Product Range
The Spruce Filter™ has considerable advantages over competitive products:
- Has a unique self layering filtering media that does not need to be changed, removes the cost of renewable filter elements; there is no costly down time for removing clogged filter media, as can happen with sand filtration.
- Provides a portable unit for immediate safe drinking water in disaster areas which can be manually operated in extreme conditions.
- Represents a particle removal efficiency of better than 99.954%, removing pathogens down to 0.2 microns
- Can maintain stable commercial output of up to 180,000 litres per hour, and 5 times faster than Rapid Sand and with improved operational safety with pressures at 5-6psig
- Can filter waste, river or contaminated water to a standard suitable for re-use
- Successfully operate throughout the pH range from 3 to 12
- Faster, more efficient low volume backwash operation
These advantages set the Spruce Filter apart from competitive products and can be supplied as mobile or fixed solutions that can filter down to 0.2 microns with 99.95% removal of pathogens and a maintainable commercial output.
Spruce Media
The filter bed is made up of 4 layers of inert natural media that have an increasing density, a decreasing particle size and specific shape factor.
Suspended Solids Reduction
Suspended Solid Reduction
Filter Type |
Max Velocity through bed (m/hr) |
Max sus-solids loading (mg/l) |
Avg sus-solids remaining |
Retained particle size after backwash |
|
Spruce |
50 |
500 |
0.2 |
0.5 |
|
Rapid Sand |
10 |
100 |
3 |
10 |
|
Cartridge |
14 |
5 | 0.6 |
3 |
|
Crossflow |
8 |
50 |
3.2 |
6 |
|
Anthracite |
9 |
100 |
50 |
15 |