Biotechnology for soil decontamination: opportunity, challenges, and prospects for pesticide biodegradation

Sun, Yuqing; Kumar, Manish; Wang, Lei; Gupta, Juhi; Tsang, Daniel C.W.

doi:10.1016/b978-0-12-819481-2.00013-1

Cited by 33 publications

(6 citation statements)

References 90 publications

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“…Bioaugmentation is a green technology used successfully for bioremediation of soil and water from several contaminants (e.g., petroleum hydrocarbons and pesticides) ( Gentry et al, 2004 ; Abatenh et al, 2017 ; Arora, 2018 ). It consists in adding exogenous microbial populations or autochthonous ones (as in this work) with the catabolic potential to remove specific pollutants, such as pesticides ( Plangklang and Reungsang, 2011 ; Sun et al, 2020 ). One advantage of bioaugmentation is that the degradation process starts as soon as specific microbial degraders are introduced ( Wu et al, 2019 ).…”

Section: Discussionmentioning

confidence: 99%

Bioaugmentation With a Consortium of Bacterial Sodium Lauryl Ether Sulfate-Degraders for Remediation of Contaminated Soils

et al. 2021

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The anionic surfactant sodium lauryl ether sulfate (SLES) is the main component of most commercial foaming agents (FAs) used in the excavation of highway and railway tunnels with Earth pressure balance-tunnel boring machines (EPB-TBMs). Several hundreds of millions of tons of spoil material, consisting of soil mixed with FAs, are produced worldwide, raising the issue of their handling and safe disposal. Reducing waste production and reusing by-products are the primary objectives of the “circular economy,” and in this context, the biodegradation of SLES becomes a key question in reclaiming excavated soils, especially at construction sites where SLES degradation on the spot is not possible because of lack of space for temporary spoil material storage. The aim of the present work was to apply a bacterial consortium (BC) of SLES degraders to spoil material excavated with an EPB-TBM and coming from a real construction site. For this purpose, the BC capability to accelerate SLES degradation was tested. Preliminary BC growth, degradation tests, and ecotoxicological evaluations were performed on a selected FA. Subsequently, a bioaugmentation experiment was conducted; and the microbial abundance, viability, and SLES concentrations in spoil material were evaluated over the experimental time (0.5, 3, 6, 24, 48, and 144 h). Moreover, the corresponding aqueous elutriates were extracted from all the soil samples and analyzed for SLES concentration and ecotoxicological evaluations with the bacterium Aliivibrio fischeri. The preliminary experiments showed the BC capability to grow under 14 different concentrations of the FA. The maximum BC growth rates and degradation efficiency (100%) were achieved with initial SLES concentrations of 125, 250, and 500 mg/L. The subsequent bioaugmentation of the spoil material with BC significantly (sixfold) improved the degradation time of SLES (DT50 1 day) compared with natural attenuation (DT50 6 days). In line with this result, neither SLES residues nor toxicity was recorded in the soil extracts showing the spoil material as a by-product promptly usable. The bioaugmentation with BC can be a very useful for cleaning spoil material produced in underground construction where its temporary storage (for SLES natural biodegradation) is not possible.

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Section: Discussionmentioning

confidence: 99%

Bioaugmentation With a Consortium of Bacterial Sodium Lauryl Ether Sulfate-Degraders for Remediation of Contaminated Soils

et al. 2021

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“…Due to the long-term accumulation of pesticides in soils and their difficult degradation characteristics, the production and use of pesticides such as fungicides, insecticides, and herbicides have caused serious site pollution problems. 105 Since it is difficult to remove the pesticides via traditional physicochemical remediation techniques, 106 bio-slurry remediation method has become one of the popular technologies for pesticidecontaminated soil remediation (Table 4). 73 Aerobic bio-slurry remediation can effectively treat soils contaminated with pesticide.…”

Section: Remediation Of Pesticide-contaminated Soilmentioning

confidence: 99%

Research progress of bio-slurry remediation technology for organic contaminated soil

et al. 2023

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“…An integrated approach uses different remediation strategies to remediate Sb-contaminated soils ( Sun et al., 2020 ). Different authors around the globe used integrated approaches and obtained appreciable results to reduce the toxicity of Sb ( Chirakkara et al., 2015 ; Sánchez et al., 2020 ; Girolkar et al., 2021 ).…”

Section: Use Of Plant Additives To Reduce Sb Toxicitymentioning

confidence: 99%

Toxic effects of antimony in plants: Reasons and remediation possibilities—A review and future prospects

Tang

Meng²,

Xiang³

et al. 2022

Front. Plant Sci.

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Antimony (Sb) is a dangerous heavy metal (HM) that poses a serious threat to the health of plants, animals, and humans. Leaching from mining wastes and weathering of sulfide ores are the major ways of introducing Sb into our soils and aquatic environments. Crops grown on Sb-contaminated soils are a major reason of Sb entry into humans by eating Sb-contaminated foods. Sb toxicity in plants reduces seed germination and root and shoot growth, and causes substantial reduction in plant growth and final productions. Moreover, Sb also induces chlorosis, causes damage to the photosynthetic apparatus, reduces membrane stability and nutrient uptake, and increases oxidative stress by increasing reactive oxygen species, thereby reducing plant growth and development. The threats induced by Sb toxicity and Sb concentration in soils are increasing day by day, which would be a major risk to crop production and human health. Additionally, the lack of appropriate measures regarding the remediation of Sb-contaminated soils will further intensify the current situation. Therefore, future research must be aimed at devising appropriate measures to mitigate the hazardous impacts of Sb toxicity on plants, humans, and the environment and to prevent the entry of Sb into our ecosystem. We have also described the various strategies to remediate Sb-contaminated soils to prevent its entry into the human food chain. Additionally, we also identified the various research gaps that must be addressed in future research programs. We believe that this review will help readers to develop the appropriate measures to minimize the toxic effects of Sb and its entry into our ecosystem. This will ensure the proper food production on Sb-contaminated soils.

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Biotechnology for soil decontamination: opportunity, challenges, and prospects for pesticide biodegradation

Cited by 33 publications

References 90 publications

Bioaugmentation With a Consortium of Bacterial Sodium Lauryl Ether Sulfate-Degraders for Remediation of Contaminated Soils

Bioaugmentation With a Consortium of Bacterial Sodium Lauryl Ether Sulfate-Degraders for Remediation of Contaminated Soils

Research progress of bio-slurry remediation technology for organic contaminated soil

Toxic effects of antimony in plants: Reasons and remediation possibilities—A review and future prospects

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