The Current Landscape

• Textile and dyeing factories are key industrial pollution sources in Dhaka, Narayanganj, and Gazipur.
• More than 60% of small to medium factories lack functional ETPs or operate them intermittently.
• Rivers such as Buriganga, Turag, and Sitalakhya show high turbidity, persistent color, elevated COD and BOD, heavy metals, and non-biodegradable dyes.
• Conventional coagulants such as PAC or alum often struggle with reactive and disperse dye effluents due to complex molecular structures.

Why Color Removal Is Difficult

Color is not only an aesthetic issue. It blocks light penetration, harms aquatic ecosystems, and indicates the presence of toxic or persistent compounds. Many dyes are highly stable, water-soluble, and resistant to biological treatment. Meeting increasingly strict discharge limits requires a targeted physico-chemical approach.

Targeted Decolorizing Chemistry

Specialized cationic polymers neutralize and bind dye molecules to form dense flocs that separate quickly by settling, flotation, or filtration. Used correctly, they reduce color, COD, and suspended solids while improving downstream biological stability.

Spotlight — BWD-01 Water Decoloring Agent BLUWAT Chemicals

BWD-01 is a high-performance cationic polymer developed by BLUWAT Chemicals, with proven application across textile effluents and supply to more than 80 countries.

About BLUWAT Chemicals

With more than two decades in industrial water treatment, BLUWAT provides end-to-end support from jar testing to plant optimization and logistics to site.

Packaging

• 30 kg plastic drum
• 250 kg plastic drum
• 1250 kg IBC tank

Custom packaging can be arranged upon request.

Let’s Build a Cleaner Textile Industry in Bangladesh

As compliance pressure increases, selecting the right chemistry is essential. Whether upgrading an ETP or planning a CETP, BWD-01 can raise treatment performance while optimizing cost.

Need jar test guidance or a quick dosing estimate Contact us and share basic influent data such as color units, COD, pH, and flow.