The use of our Pumice Odour Control Media (Lava Rock) in biofilters and bioscrubbers is increasing worldwide. It is a granular naturally occuring product that is a versatile alternative to traditional media such as mussel shells, plastic media, peat/heather and wood chips for use in biofilters, bioscrubbers and packed towers.
It is used to treat odours emanating from sewage treatment works, wastewater treatment works, industrial processes and industrial effluents. It’s used as the biomass support in the treatment of hydrogen sulphide, mercaptans and volatile organic compounds and has been installed throughout the UK by all the Water Plc’s.
Technical Data Sheet
1. Product Name / Reference
Pumice Odour Control Media
2. Main Intended Use
Odour Control Media in bioscrubbers, biofilters and wet scrubbing systems.
3. Chemical Description
This media contains no free silica
| Compound Element | Chemical Formula | Typical Content |
| Silicon Dioxide | SiO2 | 74.55% |
| Aluminium Oxide | Al203 | 12.45% |
| Potassium Oxide | K2O | 4.50% |
| Sodium Oxide | Na2O | 4.00% |
| Ferric Oxide | Fe2O | <2.00% |
| Calcium Oxide | CaO | <2.00% |
| Magnesium Oxide | MgO | <2.00% |
| Titanium Dioxide | TiO2 | <2.00% |
| Sulphur Trioxide | SO3 | 0.20% |
| Manganese Oxide | MnO | 0.10% |
| Carbon Dioxide | CO2 | 0.10% |
| Ferrous Oxide | FeO | 0.06% |
| Phosphorous Pentoxide | P2O5 | 0.005% |
| Combined Water | H2O+ | 4.35% |
Determined by FAAS
4. Physical Properties
| a. Bulk Density | 600 – 650 kg/m3 |
| b. Melting Point | 1200 oC |
| c. pH Value | 7.0 – 8.0 |
| d. Specific Gravity | 2.40 g/cm3 |
| e. Hardness | 6.5 Mohs |
5. Sizes Available
| Grade | Size |
| Pumice Odour Control Media TN | 10 – 15 mm |
| Pumice Odour Control Media TP | 15 – 25 mm |
| Pumice Odour Control Media TQ | 20 – 30 mm |
| Pumice Odour Control Media TW | 30 – 50 mm |
6. Packaging
Packed in 1.0 cubic metre UV resistant IBC big bags.
Further Information and Technical Support
For further information and case studies please contact us at: info@techfil.co.uk