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Enhancement of Oil Field-produced Wastewater Remediation by Bacterially-augmented Floating Treatment Wetlands by Khadeeja Rehman; Asma Imran; Imran Amin; Muhammad Afzal is a Environmental Science article available to read on EtoBox.

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Plants and bacteria individually as well as in synergism with each other hold a great potential to degrade a wide range of environmental pollutants. Floating treatment wetlands (FTWs) is an efficient and low-cost technology that uses the synergistic interaction between plant roots and microbes for in situ remediation of wastewater. The present study aims to assess the feasibility of FTW-based remediation of oil field-produced wastewater using an interaction between two plant species, Typha domingensis and Leptochloa fusca, in partnership with a consortium of crude oil-degrading bacterial species, Bacillus subtilis LORI66, Klebsiella sp. LCRI87, Acinetobacter Junii TYRH47, and Acinetobacter sp. BRSI56. All the treatments reduced contaminant levels, but T. domingensis, in combination with bacterial inoculation, exhibited the highest reduction in hydrocarbon (95%), COD (90%), and BOD content (93%) as compared to L. fusca. This combination maximally promoted increases in fresh biomass (31%), dry biomass (52%), and length (25%) of plants as well. This effect was further signified by the persistence of bacteria (40%) and considerable abundance (27%) and expression (28.5%) of the alkB gen

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Author

Khadeeja Rehman; Asma Imran; Imran Amin; Muhammad Afzal

Publisher

Elsevier BV

Published

2018

Language

EN

Field

Environmental Science (Physical Sciences)