Metal Removal from Contaminated Soils Trough Bioleaching with Oxidizing Bacteria and Rhamnolipid Biosurfactants

Mayri A. Diaz; Isora Urdaneta de Ranson; Blas Dorta Dorta; Ibrahim Banat; Maria L. Blazquez; Felisa Gonzalez; Jesús A. Muñoz; Antonio Ballester

doi:10.1080/15320383.2014.907239

Metal Removal from Contaminated Soils Trough Bioleaching with Oxidizing Bacteria and Rhamnolipid Biosurfactants

Mayri A. Diaz, Isora Urdaneta de Ranson, Blas Dorta Dorta, Ibrahim Banat, Maria L. Blazquez, Felisa Gonzalez, Jesús A. Muñoz, Antonio Ballester

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

61 Downloads (Pure)

Abstract

The use of surfactants as a method for solubilisation and removal of heavy metal contaminationfrom soil has been reported before. Biosurfactants produced by some microorganisms are able tomodify the surface of various metals and aggregate on interphases favouring metal separationprocess from contaminated environments. We evaluated the feasibility of enhancing the removalof metal ions from a mineral waste/contaminated soils using alternate cycles of treatment withrhamnolipid biosurfactants and bioleaching with amixed bacterial culture of Acidithiobacillusthiooxidans and Acidithiobacillus ferrooxidans. Bioleaching alone removed 50% Zn and 19%Fe. When rhamnolipids was used at low concentration (0.4 mg/mL) 11% Fe and 25% Zn wereremoved while at 1 mg/mL 19% Fe and 52% Zn removal were achieved. When using a cyclictreatment combining bioleaching and biosurfactants, metal removal reached up to 36% for Feand 63% to 70% for Zn.

Original language	English
Pages (from-to)	16-29
Journal	Soil and Sediment Contamination: An International Journal
Volume	24
Issue number	1
DOIs	https://doi.org/10.1080/15320383.2014.907239
Publication status	Published - Jan 2015

Access to Document

10.1080/15320383.2014.907239

Published Manuscript metal removalFinal published version, 603 KB

Cite this

Diaz, Mayri A. ; de Ranson, Isora Urdaneta ; Dorta, Blas Dorta ; Banat, Ibrahim ; Blazquez, Maria L. ; Gonzalez, Felisa ; Muñoz, Jesús A. ; Ballester, Antonio. / Metal Removal from Contaminated Soils Trough Bioleaching with Oxidizing Bacteria and Rhamnolipid Biosurfactants. In: Soil and Sediment Contamination: An International Journal. 2015 ; Vol. 24, No. 1. pp. 16-29.

@article{4fbcfd88eea04acc93b498fa566c2082,

title = "Metal Removal from Contaminated Soils Trough Bioleaching with Oxidizing Bacteria and Rhamnolipid Biosurfactants",

abstract = "The use of surfactants as a method for solubilisation and removal of heavy metal contaminationfrom soil has been reported before. Biosurfactants produced by some microorganisms are able tomodify the surface of various metals and aggregate on interphases favouring metal separationprocess from contaminated environments. We evaluated the feasibility of enhancing the removalof metal ions from a mineral waste/contaminated soils using alternate cycles of treatment withrhamnolipid biosurfactants and bioleaching with amixed bacterial culture of Acidithiobacillusthiooxidans and Acidithiobacillus ferrooxidans. Bioleaching alone removed 50% Zn and 19%Fe. When rhamnolipids was used at low concentration (0.4 mg/mL) 11% Fe and 25% Zn wereremoved while at 1 mg/mL 19% Fe and 52% Zn removal were achieved. When using a cyclictreatment combining bioleaching and biosurfactants, metal removal reached up to 36% for Feand 63% to 70% for Zn.",

author = "Diaz, {Mayri A.} and {de Ranson}, {Isora Urdaneta} and Dorta, {Blas Dorta} and Ibrahim Banat and Blazquez, {Maria L.} and Felisa Gonzalez and Mu{\~n}oz, {Jes{\'u}s A.} and Antonio Ballester",

year = "2015",

month = jan,

doi = "10.1080/15320383.2014.907239",

language = "English",

volume = "24",

pages = "16--29",

journal = "Soil and Sediment Contamination",

issn = "1532-0383",

publisher = "Taylor & Francis",

number = "1",

}

Metal Removal from Contaminated Soils Trough Bioleaching with Oxidizing Bacteria and Rhamnolipid Biosurfactants. / Diaz, Mayri A.; de Ranson, Isora Urdaneta; Dorta, Blas Dorta; Banat, Ibrahim; Blazquez, Maria L.; Gonzalez, Felisa; Muñoz, Jesús A.; Ballester, Antonio.

In: Soil and Sediment Contamination: An International Journal, Vol. 24, No. 1, 01.2015, p. 16-29.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Metal Removal from Contaminated Soils Trough Bioleaching with Oxidizing Bacteria and Rhamnolipid Biosurfactants

AU - Diaz, Mayri A.

AU - de Ranson, Isora Urdaneta

AU - Dorta, Blas Dorta

AU - Banat, Ibrahim

AU - Blazquez, Maria L.

AU - Gonzalez, Felisa

AU - Muñoz, Jesús A.

AU - Ballester, Antonio

PY - 2015/1

Y1 - 2015/1

N2 - The use of surfactants as a method for solubilisation and removal of heavy metal contaminationfrom soil has been reported before. Biosurfactants produced by some microorganisms are able tomodify the surface of various metals and aggregate on interphases favouring metal separationprocess from contaminated environments. We evaluated the feasibility of enhancing the removalof metal ions from a mineral waste/contaminated soils using alternate cycles of treatment withrhamnolipid biosurfactants and bioleaching with amixed bacterial culture of Acidithiobacillusthiooxidans and Acidithiobacillus ferrooxidans. Bioleaching alone removed 50% Zn and 19%Fe. When rhamnolipids was used at low concentration (0.4 mg/mL) 11% Fe and 25% Zn wereremoved while at 1 mg/mL 19% Fe and 52% Zn removal were achieved. When using a cyclictreatment combining bioleaching and biosurfactants, metal removal reached up to 36% for Feand 63% to 70% for Zn.

AB - The use of surfactants as a method for solubilisation and removal of heavy metal contaminationfrom soil has been reported before. Biosurfactants produced by some microorganisms are able tomodify the surface of various metals and aggregate on interphases favouring metal separationprocess from contaminated environments. We evaluated the feasibility of enhancing the removalof metal ions from a mineral waste/contaminated soils using alternate cycles of treatment withrhamnolipid biosurfactants and bioleaching with amixed bacterial culture of Acidithiobacillusthiooxidans and Acidithiobacillus ferrooxidans. Bioleaching alone removed 50% Zn and 19%Fe. When rhamnolipids was used at low concentration (0.4 mg/mL) 11% Fe and 25% Zn wereremoved while at 1 mg/mL 19% Fe and 52% Zn removal were achieved. When using a cyclictreatment combining bioleaching and biosurfactants, metal removal reached up to 36% for Feand 63% to 70% for Zn.

U2 - 10.1080/15320383.2014.907239

DO - 10.1080/15320383.2014.907239

M3 - Article

VL - 24

SP - 16

EP - 29

JO - Soil and Sediment Contamination

JF - Soil and Sediment Contamination

SN - 1532-0383

IS - 1

ER -

Metal Removal from Contaminated Soils Trough Bioleaching with Oxidizing Bacteria and Rhamnolipid Biosurfactants

Abstract

Access to Document

Fingerprint

Cite this