?As filtration technology has made progress, the method has been improved from ?Mono-medium filtration? by use of Filter Sand to ?Dual-media filtration? by use of Anthracite Filter Media together. In addition, there is ?Multi-media filtration? by use of Garnet together, as an advanced filtration method for taking measures against Cryptosporidium, for pretreatment of pure water making, etc. Garnet is a reddish brown mineral having approx. 4g/cm3 of greater specific gravity and exercises it?s performance by using smaller size compared with Filter Sand.
Product | Garnet (for filtration) | Garnet (for support) |
---|---|---|
Size | 0.30 as Effective Size | 1.0 to 2.5 as size range |
Uniformity Coefficient / Content | 1.5 maximum as Uniformity Coefficient | 85% minimum as content |
Appearance | Granular | |
Specific gravity | 3.8 to 4.1g/cm3 |
Note: At your request, we can manufacture Garnet of other sizes.
Packing: 20L in a PE bag, 0.6m3 in a flexible container bag (Palletizing available)
Ingredients | SiO2 | Al2O3 | Fe2O3 | MgO | MnO2 | CaO |
---|---|---|---|---|---|---|
Content | 38.6% | 22.6% | 33.0% | 2.3% | 2.1% | 1.4% |
Note: Since Garnet is a natural mineral, the chemical composition fluctuates.
?Since Garnet has greater specific gravity, if only Gravel is used for the support, layer-mixed condition may occur on the border between Gravel and Garnet. As a result, there must be one-sided flow of filtration and unevenness of Gravel layer surface, and it may be difficult to perform the filtration effect expected.
?In case of using Garnet (for filtration), be sure to use Garnet (for support) just under Garnet (for filtration) as a top layer of support and use Gravel below them.