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Impact of biostimulation and bioaugmentation as bioremediation systems on diesel contaminated soils
Abraham, Juliana (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)
Gea Leiva, Teresa (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)
Vicent i Huguet, Teresa (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)

Additional title: Impact of biostimulation and bioaugmentation Oon diesel contaminated soils as bioremediation systems
Date: 2013
Abstract: This paper analyzes and compares the effects of bioremediation on total petroleum hydrocarbon (TPH) degradation using composting techniques as well as biostimulation and bioaugmentation approaches. Compost and sludge were added as organic amendments with the dual purpose of providing both nutrients and microorganisms to the contaminated soil. In addition, the effect of inoculation with white-rot fungus Trametes versicolor was assessed. Two different types of soils were considered: a poor soil with low organic matter content and an enriched organic soil. The use of compost and sludge for soil bioremediation through composting techniques was effective for TPH removal. The amount of organic matter present in the soil played an important role in TPH removal due to the adsorption phenomenon of the pollutants in the organic fraction of the solid material. When the contaminated soil was rich in organic matter, the use of sludge provided better results than compost (22% of degradation occurred in the first 15 days for sludge compared to 5% for compost). However, no differences between compost and sludge were observed in poor soil. Inoculation with the ligninolytic fungus T. versicolor enhanced the TPH removal process, thus increasing the degradation rate and reducing the process time. However, periodical reinoculation was required.
Rights: Tots els drets reservats
Language: Anglès.
Document: article ; recerca ; submittedVersion
Subject: Bioaugmentation ; Bioremediation ; Contaminated soil ; Total petroleum hydrocarbons ; Trametes versicolor
Published in: Environmental engineering and management journal, Vol. 15, no. 8 (June 2013) , p. 1743-1753, ISSN 1582-9596

DOI: 10.30638/eemj.2016.187


Preprint
21 p, 1.4 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Engineering > Composting Research Group (GICOM)
Articles > Research articles
Articles > Published articles

 Record created 2018-10-02, last modified 2019-09-19



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