly Dimethyl Diallyl Ammonium Chloride, also known as PDADMAC. It is a high cationic activity polymer used as a flocculation agent and coagulant in water and wastewater treatment.

What is PolyDADMAC used for?

PolyDADMAC is used for wastewater treatment, effluent clarification, turbidity reduction, color removal support, suspended solids removal and sludge dewatering.

Why is high cationic activity important?

High cationic activity helps neutralize negatively charged particles and colloids in wastewater. This improves particle destabilization, floc formation and solid-liquid separation.

Can PolyDADMAC be used with PAC?

Yes. PolyDADMAC can be used alone or together with Polyaluminium Chloride to improve coagulation, floc formation and clarification performance.

Can PolyDADMAC help with color removal?

Yes. PolyDADMAC can support color removal by destabilizing color-causing particles and colloids. For difficult dye wastewater, it is often used with decolorizing agent, PAC and PAM.

Can PolyDADMAC be used for sludge dewatering?

Yes. PolyDADMAC can be used for sludge conditioning and dewatering support before filter press, belt press, screw press or centrifuge.

What is the recommended dilution concentration?

When used alone, PolyDADMAC is usually diluted to 0.5% to 5% concentration based on solid content before dosing.

How do I choose the right grade?

The correct grade depends on wastewater type, suspended solids concentration, pH value, color level, sludge condition, dosing equipment and treatment target. Jar testing is recommended for accurate selection.