BWD-01 Dicyandiamide Based Decolorizer Decolourant for Printing Ink Wastewater
BWD-01 Dicyandiamide Based Decolorizer Decolourant for Printing Ink Wastewater
Product Overview
BWD-01 Dicyandiamide Based Decolorizer Decolourant is a high-efficiency organic cationic polymer specially developed for printing ink wastewater treatment, industrial wastewater decolorization, COD reduction, and coagulation applications. The product is widely used for treating water-based ink wastewater, pigment wastewater, textile dyeing wastewater, paper mill wastewater, and other high-color industrial effluents.
Printing ink wastewater often contains fine pigment particles, resin compounds, organic dyes, emulsified substances, and suspended solids that are difficult to remove through conventional inorganic coagulants alone.
BWD-01 Water Decoloring Agent is designed to rapidly destabilize color substances and improve flocculation efficiency, helping wastewater treatment systems achieve clearer effluent and lower sludge generation.
Why Printing Ink Wastewater Is Difficult to Treat
Common Challenges in Ink Wastewater Treatment
Printing ink wastewater usually contains:
- Organic pigments
- Water-based colorants
- Resin particles
- Fine colloids
- Suspended solids
- High COD organic contaminants
Compared with normal industrial wastewater, ink wastewater often has:
- Strong residual color
- Stable colloidal systems
- Slow sedimentation
- Difficult clarification
- High treatment chemical demand
Traditional coagulants may not effectively remove dissolved color and fine particles, especially in wastewater containing water-based printing inks.
Without effective pretreatment, wastewater treatment systems may experience unstable discharge quality and excessive sludge production.
Solution for Printing Ink Wastewater Treatment
High-Efficiency Dicyandiamide Based Decolourant
BWD-01 works through strong cationic charge neutralization and polymer flocculation mechanisms.
The product rapidly reacts with negatively charged pigment particles, dyes, and colloids in wastewater, helping destabilize color substances and improve coagulation performance.
Treatment performance:
- Color removal efficiency: 50%–99%
- COD reduction efficiency: 50%–80%
- Faster flocculation and settling
- Lower sludge generation
Compared with traditional inorganic coagulants, BWD-01 provides stronger color removal capability and more stable clarification performance for printing ink wastewater systems.
For difficult wastewater conditions, the product is commonly used together with PAC and PAM.
Recommended treatment 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 | Dicyandiamide Based Decolorizer |
| 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
Printing Ink Wastewater Treatment
Widely used for:
- Water-based ink wastewater
- Flexographic printing wastewater
- Packaging printing wastewater
- Gravure printing wastewater
- Ink manufacturing wastewater
The product effectively removes pigment color and improves wastewater clarification.
Pigment and Color Chemical Wastewater
Suitable for:
- Pigment manufacturing wastewater
- Industrial color wastewater
- Paint and coating wastewater
The product improves settling speed and coagulation efficiency.
Textile Dyeing Wastewater
Also applicable for:
- Reactive dye wastewater
- Textile printing wastewater
- Fabric dyeing wastewater
The product effectively reduces soluble dye color and COD.
Other Industrial Wastewater
Can also be used for:
- Paper mill wastewater
- Landfill leachate treatment
- Chemical wastewater
- Fiber bleaching wastewater
How It Works
Working Principle of Dicyandiamide Based Decolorizer
The treatment process mainly includes:
- Charge neutralization
- Pigment destabilization
- Polymer bridging
- Flocculation and sedimentation
After dilution, BWD-01 is dosed directly into wastewater.
The cationic polymer rapidly adsorbs negatively charged pigment particles and dyes, helping form large and dense flocs.
The flocs are then removed through sedimentation or dissolved air flotation systems.
For wastewater with high COD or strong residual color, PAC and PAM are commonly combined to improve treatment performance and sedimentation efficiency.
How To Choose the Right Ink Wastewater Decolorizer
Choose According to Ink Wastewater Characteristics
Different ink wastewater systems contain different contaminants:
- Water-based inks contain stable emulsified particles
- Pigment wastewater contains fine suspended solids
- Printing wastewater may contain resin compounds
Jar testing is strongly recommended before full-scale dosing.
Evaluate Color Removal Efficiency
A suitable decolorizer should provide:
- Strong color removal capability
- Stable coagulation
- Fast sedimentation
- Lower sludge generation
- Improved effluent clarity
BWD-01 helps optimize wastewater treatment efficiency while reducing operating costs.
Consider Transportation and Packaging
55% solid content products help:
- Reduce transportation cost
- Increase active ingredient concentration
- Improve 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 has more than 25 years of manufacturing and export experience in industrial water treatment chemicals.
Our advantages:
- Exported to 80+ countries
- Daily real wastewater jar testing support
- Professional wastewater laboratory
- Factory direct supply
- Stable product quality
- OEM customization capability
- Technical wastewater treatment support
We help customers optimize wastewater clarification efficiency while reducing sludge disposal pressure and chemical consumption.
FAQ
What is a dicyandiamide based decolorizer used for?
It is used for removing color, COD, pigments, and suspended solids from industrial wastewater systems, especially printing ink wastewater and textile wastewater.
Is BWD-01 suitable for water-based printing ink wastewater?
Yes. The product is widely used for water-based ink wastewater treatment and pigment wastewater clarification.
Can BWD-01 reduce COD?
Yes. COD reduction efficiency can typically reach 50%–80%, depending on wastewater characteristics and treatment conditions.
Can the product be used together with PAC and PAM?
Yes. The recommended treatment sequence is:
BWD-01 → PAC → PAM
This combination improves coagulation and sedimentation efficiency.
Is jar testing necessary before application?
Yes. Jar testing is strongly recommended because wastewater composition varies between industries and treatment systems.