SunDec – Decolorant / Colour Removal Polymer Supplier in Erode
Where the Bhavani meets the Cauvery, discharge limits are tight. SunDec binds dye in yarn and fabric processing effluent before the floc is built.
Rivers that set the limits
The town stands at the junction of the Bhavani and the Cauvery, and towns and farmland further down rely on both. Discharge limits are tight as a result, and many units reuse treated water rather than release it.
Dyeing, bleaching and mercerising leave the effluent hot, alkaline, coloured and salty.
Documents for SunDec SC05
Colour out before the floc
The usual treatment is equalisation, pH correction, coagulation, then SunDec SC05 for colour, then a cationic Sunfloc grade for the floc, followed by biological and tertiary treatment. SunDec turns dissolved dye into particles; without that step the colour simply travels through the clarifier.
Common plants and variable inflow
Many small units send effluent to a common plant. A CETP receives something different from every member, which is why its operator should test the equalised stream more often than a single factory would. Dyeing sludge also has to be dewatered before disposal; a cationic grade helps the press.
At about 400 km through Salem, Erode is close enough for small, frequent orders that keep drums fresh. Read our Erode guide.
Two rivers, tight limits
Record colour at the outlet each day. That record shows the unit is controlling its discharge.
SunDec questions from Erode
Does SunDec help with tannery effluent?
Tannery effluent is mainly protein, fat and chromium, handled with a cationic grade. SunDec is for dissolved dye.
How often should a CETP jar-test?
More often than a single plant, because inflow changes with membership load.
How long is the shelf life?
24 months in the original unopened pack.
SunDec in other cities
More on Erode
Start a SunDec trial in Erode
Dyeing units and CETP operators around Erode: send a litre from your equalisation tank for a free jar test.