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Persistence of pentolite (PETN and TNT) in soil microcosms and microbial enrichment cultures.
Arbeli, Ziv; Garcia-Bonilla, Erika; Pardo, Cindy; Hidalgo, Kelly; Velásquez, Trigal; Peña, Luis; C, Eliana Ramos; Avila-Arias, Helena; Molano-Gonzalez, Nicolás; Brandão, Pedro F B; Roldan, Fabio.
Afiliação
  • Arbeli Z; Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Cra. 7 N. 43-82, Bogotá, Colombia. zarbeli@javeriana.edu.co.
  • Garcia-Bonilla E; Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Cra. 7 N. 43-82, Bogotá, Colombia.
  • Pardo C; Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Cra. 7 N. 43-82, Bogotá, Colombia.
  • Hidalgo K; Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Cra. 7 N. 43-82, Bogotá, Colombia.
  • Velásquez T; Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Cra. 7 N. 43-82, Bogotá, Colombia.
  • Peña L; Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Cra. 7 N. 43-82, Bogotá, Colombia.
  • C ER; Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Cra. 7 N. 43-82, Bogotá, Colombia.
  • Avila-Arias H; Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Cra. 7 N. 43-82, Bogotá, Colombia.
  • Molano-Gonzalez N; Study Center of Autoimmune Diseases (CREA), School of Medicine and Health Sciences, Universidad del Rosario, Carrera 24 # 63C-69, Bogotá, Colombia.
  • Brandão PF; Laboratorio de Microbiología Ambiental y Aplicada, Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Cra. 30 N. 45-03, Bogotá, Colombia.
  • Roldan F; Unidad de Saneamiento y Biotecnología Ambiental (USBA), Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Cra. 7 N. 43-82, Bogotá, Colombia.
Environ Sci Pollut Res Int ; 23(9): 9144-55, 2016 May.
Article em En | MEDLINE | ID: mdl-26832872
Pentolite is a mixture (1:1) of 2,4,6-trinitrotoluene (TNT) and pentaerythritol tetranitrate (PETN), and little is known about its fate in the environment. This study was aimed to determine the dissipation of pentolite in soils under laboratory conditions. Microcosm experiments conducted with two soils demonstrated that dissipation rate of PETN was significantly slower than that of TNT. Interestingly, the dissipation of PETN was enhanced by the presence of TNT, while PETN did not enhanced the dissipation of TNT. Pentolite dissipation rate was significantly faster under biostimulation treatment (addition of carbon source) in soil from the artificial wetland, while no such stimulation was observed in soil from detonation field. In addition, the dissipation rate of TNT and PETN in soil from artificial wetland under biostimulation was significantly faster than the equivalent abiotic control, although it seems that non-biological processes might also be important for the dissipation of TNT and PETN. Transformation of PETN was also slower during establishment of enrichment culture using pentolite as the sole nitrogen source. In addition, transformation of these explosives was gradually reduced and practically stopped after the forth cultures transfer (80 days). DGGE analysis of bacterial communities from these cultures indicates that all consortia were dominated by bacteria from the order Burkholderiales and Rhodanobacter. In conclusion, our results suggest that PETN might be more persistent than TNT.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Tetranitrato de Pentaeritritol / Solo / Microbiologia do Solo / Poluentes do Solo / Trinitrotolueno Idioma: En Revista: Environ Sci Pollut Res Int Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Colômbia País de publicação: Alemanha
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Tetranitrato de Pentaeritritol / Solo / Microbiologia do Solo / Poluentes do Solo / Trinitrotolueno Idioma: En Revista: Environ Sci Pollut Res Int Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2016 Tipo de documento: Article País de afiliação: Colômbia País de publicação: Alemanha