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Sunfloc Cationic Polyelectrolyte for Tannery Effluent in Ranipet and Vellore

Protein, fat and fine solids from the Palar valley tanneries need cationic polyacrylamide (PAM) to flocculate before the biological stage.

cationic Sunflocconditioned sludgefiltrate drainsdry cakeCationic Sunfloc at a tannery CETP
Dense tannery sludge releases water when it is conditioned.

A worked example for a tannery primary clarifier

Take a tannery primary clarifier: 700 m³ a day at 3.0 mg/L is 2.1 kg of Sunfloc Cationic a day, about 63 kg a month. Made up at 0.1%, that is 2,100 litres of solution a day. These figures are illustrative; a jar test on your own effluent sets the real dose.

Protein and fat carry charge. Confirm the pH and the screening before you judge the polymer.

Why tannery effluent wants a cationic grade

Soaking, liming and unhairing give a salty, alkaline stream with hair, protein, fat and sulphide, and chrome tanning adds trivalent chromium. Once the stream is equalised and coagulated, Cationic HQ pulls protein, fat and fine solids into big flocs that settle in the primary clarifier and spare the biological stage.

The sludge problem

Tannery CETPs generate a lot of dense sludge. Conditioned with cationic polymer, the sludge releases more water in a filter press or centrifuge, and the volume and cost of disposal fall.

At 6,000 m³/day and 3 mg/L the arithmetic gives 18 kg of polymer a day; made up at 1 g/L the pump moves roughly 750 L/h. Your own dose comes from a jar test.

Same-day supply

Ranipet is about 110 km from our Chennai stock, with Ambur about 190 km, so same-day or next-day supply is often possible. Chrome-bearing liquors should be kept separate for recovery. The Tamil Nadu Pollution Control Board regulates CETPs; see our guide and SunMac for Ranipet and Vellore.

Cationic Sunfloc questions from Ranipet and Vellore

Do I need HQ for a CETP?

A CETP that presses daily usually prefers HQ in 25 kg bags.

Does the polymer remove chromium?

No. Chrome is handled by segregation and recovery; the polymer helps the solids settle and dewater.

How far is Ranipet?

About 110 km, often same-day or next-day delivery.

Start a Cationic Sunfloc trial in Ranipet and Vellore

CETPs and tanneries in the Palar valley: send a litre of equalised effluent for a free jar test.

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