Polyelectrolyte for municipal water treatment
A flocculant aid for water treatment plant clarifiers, used with a coagulant such as alum or PAC.
Sunfloc Anionic HQ for regular plant use, or Anionic MQ for smaller plants and trials. Confirm on your own sample with a free jar test.
What it does in a water plant
Alum or PAC is added first to coagulate turbidity. A small dose of polyelectrolyte then strengthens and enlarges the flocs so they settle faster and carry less carry-over onto the filters. Dose after rapid mix and before the flocculation or settling stage.
Typical starting doses
| Raw water | Anionic, mg/L | Cationic, mg/L |
|---|---|---|
| Clean, below 20 NTU | 0.1 – 0.3 | 0.2 – 0.5 |
| Moderate, 20–100 NTU | 0.2 – 0.8 | 0.5 – 1.5 |
| High, above 100 NTU | 0.5 – 1.5 | 1 – 3 |
Coagulants for water plants (alum, PAC, ferric chloride, disinfectants) are listed on surajchemicals.com. Tender or utility supply: contact us for documents and delivery schedules.
Where this work clusters
Not sure which grade suits your water?
Send us a one-litre sample or describe your process. We test it in our lab free of charge and recommend a grade and starting dose.