Bioremediation of Soils Contaminated with Pharmaceuticals, Pesticides, Petroleum and Other Organic Compounds

A special issue of Toxics (ISSN 2305-6304). This special issue belongs to the section "Toxicity Reduction and Environmental Remediation".

Deadline for manuscript submissions: closed (31 August 2022) | Viewed by 18787

Special Issue Editor


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Guest Editor
Department of Microbiology and Virology, School of Pharmacy with the Division of Laboratory Medicine, Medical University of Silesia, Sosnowiec, Poland
Interests: environmental microbiology and biotechnology; biodegradation of organic pollutants; bioremediation of contaminated soils
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Special Issue Information

Dear Colleagues,

Although pharmaceuticals (especially antibiotics and non-steroidal anti-inflammatory drugs), pesticides, petroleum, and other organic compounds have human benefits, their widespread and continuous use is a major problem as they pollute soils and affect non-target organisms. Since the abovementioned compounds may not degrade immediately after introduction into soil and because their large residues are detected in this environment, there is an urgent need to remediate polluted soils. Various remediation technologies have been developed for this purpose; however, bioremediation, which involves bioaugmentation and/or biostimulation and is a cost-effective and eco-friendly approach, has emerged as the most advantageous method for cleaning up contaminated soils.

In this context, this Special Issue of Toxics welcomes researchers all over the world to contribute with original articles and reviews addressing the latest knowledge about bioremediation of soil contaminated with organic pollutants. Research areas may include (but are not limited to) the following:

  • Levels of soil contamination with pharmaceuticals, pesticides, petroleum, and other organic compounds;
  • Impact of organic contaminants on soil microorganisms and processes;
  • Degradation potential of indigenous soil microorganisms in relation to organic pollutants;
  • Existing and new strategies for bioremediation of contaminated soils;
  • Screening of soil microorganisms degrading organic contaminants;
  • Bioremediation of contaminated soils by inoculating of specific microorganisms;
  • Fate and activity of microorganisms involved in the degradation of contaminants;
  • Ecological behavior of degrading microorganisms;
  • Specific markers, methods, and molecular tools for monitoring the effectiveness of soil bioremediation, as well as the survival dynamics and the interaction of degrading microorganisms with indigenous microorganisms.

Dr. Mariusz Cycoń
Guest Editor

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Keywords

  • organic compound
  • soil contamination
  • bioremediation technologies
  • screening of organic pollutant-degrading microorganisms
  • microbial activity
  • bioaugmentation
  • behavior of inoculated microorganisms
  • factors affecting bioremediation

Published Papers (2 papers)

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Research

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14 pages, 3447 KiB  
Article
Biodegradation of Dibutyl Phthalate by the New Strain Acinetobacter baumannii DP-2
by Cheng Li, Chunjing Liu, Rongzhen Li, Yue Liu, Jianzhi Xie and Bowen Li
Toxics 2022, 10(9), 532; https://doi.org/10.3390/toxics10090532 - 09 Sep 2022
Cited by 6 | Viewed by 1778
Abstract
Optimizing the culture conditions of DBP degradation by bacteria and investigating its biodegradation pathways have a great importance to develop effective PAEs pollution control strategies. In this study, we investigated the cultivation condition optimization, degradation kinetics, and degradation pathways of a newly isolated [...] Read more.
Optimizing the culture conditions of DBP degradation by bacteria and investigating its biodegradation pathways have a great importance to develop effective PAEs pollution control strategies. In this study, we investigated the cultivation condition optimization, degradation kinetics, and degradation pathways of a newly isolated dibutyl phthalate (DBP) degradation strain, which was isolated from activated sludge and identified as Acinetobacter baumannii DP-2 via morphological observation, biochemical identification, and 16S rDNA sequence analysis. The degradation conditions were optimized based on the results of single-factor experiments and response surface optimization experiments. The DBP degradation rate of Acinetobacter baumannii DP-2 reached up to 85.86% when the inoculation amount was 17.14%, the DBP concentration was 9.81 mg·L−1 and the NaCl concentration was 5 g·L−1. The GC-MS analysis results indicated that the intermediate metabolites of Acinetobacter baumannii DP-2 mainly consisted of DMP, MBP, PA, and benzoic acid derivatives, which confirmed the degradation pathway from DBP to PA under aerobic pathway and then to BA under anaerobic pathway. In summary, Acinetobacter baumannii DP-2 shows great potential for the degradation of DBP in contaminated soils. Full article
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Review

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24 pages, 1283 KiB  
Review
Recent Strategies for Bioremediation of Emerging Pollutants: A Review for a Green and Sustainable Environment
by Saroj Bala, Diksha Garg, Banjagere Veerabhadrappa Thirumalesh, Minaxi Sharma, Kandi Sridhar, Baskaran Stephen Inbaraj and Manikant Tripathi
Toxics 2022, 10(8), 484; https://doi.org/10.3390/toxics10080484 - 19 Aug 2022
Cited by 106 | Viewed by 16395
Abstract
Environmental pollution brought on by xenobiotics and other related recalcitrant compounds have recently been identified as a major risk to both human health and the natural environment. Due to their toxicity and non-biodegradability, a wide range of pollutants, such as heavy metals, polychlorinated [...] Read more.
Environmental pollution brought on by xenobiotics and other related recalcitrant compounds have recently been identified as a major risk to both human health and the natural environment. Due to their toxicity and non-biodegradability, a wide range of pollutants, such as heavy metals, polychlorinated biphenyls, plastics, and various agrochemicals are present in the environment. Bioremediation is an effective cleaning technique for removing toxic waste from polluted environments that is gaining popularity. Various microorganisms, including aerobes and anaerobes, are used in bioremediation to treat contaminated sites. Microorganisms play a major role in bioremediation, given that it is a process in which hazardous wastes and pollutants are eliminated, degraded, detoxified, and immobilized. Pollutants are degraded and converted to less toxic forms, which is a primary goal of bioremediation. Ex situ or in situ bioremediation can be used, depending on a variety of factors, such as cost, pollutant types, and concentration. As a result, a suitable bioremediation method has been chosen. This review focuses on the most recent developments in bioremediation techniques, how microorganisms break down different pollutants, and what the future holds for bioremediation in order to reduce the amount of pollution in the world. Full article
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