Polyaluminium Chloride
Conventional clarification of raw water supplies generally involves the removal of suspended colloidal matter through a combination of coagulation, flocculation & sedimentation.
Coagulation involves the neutralisation of the charge of dissolved & suspended particles in the water.
When this occurs, the particles no longer repel each other & can then bind together through the process of flocculation, forming larger particles. These larger particles (or floc) are heavy & quickly settles to the bottom – a process called sedimentation.
Packaging: 25kg
| Description | Typical | Unit |
|---|---|---|
| Appearance | White powder | |
| Aluminium Oxide (Al2O3) | 30.0 min | % |
| Basicity | 40.0 – 60.0 | % |
| pH (1% solution) | 3.0 – 5.0 | |
| Nitrogen | 0.01 max | % |
| Lead (Pb) | 0.001 max | % |
| Chromium (Cr6+) | 0.0005 max | % |
| Arsenic (As) | 0.0002 max | % |
| Cadmium (Cd) | 0.0002 max | % |
| Mercury (Hg) | 0.00001 max | % |
| Water Insolubles | 0.01 max | % |
| NOTE: The mass fraction of As, Cd, Cr6+, Hg, Pb are measured under Al2O3 10% solution | ||