Biodegradation of Toluene Under Seasonal and Diurnal Fluctuations of Soil-Water Temperature.

Handle URI:
http://hdl.handle.net/10754/596837
Title:
Biodegradation of Toluene Under Seasonal and Diurnal Fluctuations of Soil-Water Temperature.
Authors:
Yadav, Brijesh K; Shrestha, Shristi R; Hassanizadeh, S Majid
Abstract:
An increasing interest in bioremediation of hydrocarbon polluted sites raises the question of the influence of seasonal and diurnal changes on soil-water temperature on biodegradation of BTEX, a widespread group of (sub)-surface contaminants. Therefore, we investigated the impact of a wide range of varying soil-water temperature on biodegradation of toluene under aerobic conditions. To see the seasonal impact of temperature, three sets of batch experiments were conducted at three different constant temperatures: 10°C, 21°C, and 30°C. These conditions were considered to represent (1) winter, (2) spring and/or autumn, and (3) summer seasons, respectively, at many polluted sites. Three additional sets of batch experiments were performed under fluctuating soil-water temperature cases (21<>10°C, 30<>21°C, and 10<>30°C) to mimic the day-night temperature patterns expected during the year. The batches were put at two different temperatures alternatively to represent the day (high-temperature) and night (low-temperature) times. The results of constant- and fluctuating-temperature experiments show that toluene degradation is strongly dependent on soil-water temperature level. An almost two-fold increase in toluene degradation time was observed for every 10°C decrease in temperature for constant-temperature cases. Under fluctuating-temperature conditions, toluene degraders were able to overcome the temperature stress and continued thriving during all considered weather scenarios. However, a slightly longer time was taken compared to the corresponding time at daily mean temperature conditions. The findings of this study are directly useful for bioremediation of hydrocarbon-polluted sites having significant diurnal and seasonal variations of soil-water temperature.
Citation:
Yadav BK, Shrestha SR, Hassanizadeh SM (2012) Biodegradation of Toluene Under Seasonal and Diurnal Fluctuations of Soil-Water Temperature. Water Air Soil Pollut 223: 3579–3588. Available: http://dx.doi.org/10.1007/s11270-011-1052-x.
Publisher:
Springer Nature
Journal:
Water, Air, & Soil Pollution
Issue Date:
12-May-2012
DOI:
10.1007/s11270-011-1052-x
PubMed ID:
22865939
PubMed Central ID:
PMC3409364
Type:
Article
ISSN:
0049-6979; 1573-2932
Sponsors:
We would like to acknowledge the King Abdullah University of Science and Technology (KAUST) for extending the financial support to this research as part of the SOWACOR Project. The authors are also thankful to the Department of Science and Technology (DST), India, for extending the financial aid in the form of the Ramanujan research award.
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Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorYadav, Brijesh Ken
dc.contributor.authorShrestha, Shristi Ren
dc.contributor.authorHassanizadeh, S Majiden
dc.date.accessioned2016-02-21T09:35:06Zen
dc.date.available2016-02-21T09:35:06Zen
dc.date.issued2012-05-12en
dc.identifier.citationYadav BK, Shrestha SR, Hassanizadeh SM (2012) Biodegradation of Toluene Under Seasonal and Diurnal Fluctuations of Soil-Water Temperature. Water Air Soil Pollut 223: 3579–3588. Available: http://dx.doi.org/10.1007/s11270-011-1052-x.en
dc.identifier.issn0049-6979en
dc.identifier.issn1573-2932en
dc.identifier.pmid22865939en
dc.identifier.doi10.1007/s11270-011-1052-xen
dc.identifier.urihttp://hdl.handle.net/10754/596837en
dc.description.abstractAn increasing interest in bioremediation of hydrocarbon polluted sites raises the question of the influence of seasonal and diurnal changes on soil-water temperature on biodegradation of BTEX, a widespread group of (sub)-surface contaminants. Therefore, we investigated the impact of a wide range of varying soil-water temperature on biodegradation of toluene under aerobic conditions. To see the seasonal impact of temperature, three sets of batch experiments were conducted at three different constant temperatures: 10°C, 21°C, and 30°C. These conditions were considered to represent (1) winter, (2) spring and/or autumn, and (3) summer seasons, respectively, at many polluted sites. Three additional sets of batch experiments were performed under fluctuating soil-water temperature cases (21<>10°C, 30<>21°C, and 10<>30°C) to mimic the day-night temperature patterns expected during the year. The batches were put at two different temperatures alternatively to represent the day (high-temperature) and night (low-temperature) times. The results of constant- and fluctuating-temperature experiments show that toluene degradation is strongly dependent on soil-water temperature level. An almost two-fold increase in toluene degradation time was observed for every 10°C decrease in temperature for constant-temperature cases. Under fluctuating-temperature conditions, toluene degraders were able to overcome the temperature stress and continued thriving during all considered weather scenarios. However, a slightly longer time was taken compared to the corresponding time at daily mean temperature conditions. The findings of this study are directly useful for bioremediation of hydrocarbon-polluted sites having significant diurnal and seasonal variations of soil-water temperature.en
dc.description.sponsorshipWe would like to acknowledge the King Abdullah University of Science and Technology (KAUST) for extending the financial support to this research as part of the SOWACOR Project. The authors are also thankful to the Department of Science and Technology (DST), India, for extending the financial aid in the form of the Ramanujan research award.en
dc.publisherSpringer Natureen
dc.rightsThis article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.en
dc.titleBiodegradation of Toluene Under Seasonal and Diurnal Fluctuations of Soil-Water Temperature.en
dc.typeArticleen
dc.identifier.journalWater, Air, & Soil Pollutionen
dc.identifier.pmcidPMC3409364en
dc.contributor.institutionUtrecht University, Utrecht, Netherlandsen
dc.contributor.institutionIndian Institute of Technology Delhi, New Delhi, Indiaen
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