Liquid PolyDADMAC Water Treatment Polymer

Liquid PolyDADMAC is a linear, cationic quaternary ammonium polymer solution specifically engineered for water treatment applications. Unlike conventional powdered flocculants, Liquid PolyDADMAC Water Treatment Polymer comes as a ready-to-use aqueous solution, eliminating the need for dissolution or aging processes. Leveraging a high-charge-density molecular structure, it rapidly destabilizes impurities and promotes flocculation and sedimentation.

It is compatible with a wide pH range (4.0--10.0) and offers key advantages such as chlorine resistance, gel-free stability, and non-toxic safety. With low dosage requirements, minimal sludge generation, and excellent effluent clarity, it is a cost-effective, next-generation polymer suitable for both drinking water purification and various industrial wastewater treatment scenarios.

Core Functions in Water Treatment

Liquid PolyDADMAC goes beyond simple physical adsorption; it employs a dual mechanism of charge neutralization and colloidal destabilization to resolve common water treatment issues such as turbidity, discoloration, and excessive residual colloids.

1.1 Powerful Charge Neutralization to Eliminate Colloidal Stability

The molecular chains of liquid PolyDADMAC carry a high density of cationic quaternary ammonium groups. These precisely capture negatively charged suspended particles, colloids, and organic pollutants. By rapidly neutralizing surface negative charges and eliminating electrostatic repulsion between particles, the polymer causes stably dispersed impurities to lose their suspension capability, thereby paving the way for flocculation and sedimentation.

1.2 Efficient Flocculation and Agglomeration into Dense, Settlable Flocs

Upon dosing, the polymer rapidly adsorbs tiny impurity particles, aggregating them into large, dense flocs. These flocs settle quickly and resist floating, significantly reducing suspended solids and color. The resulting supernatant is clear with extremely low turbidity, consistently improving effluent quality.

1.3 Enhanced Purification and Decolorization

The product excels at removing organic color and colloidal turbidity in industrial wastewater. It can serve as either a primary coagulant or a coagulant aid, effectively reducing COD, color, and suspended solids (SS), while alleviating the operational load on downstream biochemical and filtration processes.

1.4 Chlorine-resistant and stable; compatible with continuous water purification processes

Liquid PolyDADMAC Water Treatment Polymer possesses inherent chlorine resistance, ensuring it remains active even in the presence of residual chlorine. It is compatible with integrated disinfection, pre-treatment, and advanced treatment processes, maintaining consistent purification performance throughout and avoiding the issues of deactivation or failure common to traditional agents when faced with poor chlorine tolerance or fluctuating operating conditions.

Application points within the wastewater treatment process

2.1 Raw water pre-treatment stage (preferred dosing point)

Applied after water intake and upstream of the sedimentation tank to pre-treat raw water for turbidity, colloids, and natural organic matter. It destabilizes impurities early on, significantly reducing the load on downstream processes; suitable for routine use in municipal waterworks and surface water purification projects.

2.2 Physicochemical coagulation stage

Dosed into mixing and flocculation tanks, it can replace or complement traditional inorganic coagulants (such as PAC). It rapidly facilitates coagulation, shortens flocculation time, and enhances the treatment efficiency of sedimentation tanks.

2.3 Advanced treatment stage

Used for secondary sedimentation tank effluent and final advanced purification steps to remove residual fine colloids and trace color, ensuring effluent meets discharge standards; suitable for operations requiring high environmental discharge standards.

2.4 Downstream treatment of chlorinated wastewater

Can be dosed after the disinfection stage; its excellent chlorine resistance solves problems such as agent deactivation and turbidity recurrence caused by residual chlorine, making it compatible with complete continuous water purification workflows.

Wastewater application across specific industries

Leveraging advantages such as a wide pH operating range, low dosage requirements, and resilience to complex water quality, Liquid PolyDADMAC Water Treatment Polymer offers targeted solutions for the specific challenges of wastewater in various industries, meeting diverse industrial water treatment needs.

3.1 Drinking water and municipal water purification

Safe, non-toxic, and residue-free; suitable for both pre-treatment and advanced purification of potable water. Typical dosages range from 0.2--6 mg/L (or as low as 0.2--1 mg/L when used as a coagulant aid). It efficiently removes turbidity, algae, and natural organic matter from raw water, ensuring stable, compliant effluent quality.

3.2 Textile Printing and Dyeing Wastewater Treatment

Designed to address the characteristics of textile printing and dyeing wastewater—specifically high color, high colloidal content, and significant water quality fluctuations—this product enables rapid decolorization and flocculation. It adapts to varying pH levels without requiring frequent adjustments, thereby significantly reducing operational complexity and chemical costs.

3.3 Papermaking Industry Wastewater Treatment

Effectively captures fine fibers, filler colloids, and organic pollutants in papermaking wastewater, facilitating rapid impurity sedimentation. It improves wastewater recovery rates, supports plant-wide water recycling, and saves on both water resources and discharge costs.

3.4 General Industrial Mixed Wastewater

Suitable for mixed wastewater streams from chemical plants, light industry facilities, and on-site domestic sources. It handles pH fluctuations and conditions involving low levels of chlorine, offering strong compatibility and process adaptability to ensure stable, compliant discharge.

Advantages of Liquid PolyDADMAC over Traditional Flocculants

4.1 Comparison with Inorganic Coagulants (e.g., PAC, PFS)

Traditional inorganic agents require high dosages, generate large volumes of sludge, risk leaving metal residues in the water, and tend to alter pH levels. In contrast, liquid PolyDADMAC requires very low dosages, produces minimal sludge, leaves no metal residues, and does not disrupt the water's pH balance; this results in lower downstream sludge disposal costs and enhanced water safety.

4.2 Comparison with Powdered Polymer Flocculants

Powdered products require specialized dissolving equipment and mixing/aging processes, and are prone to dusting, clumping, and uneven dissolution. Liquid PolyDADMAC is a ready-to-use solution compatible with automated dosing systems; it eliminates dust pollution and dissolution issues, resulting in significant savings on labor and equipment investment.

4.3 Comparison with Standard Chlorine-Resistant, Weakly Cationic Agents

Standard cationic agents often have poor chlorine resistance and a narrow effective pH range, losing efficacy with even slight fluctuations in water quality. This product operates stably across a broad pH range (4.0--10.0), offers excellent chlorine resistance and process tolerance, and is well-suited for complex industrial wastewater conditions.

Water Treatment Performance Standards

5.1 Turbidity Removal

Rapidly settles suspended impurities with low dosage, significantly reducing effluent turbidity and resolving issues such as cloudiness and poor light transmission; the resulting water clarity far exceeds that achieved by conventional chemical treatments.

5.2 Color Removal

Demonstrates precise destabilization and decolorization capabilities against organic color-causing colloids; effectively addresses excessive color in textile printing, dyeing, and chemical wastewater, meeting industry discharge standards.

5.3 Cost-Efficiency

Achieves high-standard purification at ultra-low dosages, resulting in reduced chemical consumption and significantly lower sludge production; extends filtration equipment cleaning cycles and comprehensively lowers O&M costs for water treatment plants.

5.4 Process Stability

Performance remains consistent despite fluctuations in pH or the presence of chlorine; eliminates the need for frequent adjustments to dosage ratios or process parameters, ensuring stable, continuous long-term system operation.

Procurement and Implementation Guidelines

6.1 Selection Recommendations

Standard liquid PolyDADMAC is suitable for typical applications involving drinking water, municipal sewage, and general industrial wastewater; customized specifications are available for complex wastewater—such as high-color, chlorinated, or highly variable streams—to ensure optimal purification results.

6.2 Standard Dosage Reference

Primary coagulation for drinking water: 0.2--6 mg/L; coagulation aid/supplementary purification: 0.2--1 mg/L. Actual dosage should be fine-tuned via bench-scale testing based on raw water turbidity and pollutant levels to avoid waste or insufficient treatment.

6.3 Storage and Transport Standards

Packaging options include standard PE drums and IBC totes, accommodating needs ranging from small-batch sampling to bulk procurement and long-term stockpiling. Store in a sealed container in a cool, dry place, away from strong oxidizing agents. As a non-hazardous product, it faces no special restrictions for sea or land transport, ensuring convenient logistics.

6.4 Shelf Life and After-Sales Support

Liquid PolyDADMAC Water Treatment Polymer has a shelf life of two years under standard storage conditions, maintaining consistent batch performance without separation, gelation, or loss of activity. Ewooan provides sample testing, technical commissioning guidance, and quality assurance for volume supplies, ensuring the stable operation of the customer's project throughout the process.

Why Choose Liquid PolyDADMAC?