BWD-01 COD Reduction & Paper Mill Decolorizing Agent Primary Decolorizing Agent Decolorizer Decolourant Water Decoloring Agent
BWD-01 COD Reduction & Paper Mill Decolorizing Agent Primary Decolorizing Agent Decolorizer Decolourant Water Decoloring Agent
Product Overview
BWD-01 Water Decoloring Agent is a high-efficiency primary decolorizing agent specially developed for industrial wastewater color removal, COD reduction, and flocculation treatment applications. The product is widely used in paper mill wastewater treatment, textile dyeing wastewater, pigment wastewater, printing ink wastewater, and chemical wastewater clarification systems.
Paper mill wastewater and industrial colored effluent often contain dissolved organic compounds, lignin residues, dyes, suspended solids, and high COD contaminants that are difficult to remove using traditional inorganic coagulants alone.
BWD-01 Decolorizer Decolourant is designed to solve these treatment challenges by rapidly destabilizing color substances and improving sedimentation efficiency, helping wastewater treatment plants achieve clearer effluent and lower operating costs.
Why Paper Mill and Industrial Wastewater Are Difficult to Treat
Common Wastewater Treatment Challenges
Paper mill wastewater and industrial effluent commonly contain:
- Lignin and organic color compounds
- Printing dyes and pigments
- Suspended solids
- Fine colloidal particles
- High COD substances
- Organic contaminants
Traditional coagulants often cannot effectively remove soluble color molecules and fine suspended particles, especially in high-color wastewater systems.
This may result in:
- Dark final effluent
- Poor discharge compliance
- High sludge production
- Slow sedimentation
- Increased chemical consumption
- Unstable clarification performance
Solution for COD Reduction and Wastewater Decolorization
High-Efficiency Primary Decolorizing Agent
BWD-01 works through strong cationic charge neutralization and polymeric flocculation mechanisms.
The product rapidly reacts with negatively charged organic color compounds, dyes, and suspended particles in wastewater, helping form dense flocs for easier sedimentation or flotation separation.
Treatment performance:
- Color removal efficiency: 50%–99%
- COD reduction efficiency: 50%–80%
- Faster flocculation and settling
- Lower sludge generation
Compared with conventional inorganic coagulants, BWD-01 offers better color removal performance and lower sludge disposal costs.
For difficult wastewater systems, the product is commonly used together with PAC and PAM to improve overall treatment efficiency.
Recommended dosing sequence:
BWD-01 → PAC → PAM
Recommended operating pH:
7.5–8.0
Technical Specifications
| Item | Specification |
|---|---|
| Product Name | BWD-01 Water Decoloring Agent |
| Product Type | Primary Decolorizing Agent |
| Chemical Type | Quaternary Ammonium Cationic Polymer |
| Appearance | Colorless to Yellowish Transparent Liquid |
| Solid Content | ≥55% |
| Specific Gravity | 1.20–1.25 |
| pH Value (30% Solution) | 3–6 |
| Viscosity | 30–250 cps |
| Solubility | Completely Soluble in Water |
| Storage Temperature | 0–35°C |
Technical specifications are based on Bluwat product documentation.
Application Industries
Paper Mill Wastewater Treatment
BWD-01 is widely used in:
- Paper mill wastewater clarification
- Recycled paper wastewater treatment
- Pulp processing wastewater
- Printing paper wastewater
- Paper coating wastewater
The product helps reduce wastewater color and improve COD removal efficiency.
Textile Dyeing Wastewater
Suitable for:
- Reactive dye wastewater
- Textile printing wastewater
- Dyeing wastewater
- Textile finishing wastewater
The product effectively removes soluble dye color and improves sedimentation performance.
Pigment and Printing Ink Wastewater
Also suitable for:
- Pigment wastewater
- Printing ink wastewater
- Industrial color wastewater
The product improves clarification and color reduction efficiency.
Other Industrial Wastewater
Applicable for:
- Landfill leachate treatment
- Chemical wastewater
- Fiber bleaching wastewater
- Wood processing wastewater
- Coking wastewater
How It Works
Working Principle of Water Decoloring Agent
The treatment process mainly includes:
- Charge neutralization
- Organic color destabilization
- Polymer bridging
- Flocculation and sedimentation
After dilution, BWD-01 is added directly into wastewater.
The cationic polymer rapidly adsorbs negatively charged dye molecules and organic particles, helping form large and dense flocs.
These flocs are then removed through sedimentation or dissolved air flotation systems.
For wastewater with high COD or dark color, PAC and PAM are usually combined to improve treatment performance and settling efficiency.
How To Choose the Right Decolorizing Agent
Choose According to Wastewater Characteristics
Different wastewater systems contain different contaminants:
- Paper mill wastewater usually contains lignin and organic color compounds
- Textile wastewater contains reactive and soluble dyes
- Ink wastewater contains fine colloidal particles
Jar testing is strongly recommended before full-scale dosing.
Evaluate COD Reduction Requirements
For wastewater treatment plants with strict discharge requirements, users should evaluate:
- Color removal efficiency
- COD reduction performance
- Sludge generation
- Settling speed
- Overall treatment stability
BWD-01 helps improve clarification while reducing sludge disposal pressure.
Consider Transportation and Packaging Efficiency
55% solid content products provide:
- Higher active ingredient concentration
- Lower transportation cost
- Better storage efficiency
Available packaging:
- 30 kg plastic drum
- 250 kg plastic drum
- 1250 kg IBC tank
Packaging and Storage
Packaging Options
- 30 kg plastic drum
- 250 kg plastic drum
- 1250 kg IBC tank
Suitable for export shipment and industrial bulk handling.
Storage Conditions
- Store in cool and dry conditions
- Avoid direct sunlight
- Keep away from heat and flame
- Storage temperature: 0–35°C
The product is non-flammable and non-explosive under normal industrial storage conditions.
Why Choose Bluwat Chemicals
Professional Manufacturer of Water Treatment Chemicals
Bluwat Chemicals specializes in industrial wastewater treatment chemicals with more than 25 years of manufacturing and export experience.
Our advantages:
- Exported to 80+ countries
- Professional wastewater laboratory
- Daily real wastewater jar testing
- Factory direct supply
- Stable production quality
- OEM customization support
- Technical wastewater treatment solutions
We help customers optimize wastewater treatment efficiency while reducing operating costs and sludge disposal costs.
FAQ
What is a primary decolorizing agent used for?
It is used for removing color, COD, and suspended solids from industrial wastewater systems before secondary treatment processes.
Can BWD-01 reduce COD in paper mill wastewater?
Yes. COD reduction efficiency can typically reach 50%–80%, depending on wastewater characteristics and treatment conditions.
Is BWD-01 suitable for paper mill wastewater treatment?
Yes. The product is widely used for paper mill wastewater clarification and color reduction applications.
Can the product be used together with PAC and PAM?
Yes. The recommended treatment sequence is:
BWD-01 → PAC → PAM
This combination improves flocculation and clarification efficiency.
Is jar testing necessary before application?
Yes. Jar testing is strongly recommended because wastewater composition varies between industries and treatment systems.