SunDec – Decolorant / Colour Removal Polymer Supplier in Karur
Heavy cotton in deep shades means a lot of unfixed dye in Karur's effluent. SunDec binds it into particles ahead of the primary clarifier.
Heavy cotton, heavy loads
Home-furnishing fabrics are heavy cotton, dyed deep and even, frequently with reactive and vat dyes. The wash water therefore carries plenty of salt, alkali and dye that did not fix, and it gets stronger as the shade gets darker.
Whether a Karur unit treats on site or ships to a common plant, the train is much the same.
Documents for SunDec SC05
Colour first, then floc
Dissolved reactive dye passes straight through ordinary coagulation. SunDec SC05 turns the dissolved dye into particles first. Sunfloc Cationic HQ or another cationic grade can then collect the lot into flocs for the primary clarifier.
Metal-salt coagulants add their own weight to the sludge. In many plants SunMac can stand in for part of the coagulant, which trims the sludge that has to be disposed of.
Protecting the RO stage
A plant that reuses its water depends on a clean overflow, because anything carried over fouls the filters and membranes after it. Look at the overflow every day, and run a jar test on the equalisation tank at each change in shade. The Amaravathi and Cauvery pass the town, and the Tamil Nadu Pollution Control Board regulates units. Karur is about a day by road from our Chennai stock via Tiruchirappalli; see the Karur guide.
SunDec questions from Karur
Do deep shades need more SunDec?
Usually yes. Dose follows the effluent, so re-test when shades change.
Does it help the RO?
A clearer clarifier overflow means fewer carried-over solids on filters and membranes.
Is there a pack size?
Drums. Ask about sizes and bulk quantities.
Deep shades, stepwise dose
Raise the SunDec dose in small steps until the colour stops falling, then fix it there.
SunDec in other cities
More on Karur
Start a SunDec trial in Karur
Home-textile dyeing units in Karur: send a litre of equalisation-tank effluent for a free decolorant trial.