Lead-resistant bacteria isolated from oil wastewater sample for bioremediation of lead

Utami, Ulfah and Harianie, Liliek and Dunyana, N.R. and Romaidi, Romaidi (2020) Lead-resistant bacteria isolated from oil wastewater sample for bioremediation of lead. Water Science & Technology, 81 (10). pp. 1-7. ISSN 02731223

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Abstract

Anthropogenic activities such as oil exploration have resulted in an environmental concern as they
are comprised of residual hydrocarbons and metals. Following the hypothesis that endogenous
bacterial communities have enhanced tolerance to heavy metals, we isolated and characterized
culturable lead-resistant bacteria from oil wastewater sample and determined whether they could
reduce lead ions from the medium. The wastewater sample containing indigenous bacteria were taken
out from traditional oil field, Bojonegoro District, East Java, Indonesia and bacteria were cultured
Halomonas complex (HMC) medium containing lead (II) chloride (PbCl2) with different concentration.
Bioaccumulation of lead by heavy-metals resistant bacteria was determined by using atomic
absorption spectrophotometry (AAS). Our result found 21 bacterial strains that resist leading ion, of which one strain (RPb5-3) highly resist to 10 mM. This bacterial strain also exhibited the highest accumulation of Pb, and it could grow at varies temperature or more than their original environment. The bacterial strains could be used for bioremediation of lead toxicity, especially in oil pollutant.

Item Type: Journal Article
Keywords: bioremediation; lead-resistant bacteria; oil wastewater
Subjects: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and management > 050205 Environmental Management
05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and management > 050206 Environmental Monitoring
05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and management > 050207 Environmental Rehabilitation (excl. Bioremediation)
06 BIOLOGICAL SCIENCES > 0605 Microbiology > 060501 Bacteriology
05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and management
Divisions: Faculty of Mathematics and Sciences > Department of Biology
Depositing User: Ulfah Utami
Date Deposited: 01 Jul 2020 08:25

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