Soil bacteria that precipitate calcium carbonate: mechanism and applications of the process
Bacteria with ureasic activity are microorganisms found in soil that in presence of urea and calcium, they can produce calcium carbonate, a process known as microbiologically induced calcium carbonate precipitation (MICP). This article discusses this process and its mechanism, as well as bacterial u...
- Autores:
-
Chaparro-Acuña, Sandra Patricia
Becerra-Jiménez, Mónica Liliana
Martínez-Zambrano, José Jobanny
Rojas-Sarmiento, Hugo Alfonso
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2018
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/68107
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/68107
http://bdigital.unal.edu.co/69140/
- Palabra clave:
- 55 Ciencias de la tierra / Earth sciences and geology
63 Agricultura y tecnologías relacionadas / Agriculture
Biomineralization
Bacillus
urease
carbonates
heavy metals
bioconsolidation
biocementation
Biomineralización
Bacillus
ureasa
carbonatos
metales pesados
bioconsolidation
biocementación.
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
| Summary: | Bacteria with ureasic activity are microorganisms found in soil that in presence of urea and calcium, they can produce calcium carbonate, a process known as microbiologically induced calcium carbonate precipitation (MICP). This article discusses this process and its mechanism, as well as bacterial urease, calcium carbonate crystals formed, and factors that affect the efficiency of MICP, as type of bacteria, bacterial cell concentrations, pH, temperature and calcium and urea concentrations. In addition, applications as removal of heavy metals in water, bioconsolidation, biocement and CO2 sequestration are also discussed. |
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