This jar-test video shows denim / textile dyeing wastewater decolorization: a deep-blue indigo dye effluent is treated with a water decoloring agent + PAC (poly aluminium chloride) + PAM (polyacrylamide), which destabilize the dye, form micro-flocs and settle the colour out — leaving crystal-clear water. VCYCLETECH manufactures the decolorant, PAC and PAM used here.

What you'll see in this video

• Deep-blue denim / indigo dyeing wastewater before treatment.
• Dosing the decoloring agent + PAC to destabilize the dye and initiate micro-floc formation.
• PAM flocculating the colour into large flocs that settle, leaving clear water.

How denim / textile dye wastewater is decolorized

Textile dyeing effluent is coloured by dissolved and colloidal dye that carries a negative charge. A cationic water decoloring agent neutralizes and binds the dye; PAC coagulates the destabilized dye and colloids into micro-flocs; then a trace of PAM bridges them into large, fast-settling flocs. For heavy colour an organic coagulant such as PolyDADMAC boosts removal.

Typical decolorization sequence

• 1) Water decoloring agent — neutralize/bind the dye chromophores (jar-test the dose).
• 2) PAC — coagulate dye + colloids into micro-flocs.
• 3) PAM — flocculate into large flocs; settle and separate clear water.

Applications

Denim and textile printing & dyeing effluent, indigo and reactive-dye wastewater, and other high-colour / high-COD streams — see municipal & industrial wastewater treatment. Run a jar test to set the decolorant, PAC and PAM doses.

Why buy decolorant, PAC & PAM from VCYCLETECH

Factory-direct textile-effluent decolorant, PAC and polyacrylamide manufacturer in China — ISO 9001 / 14001 / 45001 certified, a COA with every batch, OEM / ODM and worldwide shipping. See our quality & certifications.

View coagulants & flocculants → Request a quote, sample & COA →

Related: Water Decoloring Agent · PAC · PAM · Textile effluent decolorization video · Jar test