Electricity-reaction–diffusion system for microbially induced carbonate precipitation
Microbially induced carbonate precipitation (MICP) has attracted attention as a novel soil-improvement technique. The precipitation and growth of calcium carbonate on the surface of sand and in its pores can be simulated using the recently proposed numerical simulation techniques. However, these sim...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-10-01
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| Series: | Soils and Foundations |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0038080622001251 |
| _version_ | 1811196891763834880 |
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| author | Ibuki Nishimura Hitoshi Matsubara |
| author_facet | Ibuki Nishimura Hitoshi Matsubara |
| author_sort | Ibuki Nishimura |
| collection | DOAJ |
| description | Microbially induced carbonate precipitation (MICP) has attracted attention as a novel soil-improvement technique. The precipitation and growth of calcium carbonate on the surface of sand and in its pores can be simulated using the recently proposed numerical simulation techniques. However, these simulations have not incorporated certain parameters, such as electrical properties and adsorption. The current study proposes a novel coupling system that considers the adsorption of microorganisms and dissolved ions due to the weak electrostatic field generated on the surface of sand. Additionally, the Michaelis–Menten model was introduced into the system for the enzymatic reaction of ureolytic bacteria, the Monod model for bacterial growth, and a chemotaxis model. To validate the proposed simulation model, previously reported experimental and computational results were compared with the suggested simulation results. Consequently, the calcium carbonate precipitation obtained with the simulation model was 0.335 μmol/mm3 at 10.3 h, which is close to that obtained by the experiment of 0.315 μmol/mm3. Moreover, the spatial distribution of calcium carbonate was consistent with the precipitation pattern of the active bonding structure obtained by the traditional experiment. |
| first_indexed | 2024-04-12T01:07:47Z |
| format | Article |
| id | doaj.art-54ff8fc12d4340038c00a828be38918c |
| institution | Directory Open Access Journal |
| issn | 2524-1788 |
| language | English |
| last_indexed | 2024-04-12T01:07:47Z |
| publishDate | 2022-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Soils and Foundations |
| spelling | doaj.art-54ff8fc12d4340038c00a828be38918c2022-12-22T03:54:13ZengElsevierSoils and Foundations2524-17882022-10-01625101217Electricity-reaction–diffusion system for microbially induced carbonate precipitationIbuki Nishimura0Hitoshi Matsubara1Graduate School of Engineering and Science, University of the Ryukyus, 1 Senbaru, Nishihara, Nakagami, Okinawa 903-0213, JapanSchool of Civil Engineering, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Nakagami-gun, Okinawa 903-0213, Japan; Corresponding author.Microbially induced carbonate precipitation (MICP) has attracted attention as a novel soil-improvement technique. The precipitation and growth of calcium carbonate on the surface of sand and in its pores can be simulated using the recently proposed numerical simulation techniques. However, these simulations have not incorporated certain parameters, such as electrical properties and adsorption. The current study proposes a novel coupling system that considers the adsorption of microorganisms and dissolved ions due to the weak electrostatic field generated on the surface of sand. Additionally, the Michaelis–Menten model was introduced into the system for the enzymatic reaction of ureolytic bacteria, the Monod model for bacterial growth, and a chemotaxis model. To validate the proposed simulation model, previously reported experimental and computational results were compared with the suggested simulation results. Consequently, the calcium carbonate precipitation obtained with the simulation model was 0.335 μmol/mm3 at 10.3 h, which is close to that obtained by the experiment of 0.315 μmol/mm3. Moreover, the spatial distribution of calcium carbonate was consistent with the precipitation pattern of the active bonding structure obtained by the traditional experiment.http://www.sciencedirect.com/science/article/pii/S0038080622001251MICPMicrobial growthReaction–diffusion systemCoupling simulation |
| spellingShingle | Ibuki Nishimura Hitoshi Matsubara Electricity-reaction–diffusion system for microbially induced carbonate precipitation Soils and Foundations MICP Microbial growth Reaction–diffusion system Coupling simulation |
| title | Electricity-reaction–diffusion system for microbially induced carbonate precipitation |
| title_full | Electricity-reaction–diffusion system for microbially induced carbonate precipitation |
| title_fullStr | Electricity-reaction–diffusion system for microbially induced carbonate precipitation |
| title_full_unstemmed | Electricity-reaction–diffusion system for microbially induced carbonate precipitation |
| title_short | Electricity-reaction–diffusion system for microbially induced carbonate precipitation |
| title_sort | electricity reaction diffusion system for microbially induced carbonate precipitation |
| topic | MICP Microbial growth Reaction–diffusion system Coupling simulation |
| url | http://www.sciencedirect.com/science/article/pii/S0038080622001251 |
| work_keys_str_mv | AT ibukinishimura electricityreactiondiffusionsystemformicrobiallyinducedcarbonateprecipitation AT hitoshimatsubara electricityreactiondiffusionsystemformicrobiallyinducedcarbonateprecipitation |