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Characterization of a Microbial Consortium for the Bioremoval of Polycyclic Aromatic Hydrocarbons (PAHs) in Water

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  • Esmeralda G. Blanco-Enríquez

    (Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Campus Universitario #2, Circuito Universitario, Chihuahua, Chihuahua C.P. 31125, México)

  • Francisco Javier Zavala-Díaz de la Serna

    (Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Campus Universitario #2, Circuito Universitario, Chihuahua, Chihuahua C.P. 31125, México)

  • María Del Rosario Peralta-Pérez

    (Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Campus Universitario #2, Circuito Universitario, Chihuahua, Chihuahua C.P. 31125, México)

  • Lourdes Ballinas-Casarrubias

    (Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Campus Universitario #2, Circuito Universitario, Chihuahua, Chihuahua C.P. 31125, México)

  • Iván Salmerón

    (Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Campus Universitario #2, Circuito Universitario, Chihuahua, Chihuahua C.P. 31125, México)

  • Héctor Rubio-Arias

    (Facultad de Zootecnia y Ecología, Universidad Autónoma de Chihuahua, Periférico. R. Almada, Km.1. Chihuahua, Chihuahua C.P. 31453, México)

  • Beatriz A. Rocha-Gutiérrez

    (Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Campus Universitario #2, Circuito Universitario, Chihuahua, Chihuahua C.P. 31125, México)

Abstract

Pollution of freshwater ecosystems from polycyclic aromatic hydrocarbons (PAHs) is a global concern. The US Environmental Protection Agency (EPA) has included the PAHs pyrene, phenanthrene, and naphthalene among the 16 priority compounds of special concern for their toxicological effects. The aim of this study was to adapt and characterize a microbial consortium from ore waste with the potential to remove these three PAHs from water. This microbial consortium was exposed to the target PAHs at levels of 5, 10, 20, 50, and 100 mg L −1 for 14 days. PAH bioremoval was measured using the analytical technique of solid phase microextraction, followed by gas chromatography mass spectrometry (SPME-GC/MS). The results revealed that up to 90% of the target PAHs can be removed from water after 14 days at a concentration level of 100 mg L −1 . The predominant group of microorganisms identified at the phylum taxonomic level were the Proteobacteria, while the Actinobacteria were the predominant subgroup. The removal of phenanthrene, naphthalene, and pyrene predominantly occurred in specimens of genera Stenotrophomonas , Williamsia , and Chitinophagaceae, respectively. This study demonstrates that the use of specific microorganisms is an alternative method of reducing PAH levels in water.

Suggested Citation

  • Esmeralda G. Blanco-Enríquez & Francisco Javier Zavala-Díaz de la Serna & María Del Rosario Peralta-Pérez & Lourdes Ballinas-Casarrubias & Iván Salmerón & Héctor Rubio-Arias & Beatriz A. Rocha-Gutiérr, 2018. "Characterization of a Microbial Consortium for the Bioremoval of Polycyclic Aromatic Hydrocarbons (PAHs) in Water," IJERPH, MDPI, vol. 15(5), pages 1-14, May.
    • Handle: RePEc:gam:jijerp:v:15:y:2018:i:5:p:975-:d:146076
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    References listed on IDEAS

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    1. Caiyun Sun & Jiquan Zhang & Qiyun Ma & Yanan Chen, 2015. "Human Health and Ecological Risk Assessment of 16 Polycyclic Aromatic Hydrocarbons in Drinking Source Water from a Large Mixed-Use Reservoir," IJERPH, MDPI, vol. 12(11), pages 1-14, October.
    2. Zhineng Liu & Qing Li & Qihang Wu & Dave T. F. Kuo & Shejun Chen & Xiaodong Hu & Mingjun Deng & Haozhi Zhang & Min Luo, 2017. "Removal Efficiency and Risk Assessment of Polycyclic Aromatic Hydrocarbons in a Typical Municipal Wastewater Treatment Facility in Guangzhou, China," IJERPH, MDPI, vol. 14(8), pages 1-13, August.
    3. Yi-Bin Qi & Chen-Yu Wang & Cheng-Yuan Lv & Zeng-Min Lun & Cheng-Gang Zheng, 2017. "Removal Capacities of Polycyclic Aromatic Hydrocarbons (PAHs) by a Newly Isolated Strain from Oilfield Produced Water," IJERPH, MDPI, vol. 14(2), pages 1-12, February.
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