Effect of cell density on decrease in hydraulic conductivity by microbial calcite precipitation

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dc.contributor.authorEryuruk, Kagan
dc.date.accessioned2024-02-23T14:29:08Z
dc.date.available2024-02-23T14:29:08Z
dc.date.issued2022
dc.departmentNEÜen_US
dc.description.abstractThe effect of number of cells deposited on decrease in hydraulic conductivity of porous media using CaCO3 precipitation induced by Sporosarcina pasteurii (ATCC 11,859) was examined in columns packed with glass beads in the range of 0.25 mm and 3 mm in diameter. After resting Sporosarcina pasteurii cells were introduced into the columns, a precipitation solution, which consisted of 500 mM CaCl2 and 500 mM urea, was introduced under continuous flow conditions. It was shown that hydraulic conductivity was decreased by formation of microbially induced CaCO3 precipitation from between 8.37 * 10(-1) and 6.73 * 10(-2) cm/s to between 3.69 * 10(-1) and 1.01 * 10(-2) cm/s. The lowest hydraulic conductivity was achieved in porous medium consisting of the smallest glass beads (0.25 mm in diameter) using the highest density of cell suspension (OD600 2.25). The number of the deposited cells differed depending on the glass bead size of the columns. According to the experiments, 7 * 10(-9) g CaCO3 was produced by a single resting cell. The urease activity, which led CaCO3 precipitation, depended on presence of high number of cells deposited in the column because the nutrients were not included in the precipitation solution and consequently, the amount of CaCO3 precipitated was proportional with the cell number in the column. A mathematical model was also developed to investigate the experimental results, and statistical analysis was also performed.en_US
dc.identifier.doi10.1186/s13568-022-01448-0
dc.identifier.issn2191-0855
dc.identifier.issue1en_US
dc.identifier.pmid35939240en_US
dc.identifier.scopus2-s2.0-85135621463en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1186/s13568-022-01448-0
dc.identifier.urihttps://hdl.handle.net/20.500.12452/14554
dc.identifier.volume12en_US
dc.identifier.wosWOS:000837677800001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofAmb Expressen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectColumnen_US
dc.subjectMicrobially Induced Calcium Carbonate Precipitationen_US
dc.subjectNumber Of Cellsen_US
dc.subjectOptical Densityen_US
dc.subjectSporosarcina Pasteuriien_US
dc.subjectMicrobial Cloggingen_US
dc.subjectGlass Beadsen_US
dc.subjectCaco3en_US
dc.subjectHydraulic Conductivityen_US
dc.titleEffect of cell density on decrease in hydraulic conductivity by microbial calcite precipitationen_US
dc.typeArticleen_US

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