ELECTRO-BIOREMEDIATION AND EVALUATION OF BIOLOGICAL ACTIVITY IN SOILS CONTAMINATED BY HYDROCARBONS

Contenido principal del artículo

Robson Evaldo Gehlen Bohrer
Diosnel Antonio Rodriguez Lopez
Ênio Leandro Machado
Adriane Lawisch Rodriguez
Andrea Moura Bernardes
Fernando Almeida Santos
Paulo Eichler

Resumen

The growing demand of actions for soil remediation has resulted in the development of alternative technologies, especially for applications of techniques in situ, caused for the many forms of contamination of soil and underground water with petroleum hydrocarbons. The present work proposed an electro-bioremediation technique to evaluate the capacity degradation of the pollutants through microorganisms present in the polluted soil. The monitoring of the degradation of hydrocarbons was accompanied through chemical analyses of Total Petroleum Hydrocarbons (TPH), Benzene, Toluene, Ethylbenzene, and Xylene (BTEX), Polycyclic Aromatic Hydrocarbons (PAH). The microbiological activity was monitored through analyses of Colony-Forming Unit (CFU). The results showed that rates of degradation of the xylene, toluene and ethylbenzene had an order of 69%, 60% and 10%. The microbiologic activity presented an increase of 12.5 times for the Mould and Yeasts, and of 178.5 times for aerobic microorganisms. The isolation and biodegradation analysis pointed the existence of 26 different morphotypes, of these, 20 morphotypes (77%) possess capacity to degrade hydrocarbons that, 60% were found in the areas of influence of the cathode and 40% of the anode. The yeast-like material was isolated and identified, where the predominant genus was Penicillium (50%), Paecilomyces 16.6%, Trichoderma 16.6 % and Cladosporium 16.6%.

Detalles del artículo

Cómo citar
[1]
Gehlen Bohrer, R.E., Rodriguez Lopez, D.A., Machado, Ênio L., Lawisch Rodriguez, A., Moura Bernardes, A., Santos, F.A. y Eichler, P. 2020. ELECTRO-BIOREMEDIATION AND EVALUATION OF BIOLOGICAL ACTIVITY IN SOILS CONTAMINATED BY HYDROCARBONS. Revista AIDIS de ingeniería y ciencias ambientales: Investigación, desarrollo y práctica. 13, 2 (ago. 2020), 399–417. DOI:https://doi.org/10.22201/iingen.0718378xe.2020.13.2.67449.

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Biografía del autor/a

Robson Evaldo Gehlen Bohrer, Unisc - Universidade de Santa Cruz do Sul

Engenheiro Ambiental

Mestre em Tecnologia Ambiental e Doutor em Engenharia Civil - Recursos Hídricos e Saneamento Ambiental

Diosnel Antonio Rodriguez Lopez, Unisc - Universidade de Santa Cruz do Sul

Professor do Departamento de Engenharia Ambiental - UNISC

Ênio Leandro Machado, Unisc - Universidade de Santa Cruz do Sul

Professor do Departamento de Engenharia Ambiental - UNISC

Adriane Lawisch Rodriguez, Unisc - Universidade de Santa Cruz do Sul

Professora do Departamento de Engenharia Ambiental - UNISC

Andrea Moura Bernardes, Universidade Federal do Rio Grande do Sul - UFRGS

Professora do Programa de Pós Graduação em Engenharia de  Minas, Metalurgica e Materiais da UFRGS.

Fernando Almeida Santos, Universidade Estadual do Rio Grande do Sul - UERGS

Professor Adjunto da Universidade Estadual do Rio Grande do Sul;

Departamento de Engenharia 

Paulo Eichler, Universidade Estadual do Rio Grande do Sul - UERGS

Engenheiro de Bioprocessos - Universidade Estadual do Rio Grande do Sul - UERGS