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Atmospheric methane removal by methane-oxidizing bacteria immobilized on porous building materials

Giovanni Ganendra (UGent) , Willem De Muynck (UGent) , Adrian Ho (UGent) , Sven Hoefman (UGent) , Paul De Vos (UGent) , Pascal Boeckx (UGent) and Nico Boon (UGent)
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Abstract
Biological treatment using methane-oxidizing bacteria (MOB) immobilized on six porous carrier materials have been used to mitigate methane emission. Experiments were performed with different MOB inoculated in building materials at high (similar to 20 % (v/v)) and low (similar to 100 ppmv) methane mixing ratios. Methylocystis parvus in autoclaved aerated concrete (AAC) exhibited the highest methane removal rate at high (28.5 +/- 3.8 mu g CH4 g(-1) building material h(-1)) and low (1.7 +/- 0.4 mu g CH4 g(-1) building material h(-1)) methane mixing ratio. Due to the higher volume of pores with diameter > 5 mu m compared to other materials tested, AAC was able to adsorb more bacteria which might explain for the higher methane removal observed. The total methane and carbon dioxide-carbon in the headspace was decreased for 65.2 +/- 10.9 % when M. parvus in Ytong was incubated for 100 h. This study showed that immobilized MOB on building materials could be used to remove methane from the air and also act as carbon sink.
Keywords
Methane-oxidizing bacteria, Bacterial immobilization, Porous building materials, METHANOTROPHIC BACTERIA, CARBONATE PRECIPITATION, SWINE SLURRY, BIOFILTRATION, MICROORGANISMS, INDUSTRY, DYNAMICS, METABOLISM, GASES, CH4, Methane emissionmitigation

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Chicago
Ganendra, Giovanni, Willem De Muynck, Adrian Ho, Sven Hoefman, Paul De Vos, Pascal Boeckx, and Nico Boon. 2014. “Atmospheric Methane Removal by Methane-oxidizing Bacteria Immobilized on Porous Building Materials.” Applied Microbiology and Biotechnology 98 (8): 3791–3800.
APA
Ganendra, G., De Muynck, W., Ho, A., Hoefman, S., De Vos, P., Boeckx, P., & Boon, N. (2014). Atmospheric methane removal by methane-oxidizing bacteria immobilized on porous building materials. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, 98(8), 3791–3800.
Vancouver
1.
Ganendra G, De Muynck W, Ho A, Hoefman S, De Vos P, Boeckx P, et al. Atmospheric methane removal by methane-oxidizing bacteria immobilized on porous building materials. APPLIED MICROBIOLOGY AND BIOTECHNOLOGY. 2014;98(8):3791–800.
MLA
Ganendra, Giovanni, Willem De Muynck, Adrian Ho, et al. “Atmospheric Methane Removal by Methane-oxidizing Bacteria Immobilized on Porous Building Materials.” APPLIED MICROBIOLOGY AND BIOTECHNOLOGY 98.8 (2014): 3791–3800. Print.
@article{4387220,
  abstract     = {Biological treatment using methane-oxidizing bacteria (MOB) immobilized on six porous carrier materials have been used to mitigate methane emission. Experiments were performed with different MOB inoculated in building materials at high (similar to 20 \% (v/v)) and low (similar to 100 ppmv) methane mixing ratios. Methylocystis parvus in autoclaved aerated concrete (AAC) exhibited the highest methane removal rate at high (28.5 +/- 3.8 mu g CH4 g(-1) building material h(-1)) and low (1.7 +/- 0.4 mu g CH4 g(-1) building material h(-1)) methane mixing ratio. Due to the higher volume of pores with diameter {\textrangle} 5 mu m compared to other materials tested, AAC was able to adsorb more bacteria which might explain for the higher methane removal observed. The total methane and carbon dioxide-carbon in the headspace was decreased for 65.2 +/- 10.9 \% when M. parvus in Ytong was incubated for 100 h. This study showed that immobilized MOB on building materials could be used to remove methane from the air and also act as carbon sink.},
  author       = {Ganendra, Giovanni and De Muynck, Willem and Ho, Adrian and Hoefman, Sven and De Vos, Paul and Boeckx, Pascal and Boon, Nico},
  issn         = {0175-7598},
  journal      = {APPLIED MICROBIOLOGY AND BIOTECHNOLOGY},
  keyword      = {Methane-oxidizing bacteria,Bacterial immobilization,Porous building materials,METHANOTROPHIC BACTERIA,CARBONATE PRECIPITATION,SWINE SLURRY,BIOFILTRATION,MICROORGANISMS,INDUSTRY,DYNAMICS,METABOLISM,GASES,CH4,Methane emissionmitigation},
  language     = {eng},
  number       = {8},
  pages        = {3791--3800},
  title        = {Atmospheric methane removal by methane-oxidizing bacteria immobilized on porous building materials},
  url          = {http://dx.doi.org/10.1007/s00253-013-5403-y},
  volume       = {98},
  year         = {2014},
}

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