Water Decoloring Agent Manufacturers & Factory serving the Paris market

High-efficiency cationic polymers and coagulants tailored for demanding municipal wastewater remediation and industrial wastewater treatment in the Île-de-France region.

Featured Wastewater Decolorization Agents for Paris Region

Engineered high-performance formulations addressing the stringent purification requirements of the Seine-Normandy Basin.

Paris Market Decoloring Agent WDA

High Efficient Water Decoloring Agent (WDA) - Custom Formulation for Paris Industrial Effluent

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PolyDADMAC for Paris Water Plants

High-Quality Poly(diallyldimethylammonium chloride) (PDADMAC) - Paris Standard Coagulant

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High Quality PAC for Paris Municipalities

High-Quality Poly Aluminium Chloride (PAC) - Premium Solid Granules serving Paris Market

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Cationic Polyacrylamide for Sludge Dewatering Paris

Cationic Polyacrylamide (CPAM) - Sludge Dewatering and Flocculation Agent for Paris Utilities

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REGIONAL ANALYSIS

Paris Industrial Decolorization: Ecological Urgency meets Stringent Regulatory Norms

The Île-de-France administrative region, dominated by the metropolitan density of Paris, presents highly complex wastewater challenges. Bound by the strict mandates of the EU Water Framework Directive (WFD) and regulated locally by the DRIEAT (Direction Régionale et Interdépartementale de l'Environnement, de l'Aménagement et des Transports) and the Seine-Normandy Water Agency (AESN), industrial discharges face zero-tolerance policies on refractory color, chemical oxygen demand (COD), and micro-pollutants.

For major municipal sewage operators like SIAAP (Syndicat Interdépartemental pour l'Assainissement de l'Agglomération Parisienne), managing wastewater treatment plants such as Achères (Seine Aval) demands highly precise chemical pre-treatment and coagulation. Refractory color compounds stemming from the cosmetics manufacturing hub (known as the Cosmetic Valley situated on the outskirts of Paris), regional printing, textile reprocessing plants, and paper manufacturing facilities cannot be removed via standard biological activated sludge alone. Advanced dicyandiamide-formaldehyde-based cationic polymers (Water Decoloring Agents) play a pivotal role in neutralizing anionic color carriers before secondary clarification.

Key Drivers for Color Control in Île-de-France

  • Seine River Cleanup: Prepping water systems for recreational safety and municipal reuse, demanding ultra-low turbidity and complete color eradication.
  • COD Reduction: Reducing refractory dissolved organic carbons associated with polymeric colorants in industrial effluents.
  • Sludge Dewatering Efficiency: Synergistic utilization of decoloring agents with CPAM to limit municipal sludge volumes, keeping waste disposal costs low.
  • REACH & CLP Conformity: Sourcing high-purity chemical auxiliaries that pass rigorous European regulatory toxicity profiles.
CHEMICAL ARCHITECTURE

Mechanisms of Color Removal: Polymer Aggregation & Charge Neutralization

Our water decoloring agents are highly advanced, water-soluble cationic copolymers synthesized through the reaction of dicyandiamide, formaldehyde, and ammonium chloride. These polymers carry a dense concentration of positive charges on their quaternary ammonium backbones, attracting the negatively charged anionic dye molecules (such as reactive, acid, direct, and disperse dyes) present in industrial waste streams.

Once electrostatically neutralized, the dye molecules collapse from their dissolved state into insoluble colloidal micro-flocs. Our formulations then build high-molecular-weight bridges between these micro-flocs, rapidly aggregating them into stable, shear-resistant macro-flocs. When combined with inorganic coagulants like Poly Aluminium Chloride (PAC) or Polymeric Aluminium Ferric Chloride (PAFC), the resulting synergistic effect accelerates sedimentation velocities, reduces sludge moisture content, and clears the water column with a color removal efficiency frequently exceeding 98%.

Macro Industry Applications

Textile & Dyeing

Targeting highly colored reactive dye effluent, stripping complex azo and anthraquinone structures with minimal chemical dose.

Pulp & Paper

Clarifying white water loops and de-inking plant discharges by binding lignin fibers and organic colorants.

Chemical & Pharmaceutical

Treating complex intermediates that contribute to heavy background color and interfere with biological treatment steps.

Cosmetic Processing

Addressing emulsified oils, pigments, and synthetic dyes typical of the thriving Île-de-France cosmetic manufacturing sector.

Wuxi BS Water Treatment Facility
ABOUT WUXI BS WATER TREATMENT

A Technology Leader with 27 Years of Expertise in Water Treatment Chemicals

Founded in 1998, Wuxi BS Water Treatment Chemicals Co., Ltd. possesses advanced production technology and rich management experience. We specialize in producing a series of water treatment products for the purification of drinking water and the remediation of various municipal and industrial wastewater streams.

With a massive production infrastructure capable of producing over 500,000 tons annually, and a dedicated finished product storage warehouse containing up to 20,000 tons of reserve stock, we guarantee stable, worry-free chemical supplies to distributors and municipal procurement departments worldwide, including the competitive European Union markets.

27+
Years Experience
500K+
Annual Sales (Tons)
20K+
Warehouse Reserve
1000+
Global Partners

Product Classification

We manufacture a complete line of high-charge polymers and inorganic coagulants to cover all phases of chemical water purification.

Polymeric Aluminium Ferric Chloride PAFC

Polymeric Aluminium Ferric Chloride (PAFC) - Paris Industrial Coagulant

Technical Sheet
Compound Poly Aluminium Chloride

Compound Poly Aluminium Chloride for Seine River Turbidity Control

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Poly Aluminium Chloride PAC Solid

Poly Aluminium Chloride (PAC) · High Purity Solid Version

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PolyAluminium Chloride PAC Liquid

PolyAluminium Chloride (PAC) · Liquid Version (10%-15% Active)

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High purity PAC-01

High Purity Poly Aluminium Chloride (PAC-01) for Potable Water Systems

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Aluminum Chlorohydrate ACH

High Basicity and High Al2O3 Content Aluminum Chlorohydrate (ACH)

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Cationic Polyacrylamide CPAM

Cationic Polyacrylamide (CPAM) - Flocculant for Sludge Dewatering

Technical Sheet
Anionic Polyacrylamide APAM

Anionic Polyacrylamide (APAM) – High Molecular Weight Flocculant

Technical Sheet

OEM/ODM Services & Technological Strengths

We deliver complete customized technical support from water laboratory testing to commercial chemical scaleup.

Expert Technical Team

We support operators with a professional technical team that conducts site-specific water sample evaluation, chemical dosing jar testing, and optimization processes.

Stable Capacity & Storage

With an annual sales volume exceeding 500,000 tons and a standing finished product warehouse of 20,000 tons, we prevent industrial supply chain disruptions.

Worry-Free Global Logistics

Driven by smart production lines and complete ISO process validation, we manage shipping, custom clearances, and REACH documentations directly to European ports.

Our History & Milestones

For close to three decades, we have pushed structural innovation in water purification polymers.

1998

Factory was officially established to manufacture coagulation agents.

2005

Renamed as Wuxi Bisheng Water Treatment Agent Co., Ltd. with expanded capability.

2007

Chemical products began to be exported overseas through distributors.

2021

Annual export sales exceeded $10 million USD.

2025

Established dedicated global trade division to serve critical centers like Paris directly.

Rewards & Achievements

Wuxi BS maintains compliance with international standards, ensuring consistent, high-purity chemical runs.

ISO Quality Certificate
ISO 9001:2015
Environmental Management Certificate
ISO 14001:2015
Safety Management Certificate
ISO 45001:2018
European REACH Compliance Document
REACH Compliant

Industrial Application Scenarios

Providing engineered answers to targeted environmental situations.

Sewage Treatment Application

SEWAGE TREATMENT

Flocculants and decoloring formulations designed to clarify heavy biological discharges, lowering secondary effluent values.

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Petroleum Industry Flocculants

PETROLEUM INDUSTRY

Emulsion breakers and polymers targeting complex organic oily wastewater, improving separator yields.

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Membrane Process Pretreatment

MEMBRANE PRETREATMENT

Removing colloidals and large organic matrices before MBR, ultrafiltration, or reverse osmosis to prevent severe membrane biofouling.

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Comprehensive Chemical Catalog for European Markets

Explore our full line of functional polymers, inorganic salts, and advanced decoloring resins manufactured in our ISO-regulated plant.

Cationic Water Decoloring Agent

China Cationic Water Decoloring Agent (WDA) for Industrial Wastewater

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Polymeric Aluminium Ferric Chloride

Polymeric Aluminium Ferric Chloride (PAFC) - High Basicity Flocculant

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Anionic Polyacrylamide APAM

Anionic Polyacrylamide (APAM) - Premium Flocculant for Mineral Processing

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Cationic Polymer WDA

High Efficient Water Decoloring Agent (WDA) Cationic Polymer

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PDADMAC Wholesale

Wholesale Poly(diallyldimethylammonium chloride) PDADMAC

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Composite Polyaluminum Chloride

Composite Polyaluminum Chloride (CPAC) Water Treatment Flocculant

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PAC Liquid Transparent

Wholesale PolyAluminium Chloride (PAC) Liquid - 10%-15% Active Ingredient

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PAC Liquid yellow solution

Wholesale PolyAluminium Chloride (PAC) Liquid - Clear to Light Yellow Solution

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Frequently Asked Questions

Crucial chemistry answers for process engineers, plant managers, and environmental regulators.

How does WDA perform against highly complex reactive dye mixtures?
Our Water Decoloring Agent (WDA) contains a highly concentrated cationic quaternary ammonium polymer backbone. Unlike traditional metal salts (such as alum or ferrous sulfate) that struggle with highly soluble reactive dyes, WDA forms direct electrostatic bonds with the sulfonic acid groups of the dyes. This creates immediate insoluble micro-precipitates, achieving color removals above 98% even in mixed color effluents containing azo, phthalocyanine, and anthraquinone dye bases.
Is WDA compatible with existing municipal systems in the Paris region?
Yes. Our WDA formulations are designed for inline dosing before primary clarifiers, sand filters, or flotation units. They act synergistically with common inorganic coagulants like Poly Aluminium Chloride (PAC) or ferric chloride already in use at municipal plants. Dosing WDA in a 1:3 ratio with PAC can reduce the overall inorganic salt consumption by up to 40% while preventing pH depression in the biological basin.
How does the product address REACH compliance and EU environmental criteria?
Wuxi BS Water Treatment maintains full REACH registration for export to EU countries. We perform strict residual monomer audits (ensuring free formaldehyde and dicyandiamide concentrations are well below standard hazardous levels). This ensures compliance with regional DRIEAT standards in Île-de-France and guarantees no eco-toxicity downriver in the Seine.
What is the typical dosage range for paper mill white water clarification?
For pulp and paper mill wastewater containing lignin and dispersed organic colors, the standard dosage ranges from 10 to 80 ppm (parts per million), depending on the molecular weight and charge densities of the contaminants. We recommend a dynamic jar-test protocol to determine the precise charge neutrality point, avoiding over-cationization which could re-disperse the micro-flocs.
Does Wuxi BS provide custom modifications (molecular weight adjustment)?
Yes. We offer fully customized OEM/ODM synthesis services. In our R&D laboratory, we adjust molecular weight averages and charge density ratios to match the particular shear profiles of industrial sludge processing gear (centrifuges, belt press systems) or dissolved air flotation (DAF) plants operated by our partners in the European market.
What is the product shelf-life and recommended storage environment?
Our liquid cationic polymer solutions (Water Decoloring Agents) remain stable for up to 12 months when stored in original, unopened plastic drums or IBC totes. Storage temperatures should be kept between 5°C and 30°C. Do not expose the chemical to direct sunlight or prolonged freezing temperatures to prevent physical stratification or loss of polymer stability.

Latest Corporate News & Industrial Insights

Keep abreast of chemical water treatment advancements, eco-regulations, and logistics updates from Wuxi BS.

Wuxi BS global logistics
Sep 09, 2025

Wuxi BS Water Treatment: Local Solutions to Global Logistics

How Wuxi BS leverages intelligent shipping networks and warehouse management systems to assure fast delivery times to industrial centers in Europe.

Digital feeding equipment
Aug 21, 2025

Introduction of Digital Intelligent Solid Feeding Equipment

Wuxi BS successfully rolled out smart dosing feedback equipment in our solid PAC line to optimize dust-free chemical handling.

Innovation conference
Aug 21, 2025

2025 Innovation Conference for Coagulants and Environmental Polymers

Highlighting recent breakthroughs in biodegradable decolorizing polymers, low-sludge chemical formulations, and green production paths.

Contact Our Water Treatment Engineers

Do you have questions about polymer selection, municipal compliance standards in Île-de-France, or ordering logistics? Wuxi BS Water Treatment Chemicals provides complete laboratory jar testing and custom packaging alternatives. Reach out directly using our contact information below or complete the inquiry form to get a response within 24 hours.

"Providing reliable chemical solutions and full technical support from laboratory scale validation to bulk chemical plant dosing operations since 1998."

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