Sunfloc Cationic Polyelectrolyte for STP Sludge Dewatering in Bengaluru
Excess biological sludge from Bengaluru's apartment and campus STPs dewaters far better with cationic polyacrylamide (PAM) in a 10 kg bag.
Why sludge builds up
Large residential complexes and commercial buildings in Bengaluru treat their own sewage and reuse the water for flushing and gardening. Extended aeration, SBR and MBBR designs dominate, and each keeps growing biomass that must be drawn off as excess sludge; left in, it climbs in the clarifier and fouls the treated water.
Documents for Sunfloc Cationic
Choosing the pack
Smaller STPs use drying beds, bag filters or a small filter press; larger campuses use a screw press or centrifuge. All work better when the sludge is conditioned first. For most apartment plants Cationic MQ in 10 kg bags is the practical pack, and a tech park that presses every day may move to Cationic HQ in 25 kg.
One day's use at 150 m³ and 4 mg/L is 0.6 kg; at 0.1% that works out near 75 L/h of solution through the dosing pump. The dosing calculator on this site shows typical ranges.
Day-to-day
Prepare solution every day or two, stir it gently for 45 to 60 minutes and feed it where the sludge is gently agitated. A sticky cake or slimy filtrate usually means the dose has crept too high. Bengaluru is about 345 km from our Chennai stock and goods usually arrive the next day. See polymer for apartment STPs and our Bengaluru guide.
A worked example for an apartment-campus STP clarification step
Take an apartment-campus STP clarification step: 250 m³ a day at 1.5 mg/L is 0.375 kg of Sunfloc Cationic a day, about 11.25 kg a month. Made up at 0.1%, that is 375 litres of solution a day. These figures are illustrative; a jar test on your own effluent sets the real dose.
Many campus plants have no make-up tank. A small drum with a stirrer and a metering pump is enough.
Cationic Sunfloc questions from Bengaluru
How long does a bag last?
At small doses, a 10 kg bag lasts weeks in an apartment plant.
Sticky cake: more or less polymer?
Usually less. A sticky cake or slimy filtrate points to overdosing.
How quickly can I get it?
Usually the next day.
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Apartment, campus and tech park STPs in Bengaluru: send a litre of sludge liquor for a free jar test.