Polyelectrolyte for paper and pulp mills
Paper machines lose fibre and filler to the white water, and the mill effluent carries the rest. Polyacrylamide helps on both sides: on the machine, and in the effluent plant.
Sunfloc Anionic HQ for regular plant use, or Anionic MQ for smaller plants and trials. Retention duty on the machine often pairs anionic with cationic. Confirm on your own sample with a free jar test.
Retention of fillers and fibres
Paper makers commonly use a combination of anionic and cationic polyacrylamide for retention and drainage. Trials on your own furnish decide the pair and the dose.
Mill effluent
Anionic polyacrylamide is the usual choice for paper mill wastewater clarification after coagulation. Start with Anionic HQ or Anionic MQ.
Fibre recovery and sludge
Recovered fibre and primary sludge often respond to anionic grades; biological sludge from the secondary stage usually needs cationic.
Getting the dose right
Dose on the machine is set by trial; dose in the ETP by jar test. Our calculator converts mg/L into kilograms per day.
Related
Polyelectrolyte dosing guide
Starting doses, solution strength and how to work out kilograms per day.
Read →Not sure which grade suits your water?
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