Effects of different calcium salts on calcium carbonate crystal formation by Sporosarcina pasteurii KCTC 3558

Title
Effects of different calcium salts on calcium carbonate crystal formation by Sporosarcina pasteurii KCTC 3558
Authors
소재성; 정진훈
Keywords
bioconsolidation, calcium salts, calcium carbonate crystals, Sporosarcina pasteurii
Issue Date
2013
Publisher
BIOTECHNOLOGY AND BIOPROCESS ENGINEERING
Series/Report no.
BIOTECHNOLOGY AND BIOPROCESS ENGINEERING; vol.18 no.5 startpage 903 endpage 908
Abstract
We examined the effectiveness of using different calcium salts for bioconsolidation. Four calcium salts were chosen based on their applicability and solubility. Initial experiments demonstrated that the addition of any calcium salt had a negative effect on the urease activity of S. pasteurii. Microscopic examinations elucidated the morphological and structural differences of the calcium carbonate (CaCO3) crystals induced. Calcite and vaterite are the prominent forms of CaCO3 detected according to X-ray diffraction (XRD) analysis. Bioconsolidated sand samples were able to significantly resist water flow through a column compared to the non-treated samples. Also, in a tightness test, the differences in the ability to retain water within columns were observed among the samples tested. Moreover, despite the differences, the calcium salts tested still bound the sand together to form blocks. Our results further explain the influence of multiple factors in crystal formation and sand bioconsolidation effectiveness.
URI
http://dspace.inha.ac.kr/handle/10505/31985
ISSN
1226-8372
Appears in Collections:
College of Engineering(공과대학) > Biotechnology (생명공학) > Journal Papers, Reports(생명공학 논문, 보고서)
Files in This Item:
33604.pdfDownload

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse