New insights into the role of pH and aeration in the bacterial production of calcium carbonate (CaCO₃)
dc.contributor.author | Seifan, Mostafa | en_NZ |
dc.contributor.author | Samani, Ali Khajeh | en_NZ |
dc.contributor.author | Berenjian, Aydin | en_NZ |
dc.date.accessioned | 2017-07-31T22:30:34Z | |
dc.date.available | 2017-04-01 | en_NZ |
dc.date.available | 2017-07-31T22:30:34Z | |
dc.date.issued | 2017 | en_NZ |
dc.description.abstract | Over recent years, the implementation of microbially produced calcium carbonate (CaCO₃) in different industrial and environmental applications has become an alternative for conventional approaches to induce CaCO₃ precipitation. However, there are many factors affecting the biomineralization of CaCO₃, which may restrict its application. In this study, we investigated the effects of pH and aeration as the main two influential parameters on bacterial precipitation of CaCO₃. The results showed that the aeration had a significant effect on bacterial growth and its rise from 0.5 to 4.5 SLPM could produce 4.2 times higher CaCO₃ precipitation. The increase of pH to 12 resulted in 6.3-fold increase in CaCO₃ precipitation as compared to uncontrolled-pH fermentation. Morphological characterization showed that the pH is an effective parameter on CaCO₃ morphology. Calcite was found to be the predominant precipitate during aeration-controlled fermentations, while vaterite was mainly produced at lower pH (up to 10) over controlled-pH fermentations. Further increase in pH resulted in a morphological transition, and vaterite transformed to calcite at the pH ranges between 10 and 12. | |
dc.format.mimetype | application/pdf | |
dc.identifier.citation | Seifan, M., Samani, A. K., & Berenjian, A. (2017). New insights into the role of pH and aeration in the bacterial production of calcium carbonate (CaCO₃). Applied Microbiology and Biotechnology, 101(8), 3131–3142. https://doi.org/10.1007/s00253-017-8109-8 | en |
dc.identifier.doi | 10.1007/s00253-017-8109-8 | en_NZ |
dc.identifier.eissn | 1432-0614 | en_NZ |
dc.identifier.issn | 0175-7598 | en_NZ |
dc.identifier.uri | https://hdl.handle.net/10289/11243 | |
dc.language.iso | en | en_NZ |
dc.publisher | Springer | en_NZ |
dc.relation.isPartOf | Applied Microbiology and Biotechnology | en_NZ |
dc.rights | © Springer-Verlag Berlin Heidelberg 2017.This is the author's accepted version. The final publication is available at Springer via dx.doi.org/10.1007/s00253-017-8109-8 | |
dc.subject | Science & Technology | en_NZ |
dc.subject | Life Sciences & Biomedicine | en_NZ |
dc.subject | Biotechnology & Applied Microbiology | en_NZ |
dc.subject | Bacteria | en_NZ |
dc.subject | CaCO3 | en_NZ |
dc.subject | Concrete | en_NZ |
dc.subject | pH | en_NZ |
dc.subject | Aeration | en_NZ |
dc.subject | Morphology | en_NZ |
dc.subject | SELF-HEALING CONCRETE | en_NZ |
dc.subject | PRECIPITATION | en_NZ |
dc.subject | BIOMINERALIZATION | en_NZ |
dc.subject | MICROORGANISMS | en_NZ |
dc.subject | ENVIRONMENTS | en_NZ |
dc.subject | LIMESTONE | en_NZ |
dc.subject | CAPTURE | en_NZ |
dc.subject | CAVE | en_NZ |
dc.subject | ACID | en_NZ |
dc.title | New insights into the role of pH and aeration in the bacterial production of calcium carbonate (CaCO₃) | en_NZ |
dc.type | Journal Article | |
pubs.begin-page | 3131 | |
pubs.elements-id | 191739 | |
pubs.end-page | 3142 | |
pubs.issue | 8 | en_NZ |
pubs.organisational-group | /Waikato | |
pubs.organisational-group | /Waikato/2018 PBRF | |
pubs.organisational-group | /Waikato/FSEN | |
pubs.organisational-group | /Waikato/FSEN/2018 PBRF - FSEN | |
pubs.organisational-group | /Waikato/FSEN/School of Engineering | |
pubs.organisational-group | /Waikato/FSEN/School of Engineering/2018 PBRF - School of Engineering | |
pubs.publication-status | Published | en_NZ |
pubs.user.info | Berenjian, Aydin (aydinb@waikato.ac.nz) | |
pubs.user.info | Seifan, Mostafa (ms399@students.waikato.ac.nz) | |
pubs.volume | 101 | en_NZ |
uow.verification.status | verified |
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