Immobilization of cadmium in soil by microbially induced carbonate precipitation with Exiguobacterium undae at low temperature

Deepika Kumari; Xiangliang Pan; Duu-Jong Lee; Varenyam Achal

doi:10.1016/j.ibiod.2014.07.007

Author(s)

Deepika Kumari
Xiangliang Pan
Duu-Jong Lee
Varenyam Achal

Detail(s)

Original language	English
Pages (from-to)	98-102
Journal / Publication	International Biodeterioration and Biodegradation
Volume	94
Publication status	Published - Oct 2014
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.ibiod.2014.07.007 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84905219467&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(ffe89370-e597-4cc4-aec7-dbe31988e119).html

Abstract

Microbially induced carbonate precipitation (MICP) is an advanced biological treatment technology to immobilize heavy metals in form of carbonate salts. In this MICP study, ureolytic Exiguobacterium undae was employed for immobilization of cadmium in contaminated soil at low temperature (10°C). The sequential extraction test revealed conversion of more than 90% of cadmium in the tested soil from the soluble-exchangeable fraction to carbonate-bound fraction in 14 days of treatment. The cadmium may be precipitated in a separate CdCO₃ phase or be co-precipitated in calcite crystals. Activities of urease and dehydrogenase were enhanced during MICP, which were not affected by the testing temperatures. MICP with E. undae is a biological approach that may be worth investigating further to immobilize cadmium in soils of cold regimes. © 2014 Elsevier Ltd.

Research Area(s)

Bioremediation, Dehydrogenase, Heavy metal, Microbial carbonate, Urase

SDG 15 - Life on Land

Bibliographic Note

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Citation Format(s)

[ RIS ] [ BibTeX ]

Immobilization of cadmium in soil by microbially induced carbonate precipitation with Exiguobacterium undae at low temperature. / Kumari, Deepika; Pan, Xiangliang; Lee, Duu-Jong et al.
In: International Biodeterioration and Biodegradation, Vol. 94, 10.2014, p. 98-102.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Kumari, D, Pan, X, Lee, D-J & Achal, V 2014, 'Immobilization of cadmium in soil by microbially induced carbonate precipitation with Exiguobacterium undae at low temperature', International Biodeterioration and Biodegradation, vol. 94, pp. 98-102. https://doi.org/10.1016/j.ibiod.2014.07.007

Kumari, D., Pan, X., Lee, D.-J., & Achal, V. (2014). Immobilization of cadmium in soil by microbially induced carbonate precipitation with Exiguobacterium undae at low temperature. International Biodeterioration and Biodegradation, 94, 98-102. https://doi.org/10.1016/j.ibiod.2014.07.007

Kumari D, Pan X, Lee DJ, Achal V. Immobilization of cadmium in soil by microbially induced carbonate precipitation with Exiguobacterium undae at low temperature. International Biodeterioration and Biodegradation. 2014 Oct;94:98-102. doi: 10.1016/j.ibiod.2014.07.007

Kumari, Deepika ; Pan, Xiangliang ; Lee, Duu-Jong et al. / Immobilization of cadmium in soil by microbially induced carbonate precipitation with Exiguobacterium undae at low temperature. In: International Biodeterioration and Biodegradation. 2014 ; Vol. 94. pp. 98-102.