This video demonstrates paper mill wastewater treatment using a water decoloring agent together with PAC (poly aluminium chloride) and PAM (polyacrylamide) to remove color, COD and suspended solids. VCYCLETECH is a China-based manufacturer of decoloring agents, coagulants and flocculants for paper, textile and dyeing wastewater.

What you'll see in this video

• Dark, colored paper mill effluent before treatment.
• Dosing of water decoloring agent + PAC + PAM and rapid floc formation.
• Clear, decolorized water after coagulation, flocculation and settling.

How the decolorization works

Paper mill and dyeing wastewater carries dissolved dyes and lignin that ordinary coagulants alone cannot remove. A cationic water decoloring agent neutralizes the anionic dye molecules; PAC coagulates the fine colloids; and a small dose of PAM bridges the destabilized particles into large, fast-settling flocs — together cutting color and COD sharply.

Typical dosing sequence

• 1) Decoloring agent — neutralize the dye charge (jar-test to the target color removal).
• 2) PAC — coagulate colloids and suspended solids.
• 3) PAM — flocculate and settle; clarify the supernatant.

Applications

Paper & pulp mills, textile dyeing, printing and ink wastewater, and other high-color industrial effluent.

Why choose VCYCLETECH

Factory-direct manufacturer, ISO 9001 / 14001 / 45001 certified, a COA with every batch, OEM / ODM and worldwide shipping. See our quality & certifications.

View the Water Decoloring Agent → Request a quote, sample & COA →

Related products: PAC · PAM · PolyDADMAC · All coagulants & flocculants