Phytoremediation for co-contaminated soils of benzo[a]pyrene (B[a]P) and heavy metals using ornamental plant Tagetes patula

Sun, Yuebing; Zhou, Qixing; Xu, Yan; Wang, Lin; Liang, Xuefeng

doi:10.1016/j.jhazmat.2010.12.116

Cited by 185 publications

(52 citation statements)

References 49 publications

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“…The release of heavy metals into the earth is one of the major environmental pollution and has become an attention of great concern in the world due to the extensive release of metal(loid)s in soil and water [1]. Elimination of heavy metals from the contaminated soil is particularly challenging as these metals are non-biodegradable.…”

Section: Introductionmentioning

confidence: 99%

Isolation and characterization of a biosurfactant-producing heavy metal resistant Rahnella sp. RM isolated from chromium-contaminated soil

Govarthanan

Mythili²,

Selvankumar³

et al. 2017

Biotechnol Bioproc E

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Objective of the study was to isolate heavy metal resistant bacteria from chromiumcontaminated subsurface soil and investigate biosurfactant production and heavy metal bioremediation. Based on 16S rRNA gene sequence and phylogenetic analysis, the isolate was identified as Rahnella sp. RM. The biosurfactant production by heavy metal resistant Rahnella sp. RM was optimized using Box-Behnken design (BBD). The maximum emulsification activity was obtained 66 % at 6 % soybean meal in pH 7.0 and 33.5 °C. The biosurfactant was characterized using Field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FT-IR) and matrix assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF). The highest metal removal rates using the biosurfactant were found 74.3, 72.5, and 70.1 %, respectively, at the 100 mg/L amended flasks at 48 h. This study indicated the biosurfactant from heavy metal resistant Rahnella sp. RM could be used as a potential tool to remediate the metals in contaminated environments.

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Section: Introductionmentioning

confidence: 99%

Isolation and characterization of a biosurfactant-producing heavy metal resistant Rahnella sp. RM isolated from chromium-contaminated soil

Govarthanan

Mythili²,

Selvankumar³

et al. 2017

Biotechnol Bioproc E

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“…Soil and water contaminated with organic pollutants usually contain other pollutants as well, such as heavy metals, because they were discharged from the same sources, including vehicle emissions, industrial processes, power and heat generation and waste incineration. The presence of co-contamination in waters and soils represents a threat to biota (Sun et al, 2011). Despite many studies on phytoremediation of sites contaminated with either heavy metals or organics, little information is available on the effectiveness of phytoremediation of co-occurring metal and organic pollutants (Lin et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Phytoremediation potential of Juncus subsecundus in soils contaminated with cadmium and polynuclear aromatic hydrocarbons (PAHs)

et al. 2012

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“…Soils always contain several contaminants that vary in concentration and composition ; among all, organic chemicals such as PAHs and heavy metals are recognized as two major typical contaminations that cause water and soil pollution (Sun et al 2011). PAHs are by-products of the imperfect combustion or pyrolysis of organic materials, and they are priority organic contaminants in the environment.…”

Section: Introductionmentioning

confidence: 99%

Effects of key components of S. triqueter root exudates on fractions and bioavailability of pyrene–lead co-contaminated soils

Hou

Liu

Zhang

et al. 2016

Int. J. Environ. Sci. Technol.

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The key components of S. triqueter root exudates involved 4-oxo-pentanoic acid, succinic acid, glutaric acid, phthalate acid, citric acid, vanillic acid, myristic acid, pentadecanoic acid, decanoic acid, 14-methyl-pentadecanoic acid, hexadecanoic acid, octadecanoic acid and oleic acid, and the content of the water-soluble organic acids (citric acid, succinic acid and glutaric acid) significantly increased in pyrene and lead co-contaminated rhizosphere soil. These three water-soluble organic acids including citric acid, succinic acid and glutaric acid were detected as the specific root exudates of S. triqueter under stress of pollutants for pyrene and lead, so they were chosen as the research objects, and they were added into the bioremediation systems of pyrene and lead co-contaminated wetland soils. Compared with the control, the treatments added the three organic acids always improved the quantity of the bioavailable fraction of pyrene and lead in wetland soils and greatly influenced other chemical states of pyrene and lead fractions in the test concentration range. Under the 50 g kg -1 of organic acids concentration, the amount of the bioavailable fraction of pyrene and lead increased 41.0 and 872.7 % by citric acid, respectively. The enhancement of bioavailability of pyrene and lead in the wetland soil by adding organic acids generally decreased in the following order: citric acid [ succinic acid [ glutaric acid. Enhancing effects of organic acids on the bioavailability improvement of pyrene and lead is remarkable.

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Phytoremediation for co-contaminated soils of benzo[a]pyrene (B[a]P) and heavy metals using ornamental plant Tagetes patula

Cited by 185 publications

References 49 publications

Isolation and characterization of a biosurfactant-producing heavy metal resistant Rahnella sp. RM isolated from chromium-contaminated soil

Isolation and characterization of a biosurfactant-producing heavy metal resistant Rahnella sp. RM isolated from chromium-contaminated soil

Phytoremediation potential of Juncus subsecundus in soils contaminated with cadmium and polynuclear aromatic hydrocarbons (PAHs)

Effects of key components of S. triqueter root exudates on fractions and bioavailability of pyrene–lead co-contaminated soils

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