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Sunfloc Cationic Polyelectrolyte for Sago Starch Effluent in Salem

Starch fines in sago factory effluent settle better with cationic polyacrylamide (PAM) ahead of the lagoon or digester.

fine particlescoagulant: pin flocflocculant: big flocsCationic Sunfloc at a Salem factory
Settle the starch fines first.

Starch effluent

Washing, rasping and starch separation leave effluent that is acidic and rich in starch, and it ferments quickly. Plants settle starch fines first and then treat biologically, often in anaerobic lagoons or digesters. A cationic polymer such as Cationic MQ helps settle the fine organic solids ahead of that step.

Harvest sizing

Sago factories run hardest in the tapioca harvest, when the effluent load peaks and the clarifier works its hardest.

If the plant treats 800 m³ daily at 3 mg/L, the polymer bill is 2.4 kg a day and the make-up tank turns over 2,400 litres at 0.1%. The dosing calculator on this site shows typical ranges.

Practical notes

Check doses at the start of each season with a jar test, since raw material and water quality change. Salem is about 340 km from our Chennai stock and usually a next-day delivery. The Tamil Nadu Pollution Control Board regulates units. For the steel and magnesite works nearby, see anionic polyelectrolyte for Salem.

A worked example for a sago-factory starch effluent stream

Take a sago-factory starch effluent stream: 300 m³ a day at 1.8 mg/L is 0.54 kg of Sunfloc Cationic a day, about 16.2 kg a month. Made up at 0.1%, that is 540 litres of solution a day. These figures are illustrative; a jar test on your own effluent sets the real dose.

Starch ferments fast, so dose soon after washing rather than after the effluent has stood.

Cationic Sunfloc questions from Salem

MQ or HQ for a sago factory?

MQ is often enough; HQ for a large factory.

Does it stop the effluent fermenting?

No. It settles starch fines; the biological stage does the treatment.

Delivery?

Usually next day.

Start a Cationic Sunfloc trial in Salem

Sago and starch factories in Salem: send a litre of effluent before the harvest for a free jar test.

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