Methane Oxidation Efficiency in Biofiltration Systems with Different Moisture Content Treating Diluted Landfill Gas

Niccolò Frasi, Elena Rossi, Isabella Pecorini and Renato Iannelli
Additional contact information
Niccolò Frasi: DIEF—Department of Industrial Engineering, University of Florence, 50139 Florence, Italy
Elena Rossi: DESTEC—Department of Energy, Systems, Territory and Construction Engineering, University of Pisa, 56122 Pisa, Italy
Isabella Pecorini: DESTEC—Department of Energy, Systems, Territory and Construction Engineering, University of Pisa, 56122 Pisa, Italy
Renato Iannelli: DESTEC—Department of Energy, Systems, Territory and Construction Engineering, University of Pisa, 56122 Pisa, Italy

Energies, 2020, vol. 13, issue 11, 1-15

Abstract: This study investigates the influence of moisture content on the potential oxidation efficiency of methane (CH 4 ) of biofiltration systems treating landfill gas containing high oxygen concentrations. Column tests filled with compost with different moisture contents (20%, 30%, and 40%) loaded with different methane flows were set up on a laboratory scale. Analyzing the results the following evidences can be summarized: With low methane load (<100 g CH 4 m −2 d −1 ), a moisture content of 20% was not enough to support bacterial activity, while a moisture content of 40% advantaged the compost respiration assisting it to become the dominating process; with higher methane load (100–300 g CH 4 m −2 d −1 ), a moisture content of 30% resulted in an optimal value to support methanotrophic activity showing the highest CH 4 concentration reduction; moving on to a CH 4 load above 300 g CH 4 m −2 d −1 , the inhibition of methanotrophic activity emerged independently to the moisture content of the filter media. The optimal configuration is obtained for a moisture content of 30% and in the case of flows below 200 g CH 4 m −2 d −1 for which the oxidation efficiency results higher than 80%.

Keywords: methane mitigation; oxidation efficiency; column tests; compost; biofilter; diluted landfill gas (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/11/2872/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/11/2872/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:11:p:2872-:d:367493

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().