The Use of Inorganic Packing Materials during Methane Biofiltration

Table 2

Determination of the quantitative parameters.

Parameters	Methods of determination
IL: Volumetric inlet load (g/m^3/h)	𝐶IL=^(CH4)in×𝑄𝑉
X: Conversion (%)	𝐶X=^(CH4)in−𝐶(CH4)out𝐶(CH4)in×100
EC: Elimination capacity (g/m^3/h)	EC=IL×X
ECsp: Specific EC (g/m^2/h)	ECsp=EC𝐴𝑠
𝑃CO2: Carbon dioxide production rate (g/m^3/h)	𝑃CO2=(𝐶(CO2)out−𝐶(CO2)in)×𝑄𝑉

𝐶_CH4: Methane concentration in g/m³; 𝐶_CO2: Carbon dioxide concentration in g/m³; 𝑄 = Volumetric flow rate of air mixture in m³/h; 𝑉: Biofilter volume in m³; 𝐴_𝑠: external specific surface area in m² of packing surface per m³ of biofilter.