Bioremediation of Contaminated Soils

A special issue of Environments (ISSN 2076-3298).

Deadline for manuscript submissions: closed (30 April 2019) | Viewed by 8015

Special Issue Editors


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Guest Editor
Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
Interests: bioremediation; phytoremediation; mycoremediation; applied microbiology; microbial ecology; soil microbial communities; microbial biodiversity in environmental samples; microbial and enzymatic degradation of pollutants, e.g., persistent organic pollutants (POPs), total petroleum hydrocarbons (TPH), polycyclic armoatic hydrocarbons (PAHs), emerging micropollutants, such as endocrine disrupting compounds (EDCs) and pharmaceuticals, and personal care products (PPCPs); wastewater treatment processes (WWTPs); bioactive compounds from plants and mushrooms; antimicrobial activity testing

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Guest Editor
LEITAT Technological Center, Terrassa, Spain
Interests: new bacterial isolates for diverse types of applications: Agriculture, remediation, and industry; omics to assess the effectiveness of bacterial strains in biotechnological processes

Special Issue Information

Dear Colleagues,

Soil is a nonrenewable finite resource and its loss or degradation is not recoverable in an easy and timely manner. Chemical contamination of soils is an issue of great concern worldwide, as it causes adverse effects to human health and wildlife ecosystems, as well as a consistent loss of land productivity. Soil contaminants include natural (e.g., petroleum-derived products, metals) and man-made chemicals (pesticides, explosives, solvents, halogenated compounds, pharmaceuticals, etc.) reaching soil by either accidental or deliberate spills, or simply through wet and dry deposition. Among the possible strategies to clean up polluted soils, bioremediation takes advantage of the catabolic versatility of (micro)organisms to either degrade contaminants or to transform them into nontoxic products, thus preserving soil functionality.

Bioremediation has been studied and steadily applied in the past decades by academic researchers and practitioners. However, more efforts are needed to understand the complex network of interactions existing between biological entities, for example, (micro)organisms, contaminants present in a polluted soil, and the soil matrix itself. The present Special Issue aims to collect original articles focusing on the variables involved in bioremediation processes: (1) Quantitative and qualitative determination of contaminants, considering also their aging and bioavailability; (2) environmental parameters and soil biodiversity/functionality; (3) effect of bioremediation intervention (e.g., biostimulation, bioaugmentation) on resident microbial communities; (4) ecotoxicology assessment.

Dr. Stefano Covino
Dr. Salvador Lladó
Guest Editors

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Keywords

  • Bioremediation
  • Phytoremediation
  • Soil contamination
  • Petroleum hydrocarbons
  • Persistent organic pollutants (POPs)
  • Pharmaceuticals and personal care products (PPCPs)
  • Microbial communities
  • Cultivation-dependent approach
  • Cultivation-independent approach
  • Contaminant bioavailability
  • Ecotoxicology assessment

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Published Papers (1 paper)

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Research

12 pages, 2424 KiB  
Article
Bioremediation of Polluted Soil Sites with Crude Oil Hydrocarbons Using Carrot Peel Waste
by Latifa Hamoudi-Belarbi, Safia Hamoudi, Khaled Belkacemi, L’Hadi Nouri, Leila Bendifallah and Mohamed Khodja
Environments 2018, 5(11), 124; https://doi.org/10.3390/environments5110124 - 17 Nov 2018
Cited by 23 | Viewed by 7526
Abstract
The biostimulation potentials of carrot peel waste and carob kibbles for bioremediation of crude petroleum-oil polluted soil were investigated. Temperature, pH, moisture, total petroleum hydrocarbon (TPH), and changes in microbial counts during 45 days were monitored when 4 mL of carrot peel waste [...] Read more.
The biostimulation potentials of carrot peel waste and carob kibbles for bioremediation of crude petroleum-oil polluted soil were investigated. Temperature, pH, moisture, total petroleum hydrocarbon (TPH), and changes in microbial counts during 45 days were monitored when 4 mL of carrot peel waste or carob kibbles media were added to 200 g of crude oil polluted soil samples. Gas chromatography-flame ionization detection (GC-FID) was used to compare hydrocarbon present in the crude oil polluted soil and in pure fuel, composition of crude oil polluted soil was analyzed by X-ray diffraction (XRD), and the TPH was measured by distillation using distiller mud. The results showed that, at the end of experiments, the concentration of TPH decreased in crude oil polluted soil containing carrot peel waste with a percentage of 27 ± 1.90% followed by crude oil polluted soil containing carob kibbles (34 ± 1.80%) and in the unamended control soil (36 ± 1.27%), respectively. The log [Colony Forming Unit (CFU)/g] of total heterotrophic bacteria in the crude oil polluted soil increased from 10.46 ± 0.91 to 13.26 ± 0.84 for carrot peel waste, from 11.01 ± 0.56 to 11.99 ± 0.77 for carob kibbles and from 8.18 ± 0.39 to 8.84 ± 0.84 for control, respectively. Such results demonstrated that carrot peel could be used to enhance activities of the microbial hydrocarbon-degrading bacteria during bioremediation of crude petroleum-oil polluted soil. Full article
(This article belongs to the Special Issue Bioremediation of Contaminated Soils)
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