Research Article
The Use of Inorganic Packing Materials during Methane Biofiltration
Table 3
Main results for the 3 tested packing materials.
| | PM1 | PM2 | PM3 | | (expanded clay-7 mm) | (rock—5 mm) | (rock—2 mm) |
| | Maximum EC (g/m3/h) | 17 | 38 | 50 | | EC and : Similar tendencies | Yes | Yes | Yes | | Average percentage of CH4 converted into CO2 | 65.8 | 71.2 | 68.0 | | Maximum bed temperature (°C) | 27.2 | 29.1 | 30.6 | | Pressure drop (Pa) | 1 | 2 | 20–25 |
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