Videos › Decolorizing Flocculant — Bulk Shipment in IBC Tanks
Decolorizing Flocculant — Bulk Shipment in IBC Tanks
TL;DR A decolorizing flocculant — also called a water decoloring agent — removes the dissolved colour that PAC and PAM alone cannot. Its cationic charge binds the anionic dye chromophores in textile, dyestuff and printing wastewater; PAC then coagulates the bound dye into micro-flocs and PAM flocculates them into large, fast-settling flocs. This shipment is leaving the factory in heavy-duty IBC tanks, the standard bulk pack for safe international transport and easy on-site dosing.
What you'll see in this video
- A bulk order of decolorizing flocculant being loaded at the VCYCLETECH factory.
- Filling into heavy-duty IBC tanks for safe transport and easy site handling.
- Factory-direct dispatch — every consignment with a COA and MSDS.
What a decolorizing flocculant is
A water decoloring agent is a highly cationic polymer (typically a quaternary polyamine type) made for one job conventional coagulants do badly: removing dissolved colour. Dye molecules in dyeing effluent carry a negative charge and stay in solution, so a coagulant that targets suspended solids leaves the water coloured. The decolorant neutralises and binds those chromophores into insoluble complexes that can then be settled out — which is why it is dosed before the coagulant. See wastewater decolorization for the full method.
Decolorant vs PAC vs PAM — who does what
These three are complements, not alternatives, and confusing them is the usual reason a decolorization programme underperforms.
| Decoloring agent | PAC (coagulant) | PAM (flocculant) | |
|---|---|---|---|
| Targets | Dissolved dye / colour | Colloids, turbidity, some COD | Existing micro-flocs |
| Mechanism | Charge-binds chromophores | Charge neutralisation | Polymer bridging |
| Dosing order | 1st | 2nd | 3rd |
| Effect if used alone | Colour drops, floc weak | Turbidity drops, colour stays | Little — needs flocs to bridge |
| Typical charge | Strongly cationic | Cationic (inorganic) | Anionic / cationic / nonionic |
Dosing sequence
Set each dose by jar test — overdosing the decolorant can re-stabilise the colloids and reverse the charge. For heavy colour, an organic coagulant such as PolyDADMAC can carry part of the load.
Which wastewater needs it
Textile dyeing and printing mills, dyestuff and pigment plants, denim and indigo washing, paper mills, and ink or coating works — anywhere colour and COD survive conventional treatment or a discharge colour limit applies. See industrial & municipal wastewater, and the jar-test demos in our textile effluent decolorization and denim wastewater videos.
IBC tanks — packaging and logistics
The tanks in this video are IBCs (intermediate bulk containers), normally 1,000 L. They are the practical bulk pack for liquid water-treatment chemicals: robust enough for international sea freight, safely stackable, and simple to connect straight to a dosing pump on site — no decanting from drums. Drums and other volumes are available on request.
Buying decolorant in bulk
VCYCLETECH is a China-based water decoloring agent manufacturer and supplier shipping IBC and full container loads worldwide, with reliable logistics and technical support. Every consignment carries a COA and MSDS, the plant is ISO 9001 / 14001 / 45001 certified, free laboratory samples are available for jar testing, and OEM/ODM packaging is supported. See our quality & certifications.
Frequently asked questions
What is a decolorizing flocculant?
A decolorizing flocculant, also called a water decoloring agent, is a cationic polymer that removes dissolved colour from wastewater. Textile, dyestuff and printing effluent is coloured by anionic dye chromophores that ordinary coagulants leave behind; the decolorant neutralises and binds them so they can be coagulated, flocculated and settled out.
How does a decoloring agent work with PAC and PAM?
They do three different jobs in sequence. The decoloring agent binds the dissolved dye chromophores first, PAC (poly aluminium chloride) then coagulates the destabilised dye and colloids into micro-flocs, and a trace of PAM (polyacrylamide) bridges those into large, dense flocs that settle fast. Dosing them in that order is what gives rapid, clean separation.
Which industries need a decolorizing flocculant?
Any process with high-colour effluent: textile dyeing and printing mills, dyestuff and pigment manufacturing, denim and indigo washing, paper mills, and ink or coating plants. It is used where colour and COD remain after conventional coagulation, and where a discharge colour limit has to be met.
What packaging does the decolorizing flocculant ship in?
It ships in heavy-duty IBC tanks — the standard intermediate bulk container, typically 1,000 litres — which is what this video shows being loaded. IBC tanks are robust for international transport, stack safely, and are simple to connect to a dosing pump on site. Drums and flexitank options are available for other volumes.
Can VCYCLETECH supply bulk decolorant with COA, MSDS and samples?
Yes. VCYCLETECH manufactures water decoloring agents in China and ships bulk IBC and full container loads worldwide, with a batch Certificate of Analysis and MSDS on every consignment, ISO 9001 / 14001 / 45001 certification, free laboratory samples for jar testing, and OEM/ODM service. Email sales@vcycletech.com.
References
- Flocculation — Wikipedia
- Coagulation (water treatment) — Wikipedia
- Intermediate bulk container (IBC) — Wikipedia
- Textile industry — Wikipedia
View the Water Decoloring Agent → Request a quote, COA/MSDS & free sample →
Related: Water Decoloring Agent · PAC · PAM · PolyDADMAC · Coagulants & flocculants · Wastewater decolorization