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Biogenic concrete protection driven by the formate oxidation by Methylocystis parvus OBBP

The effectiveness of Microbiologically Induced Carbonate Precipitation (MICP) from the formate oxidation by Methylocystis parvus OBBP as an alternative process for concrete protection was investigated. MICP was induced on Autoclaved Aerated Concrete (AAC), the model material, by immersing the materi...

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Autores principales: Ganendra, Giovanni, Wang, Jianyun, Ramos, Jose A., Derluyn, Hannelore, Rahier, Hubert, Cnudde, Veerle, Ho, Adrian, Boon, Nico
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4522566/
https://www.ncbi.nlm.nih.gov/pubmed/26284061
http://dx.doi.org/10.3389/fmicb.2015.00786
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author Ganendra, Giovanni
Wang, Jianyun
Ramos, Jose A.
Derluyn, Hannelore
Rahier, Hubert
Cnudde, Veerle
Ho, Adrian
Boon, Nico
author_facet Ganendra, Giovanni
Wang, Jianyun
Ramos, Jose A.
Derluyn, Hannelore
Rahier, Hubert
Cnudde, Veerle
Ho, Adrian
Boon, Nico
author_sort Ganendra, Giovanni
collection PubMed
description The effectiveness of Microbiologically Induced Carbonate Precipitation (MICP) from the formate oxidation by Methylocystis parvus OBBP as an alternative process for concrete protection was investigated. MICP was induced on Autoclaved Aerated Concrete (AAC), the model material, by immersing the material in 10(9) M. parvus cells mL(−1) containing 5 g L(−1) of calcium formate. A 2 days immersion of the material gave the maximum weight increase of the specimens (38 ± 19 mg) and this was likely due to the deposition of calcium carbonate, biomass, and unconverted calcium formate. The solid deposition mainly occurred in the micropores of the specimen, close to the outer surface. A significantly lower water absorption was observed in the bacterially treated specimens compared to the non-treated ones (up to 2.92 ± 0.91 kg m(−2)) and this could be attributed to the solid deposition. However, the sonication test demonstrated that the bacterial treatment did not give a consolidating effect to the material. Overall, compared to the currently employed urea hydrolysis process, the formate-based MICP by M. parvus offers a more environmentally friendly approach for the biotechnological application to protect concrete.
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spelling pubmed-45225662015-08-17 Biogenic concrete protection driven by the formate oxidation by Methylocystis parvus OBBP Ganendra, Giovanni Wang, Jianyun Ramos, Jose A. Derluyn, Hannelore Rahier, Hubert Cnudde, Veerle Ho, Adrian Boon, Nico Front Microbiol Microbiology The effectiveness of Microbiologically Induced Carbonate Precipitation (MICP) from the formate oxidation by Methylocystis parvus OBBP as an alternative process for concrete protection was investigated. MICP was induced on Autoclaved Aerated Concrete (AAC), the model material, by immersing the material in 10(9) M. parvus cells mL(−1) containing 5 g L(−1) of calcium formate. A 2 days immersion of the material gave the maximum weight increase of the specimens (38 ± 19 mg) and this was likely due to the deposition of calcium carbonate, biomass, and unconverted calcium formate. The solid deposition mainly occurred in the micropores of the specimen, close to the outer surface. A significantly lower water absorption was observed in the bacterially treated specimens compared to the non-treated ones (up to 2.92 ± 0.91 kg m(−2)) and this could be attributed to the solid deposition. However, the sonication test demonstrated that the bacterial treatment did not give a consolidating effect to the material. Overall, compared to the currently employed urea hydrolysis process, the formate-based MICP by M. parvus offers a more environmentally friendly approach for the biotechnological application to protect concrete. Frontiers Media S.A. 2015-08-03 /pmc/articles/PMC4522566/ /pubmed/26284061 http://dx.doi.org/10.3389/fmicb.2015.00786 Text en Copyright © 2015 Ganendra, Wang, Ramos, Derluyn, Rahier, Cnudde, Ho and Boon. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Ganendra, Giovanni
Wang, Jianyun
Ramos, Jose A.
Derluyn, Hannelore
Rahier, Hubert
Cnudde, Veerle
Ho, Adrian
Boon, Nico
Biogenic concrete protection driven by the formate oxidation by Methylocystis parvus OBBP
title Biogenic concrete protection driven by the formate oxidation by Methylocystis parvus OBBP
title_full Biogenic concrete protection driven by the formate oxidation by Methylocystis parvus OBBP
title_fullStr Biogenic concrete protection driven by the formate oxidation by Methylocystis parvus OBBP
title_full_unstemmed Biogenic concrete protection driven by the formate oxidation by Methylocystis parvus OBBP
title_short Biogenic concrete protection driven by the formate oxidation by Methylocystis parvus OBBP
title_sort biogenic concrete protection driven by the formate oxidation by methylocystis parvus obbp
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4522566/
https://www.ncbi.nlm.nih.gov/pubmed/26284061
http://dx.doi.org/10.3389/fmicb.2015.00786
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