Potential of mercury-tolerant bacteria for bio-uptake of mercury leached from discarded fluorescent lamps

Mohammed H Abu-Dieyeh; Haya M Alduroobi; Mohammad A Al-Ghouti

doi:10.1016/j.jenvman.2019.02.066

Potential of mercury-tolerant bacteria for bio-uptake of mercury leached from discarded fluorescent lamps

J Environ Manage. 2019 May 1:237:217-227. doi: 10.1016/j.jenvman.2019.02.066. Epub 2019 Feb 21.

Authors

Mohammed H Abu-Dieyeh¹, Haya M Alduroobi¹, Mohammad A Al-Ghouti²

Affiliations

¹ Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box: 2713, Doha, Qatar.
² Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, P.O. Box: 2713, Doha, Qatar. Electronic address: mohammad.alghouti@qu.edu.qa.

PMID: 30798040
DOI: 10.1016/j.jenvman.2019.02.066

Abstract

In this study, ten bacterial strains were found to be mercury resistant after their isolation from Qatari coastal sediments. Tolerance was found to be up to 100-150 ppm for five strains. Those strains had optimum growth conditions at salinity level of 10 ppm NaCl and pH 7-8. Starting from a concentration 7.9 ppm of mercury extracted from fluorescent lamps and after 6 days of incubation at 37 °C, two isolated strains HA6 (Bacillus spp.) and HA9 (Acinetobacter sp.) showed 96.7% and 98.9% of mercury bio-uptake efficiency, respectively. Other strains were capable of removing more than 60% of extracted mercury.

Keywords: Bioremediation; Biosorption; Discarded fluorescent lamps; Mercury.

MeSH terms

Bacteria
Household Articles*
Mercury*

Substances

Mercury