Removal of polycyclic aromatic hydrocarbons in soil spiked with model mixtures of petroleum hydrocarbons and heterocycles using biosurfactants from Rhodococcus ruber IEGM 231

Irina Ivshina, Ludmila Kostina, Anastasiya Krivoruchko, Maria Kuyukina, Tatyana Peshkur, Peter Anderson, Colin Cunningham

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Removal of polycyclic aromatic hydrocarbons (PAHs) in soil using biosurfactants (BS) produced by Rhodococcus ruber IEGM 231 was studied in soil columns spiked with model mixtures of major petroleum constituents. A crystalline mixture of single PAHs (0.63 g/kg), a crystalline mixture of PAHs (0.63 g/kg) and polycyclic aromatic sulfur heterocycles (PASHs), and an artificially synthesized non-aqueous phase liquid (NAPL) containing PAHs (3.00 g/kg) dissolved in alkanes C10-C19 were used for spiking. Percentage of PAH removal with BS varied from 16 to 69%. Washing activities of BS were 2.5 times greater than those of synthetic surfactant Tween 60 in NAPL-spiked soil and similar to Tween 60 in crystalline-spiked soil. At the same time, amounts of removed PAHs were equal and consisted of 0.3-0.5 g/kg dry soil regardless the chemical pattern of a model mixture of petroleum hydrocarbons and heterocycles used for spiking. UV spectra for soil before and after BS treatment were obtained and their applicability for differentiated analysis of PAH and PASH concentration changes in remediated soil was shown. The ratios A254nm/A288nm revealed that BS increased biotreatability of PAH-contaminated soils.

LanguageEnglish
Pages8-17
Number of pages10
JournalJournal of Hazardous Materials
Volume312
Early online date6 Mar 2016
DOIs
Publication statusPublished - 15 Jul 2016

Fingerprint

Rhodococcus
Polycyclic Aromatic Hydrocarbons
Petroleum
petroleum hydrocarbon
Polycyclic aromatic hydrocarbons
Hydrocarbons
PAH
Soil
Crude oil
Soils
soil
Polysorbates
nonaqueous phase liquid
Crystalline materials
Sulfur
Alkanes
removal
Liquids
soil column
Washing

Keywords

  • co-contaminants
  • polycyclic aromatic hydrocarbons
  • Rhodococcus biosurfactants
  • soil contamination
  • UV spectrophotometry

Cite this

Ivshina, Irina ; Kostina, Ludmila ; Krivoruchko, Anastasiya ; Kuyukina, Maria ; Peshkur, Tatyana ; Anderson, Peter ; Cunningham, Colin. / Removal of polycyclic aromatic hydrocarbons in soil spiked with model mixtures of petroleum hydrocarbons and heterocycles using biosurfactants from Rhodococcus ruber IEGM 231. In: Journal of Hazardous Materials. 2016 ; Vol. 312. pp. 8-17.
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Removal of polycyclic aromatic hydrocarbons in soil spiked with model mixtures of petroleum hydrocarbons and heterocycles using biosurfactants from Rhodococcus ruber IEGM 231. / Ivshina, Irina; Kostina, Ludmila; Krivoruchko, Anastasiya; Kuyukina, Maria; Peshkur, Tatyana; Anderson, Peter; Cunningham, Colin.

In: Journal of Hazardous Materials, Vol. 312, 15.07.2016, p. 8-17.

Research output: Contribution to journalArticle

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