Enhancing remediation of RDX-contaminated soil by introducing microbial formulation technology coupled with biostimulation

Khan, Mohd Aamir; Sharma, Abhıshek; Yadav, Sonal; Celin, S. Mary; Sharma, Satyawati; Noureldeen, Ahmed; Darwish, Hadeer

doi:10.1016/j.jece.2021.106019

Cited by 7 publications

(3 citation statements)

References 43 publications

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“…For example, Khan and collaborators in 2021, proposed a model in which a biostimulant, coupled with Kinneretia asachharohila strain 12853, plays a crucial role in creating a robust microbial formulation and enhancing metabolism to achieve suitable removal efficiency (2.4 more efficient in the use of biostimulant an up to 75% of denitration). Specific strains play roles in protecting, boosting, and providing specialized degradation to ensure survival and proliferation [ 77 ].…”

Section: Innovative Bioremediation Strategiesmentioning

confidence: 99%

Review of Explosive Contamination and Bioremediation: Insights from Microbial and Bio-Omic Approaches

Corredor,

Duchicela,

Flores

et al. 2024

Toxics

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Soil pollution by TNT(2,4,6-trinitrotoluene), RDX(hexahydro-1,3,5-trinitro-1,3,5-triazacyclohexane), and HMX(octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine), resulting from the use of explosives, poses significant challenges, leading to adverse effects such as toxicity and alteration of microbial communities. Consequently, there is a growing need for effective bioremediation strategies to mitigate this damage. This review focuses on Microbial and Bio-omics perspectives within the realm of soil pollution caused by explosive compounds. A comprehensive analysis was conducted, reviewing 79 articles meeting bibliometric criteria from the Web of Science and Scopus databases from 2013 to 2023. Additionally, relevant patents were scrutinized to establish a comprehensive research database. The synthesis of these findings serves as a critical resource, enhancing our understanding of challenges such as toxicity, soil alterations, and microbial stress, as well as exploring bio-omics techniques like metagenomics, transcriptomics, and proteomics in the context of environmental remediation. The review underscores the importance of exploring various remediation approaches, including mycorrhiza remediation, phytoremediation, bioaugmentation, and biostimulation. Moreover, an examination of patented technologies reveals refined and efficient processes that integrate microorganisms and environmental engineering. Notably, China and the United States are pioneers in this field, based on previous successful bioremediation endeavors. This review underscores research’s vital role in soil pollution via innovative, sustainable bioremediation for explosives.

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Section: Innovative Bioremediation Strategiesmentioning

confidence: 99%

Review of Explosive Contamination and Bioremediation: Insights from Microbial and Bio-Omic Approaches

Corredor,

Duchicela,

Flores

et al. 2024

Toxics

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“…Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) is an explosive compound widely used in military applications, mining, and industrial sectors. However, its persistence in the environment has raised concerns about soil pollution [17,18]. The compound's resistance to decomposition and its limited solubility contribute to its long-term presence in soils.…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Review of Remediation Strategies for Soil and Groundwater Contaminated with Explosives

Mystrioti,

Papassiopi

2024

Sustainability

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This study offers an updated overview of the soil and water remediation strategies employed to address the widespread environmental and public health risks associated with explosive compounds, particularly TNT and RDX. Recognizing soil contamination originating from military activities, industrial accidents, and historical land use, this review delves into physical, chemical, and biological approaches to mitigating ecological and human health concerns. While physical methods like excavation and disposal are effective, their applicability is constrained by cost and logistical challenges for large contaminated areas. Chemical methods, such as oxidation and reduction, focus on transforming explosives into less toxic byproducts. Biological remediation utilizing plants and microorganisms emerges as a cost-effective and sustainable alternative. This review highlights challenges, including the persistence of explosive compounds, potential groundwater leaching, and the necessity for long-term monitoring. Emphasizing the need for site-specific strategies, considering the contaminant type, concentration, soil properties, and regulatory requirements, this study advocates for integrated and sustainable remediation approaches in pilot-scale applications. It concludes by evaluating the appropriate solution based on the advantages and disadvantages of the categories of soil and groundwater remediation methods. The duration, the effectiveness, and the cost of available technologies were estimated.

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“…Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), a kind of nitramine explosive, has detrimental effects on both aquatic and terrestrial life forms [ 1 ]. Despite being stable and persistent in the environment [ 2 ], RDX has been observed to undergo degradation by various microorganisms [ 3 ]. Since the last century, numerous strains have been discovered to be capable of degrading RDX, including Rhodococcus sp.…”

Section: Introductionmentioning

confidence: 99%

Multi-Omics Strategies to Investigate the Biodegradation of Hexahydro-1,3,5-trinitro-1,3,5-triazine in Rhodococcus sp. Strain DN22

Zhou,

Yao,

et al. 2023

Microorganisms

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Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) is an energetic and persistent explosive with long-lasting properties. Rhodococcus sp. strain DN22 has been discovered to be a microbe capable of degrading RDX. Herein, the complete genome of Rhodococcus sp. strain DN22 was sequenced and analyzed. The entire sequences of genes that encoded the two proteins participating in RDX degradation in Rhodococcus sp. strain DN22 were obtained, and were validated through proteomic data. In addition, few studies have investigated the physiological changes and metabolic pathways occurring within Rhodococcus sp. cells when treated with RDX, particularly through mass spectrometry-based omics. Hence, proteomic and metabolomic analyses were carried out on Rhodococcus sp. strain DN22 with the existence or lack of RDX in the medium. A total of 3186 proteins were identified between the two groups, with 115 proteins being significantly differentially expressed proteins. There were 1056 metabolites identified in total, among which 130 metabolites were significantly different. Through the combined analysis of differential proteomics and metabolomics, KEGG pathways including two-component system, ABC transporters, alanine, aspartate and glutamate metabolism, arginine biosynthesis, purine metabolism, nitrogen metabolism, and phosphotransferase system (PTS), were observed to be significantly enriched. These findings provided ponderable perspectives on the physiological alterations and metabolic pathways in Rhodococcus sp. strain DN22, responding to the existence or lack of RDX. This study is anticipated to expand the knowledge of Rhodococcus sp. strain DN22, as well as advancing understanding of microbial degradation.

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Enhancing remediation of RDX-contaminated soil by introducing microbial formulation technology coupled with biostimulation

Cited by 7 publications

References 43 publications

Review of Explosive Contamination and Bioremediation: Insights from Microbial and Bio-Omic Approaches

Review of Explosive Contamination and Bioremediation: Insights from Microbial and Bio-Omic Approaches

A Comprehensive Review of Remediation Strategies for Soil and Groundwater Contaminated with Explosives

Multi-Omics Strategies to Investigate the Biodegradation of Hexahydro-1,3,5-trinitro-1,3,5-triazine in Rhodococcus sp. Strain DN22

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