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Influence of abiotic factors, natural attenuation, bioaugmentation and nutrient supplementation on bioremediation of petroleum crude contaminated agricultural soil
Abstract
Contamination of agricultural land(s) is a major problem worldwide which is associated with activities of petroleum industry. Due to these exploration activities remedial techniques for clean-up of contaminated agricultural soil(s) has become an alarming research topic. Hydrocarbon utilizing bacterial consortium (HUBC), isolated from petroleum crude (petroleum industry waste water and soil) contaminated sites, India has been used for soil microcosm study. The aim of present study was to compare potency of five different techniques to remediate petroleum hydrocarbons contaminated agricultural soil by employing soil microcosm study. To the best of our knowledge this is the first report for comparison of five different techniques (abiotic control, natural attenuation, biostimulation, bioaugmentation and simultaneous bioaugmentation & biostimulation) for bioremediation of agricultural soil using consortium of hydrocarbon utilizers by employing soil microcosms. Concurrent application of bioaugmentation (with HUBC) and biostimulation (with nutrient amendments) in the soil microcosm resulted in 93.67 ± 1.80% hydrocarbons degradation in 45 days of experiment and hydrocarbon utilizing bacterial count was recorded 4.11 ± 0.11 × 10 8 CFU/g. In the bioaugmented and biostimulated soil microcosm organic carbon was reduced from 3.49 ± 0.08% to 0.62 ± 0.11% with simultaneous decrease of other nutrients. The consortium could survive in artificially crude oil contaminated and nutrients amended…
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The supplementation of nutrients, known as biostimulation, continues to be crucial for enhancing bioremediation.
“Therefore, the supplementation of nutrients, known as biostimulation, continues to be crucial for enhancing bioremediation [357].”
From Harnessing bacterial consortia for effective bioremediation: targeted removal of heavy metals, hydrocarbons, and persistent pollutants (2025) · cites this paper as [357]
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Qattan, S. Y. A. (2025) · Environmental Sciences Europe · doi:10.1186/s12302-025-01103-y · Cited by 109
Metadata
- Authors
- Varjani, S., & Upasani, V. N.
- Corresponding author
- Varjani, Sunita
- Venue
- Journal of Environmental Management
- Publisher
- Elsevier BV
- Published
- 2019-09
- Volume
- 245
- Pages
- 358-366
- ISSN
- 0301-4797 (ISSN-L)
- OpenAlex
- W2947628200
- Cited by
- 166
- References
- 0
- Citations by year
- 2026: 19 · 2025: 23 · 2024: 28 · 2023: 16 · 2022: 35 · 2021: 24 · 2020: 16 · 2019: 5
- FWCI
- 5.87
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Environmental Management (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Central University of Gujarat
- Topics
- Physical Sciences › Environmental Science › Pollution › Microbial bioremediation and biosurfactants
- Physical Sciences › Chemistry › Organic Chemistry › Steroid Chemistry and Biochemistry
- Physical Sciences › Environmental Science › Environmental Chemistry › Environmental Chemistry and Analysis
- Keywords
- petroleum hydrocarbon bioremediation, crude oil contamination, agricultural soils, bioaugmentation, biostimulation, nutrient supplementation, natural attenuation, abiotic controls, soil microcosms, hydrocarbon degradation, agricultural land restoration
- MeSH terms
- Nutrients, Biodegradation, Environmental, Hydrocarbons, India, Petroleum, Soil, Soil Microbiology, Soil Pollutants, Dietary Supplements
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