PWT 3920
- Chemical Family
- Polyacrylamides
PWT 3920 is a very high molecular weight non-ionic polyacrylamide in dry form. It is used as a flocculant in a wide variety of municipal and industrial wastewater treatment applications, and has been successfully applied in liquid/solids separation systems, including clarification and dewatering.
Properties
- Physical Form
- Powder
Product families
Applications
- Water Treatment
Product Families
- Water Treatment Additives
Other characteristics
- Brand
- PWT
- Features
- High Molecular Weight
- Functions
- Flocculant
- Applicable Processes
- Industrial Water Treatment, Water Treatment
- Industrial Water Treatment
- Water Treatment
- Markets
- Industrial
- Use Levels
- max. 3 mg/l
- Appearance
- White powder
- Shelf LIfe
- 2 Years
- Technology
- Industrial Additives & Materials
- Chemical Inventories
- AICS (Australia)
- DSL (Canada)
- ECL (Korea)
- EINECS (EU)
- ENCS (Japan)
- IECSC (China)
- NZIoC (New Zealand)
- PICCS (Phillipines)
- Regulatory Information
PWT 3920 is approved under NSF/ANSI 60 for drinking water treatment.
- Industrial Additives Features
- High Molecular Weight
- Industrial Additives Functions
- Flocculant
- Preparation and Feeding Information
PWT 3920 is a dry polymer that must be pre-diluted in water before use. One method for dilution is adding the polymer into the vortex of a mixed tank at a concentration between 0.1 - 0.5% polymer by weight and then mixing at slow speed (300 rpm maximum). A much better method is to use a dry polymer make down system. A number of commercially available systems will produce excellent results. Polymer solutions should be aged for 30-60 minutes prior to use for best results. Solution shelf life is 8-16 hours.
- Storage, Stability and Handling Information
Suggested in-plant storage life is two years in unopened bags and drums. For best results, store at 32 - 90°F.
Technical data
Table 1 of 1
7 rows| Characteristic | Value | Unit |
|---|---|---|
| Charge | Nonionic surfactants | — |
| Mesh Size (Above #10 Mesh) | max. 2 | % |
| Mesh Size (Below #100 Mesh) | max. 6 | % |
| Viscosity (at 0.1%) | 10.0 | cPs |
| Viscosity (at 0.25%) | 25.0 | cPs |
| Viscosity (at 0.5%) | 100.0 | cPs |
| Bulk Density | 0.75 | — |
