Recent advancements in microbial-assisted remediation strategies for toxic contaminants

Sharma, Pooja; Bano, Ambreen; Singh, Surendra; Dubey, Nawal Kishore; Chandra, Ram; Iqbal, Hafiz M.N.

doi:10.1016/j.clce.2022.100020

Cited by 39 publications

(13 citation statements)

References 88 publications

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“… 3 , 4 , 49 In order to successful complete the remediation process, fungi interact with the bacteria to release exudates, which serve as a source of energy and stimulate bacterial activity. 13 , 58 , 59 Fungi also have the ability to detoxify EECCs using their peptides, which enhance the accumulation of contaminants such as heavy metals. 7 , 13 , 60 Table 4 provides a number of microorganisms that could be employed for the removal of hazardous heavy metals from the environment.…”

Section: Remediation Technology Of Eeccmentioning

confidence: 99%

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Emerging environmental contaminants: Sources, effects on biodiversity and humans, remediation, and conservation implications

Ojija

2024

Science Progress

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Ecosystems, biodiversity, and the human population all depend on a quality or uncontaminated environment. Quality environment provides people and wildlife access to nutrition, medications, dietary supplements, and other ecosystem services. The conservation of biodiversity—that is, species richness, abundance, heredities, and diversity—as well as the control of climate change are facilitated by such an uncontaminated environment. However, these advantages are jeopardized by newly emerging environmental chemical contaminants (EECCs) brought on by increased industrialization and urbanization. In developing countries, inadequate or poor environmental policies, infrastructure, and national standards concerning the usage, recycling, remediation, control, and management of EECCs hasten their effects. EECCs in these countries negatively affect biodiversity, ecological services and functions, and human health. This review reveals that the most deprived or vulnerable local communities in developing countries are those residing near mining or industrial areas and cultivating their crops and vegetables on contaminated soils, as is wildlife that forages or drinks in EECC-contaminated water bodies. Yet, people in these countries have limited knowledge about EECCs, their threats to human well-being, ecosystem safety, and the environment, as well as remediation technologies. Besides, efforts to efficiently control, combat, regulate, and monitor EECCs are limited. Thus, the review aims to increase public knowledge concerning EECCs in developing countries and present a comprehensive overview of the current status of EECCs. It also explores the sources and advancements in remediation techniques and the threats of EECCs to humans, ecosystems, and biodiversity.

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Section: Remediation Technology Of Eeccmentioning

confidence: 99%

“… 7 , 13 , 60 Table 4 provides a number of microorganisms that could be employed for the removal of hazardous heavy metals from the environment. 13 , 59 …”

Section: Remediation Technology Of Eeccmentioning

confidence: 99%

Emerging environmental contaminants: Sources, effects on biodiversity and humans, remediation, and conservation implications

Ojija

2024

Science Progress

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“…The principle of microbial remediation of the environment is a topic that people have always been working on researching (White et al, 1998 ; Cruz et al, 2017 ; Sharma et al, 2022 ; Verma et al, 2023 ; Torres-Farradá et al, 2024 ). Utilizing microbial remediation techniques can not only clean and efficiently reduce environmental pollution but also restore and rebuild ecosystems, maintaining ecosystem stability (Singh et al, 2019 ; Lu et al, 2023 ; Saeed et al, 2023 ).…”

Section: Introductionmentioning

confidence: 99%

Important soil microbiota's effects on plants and soils: a comprehensive 30-year systematic literature review

Wang,

Chi,

Song

2024

Front. Microbiol.

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Clarifying the relationship between soil microorganisms and the plant-soil system is crucial for encouraging the sustainable development of ecosystems, as soil microorganisms serve a variety of functional roles in the plant-soil system. In this work, the influence mechanisms of significant soil microbial groups on the plant-soil system and their applications in environmental remediation over the previous 30 years were reviewed using a systematic literature review (SLR) methodology. The findings demonstrated that: (1) There has been a general upward trend in the number of publications on significant microorganisms, including bacteria, fungi, and archaea. (2) Bacteria and fungi influence soil development and plant growth through organic matter decomposition, nitrogen, phosphorus, and potassium element dissolution, symbiotic relationships, plant growth hormone production, pathogen inhibition, and plant resistance induction. Archaea aid in the growth of plants by breaking down low-molecular-weight organic matter, participating in element cycles, producing plant growth hormones, and suppressing infections. (3) Microorganism principles are utilized in soil remediation, biofertilizer production, denitrification, and phosphorus removal, effectively reducing environmental pollution, preventing soil pathogen invasion, protecting vegetation health, and promoting plant growth. The three important microbial groups collectively regulate the plant-soil ecosystem and help maintain its relative stability. This work systematically summarizes the principles of important microbial groups influence plant-soil systems, providing a theoretical reference for how to control soil microbes in order to restore damaged ecosystems and enhance ecosystem resilience in the future.

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“…Microbial remediation of pollutants generally refers to the use of natural or arti cially cultivated functional microorganisms to transform pollutants either completely to CO 2 and H 2 O (for organic pollutants) or into less harmful substances (Tekere et al, 2019;Mishra et al, 2001;Silva-Castro et al, 2013). Such bioremediation approach has been widely accepted as a technique for decontaminating a polluted environment including air, water and soil owing to its environmentally friendly and sustainable nature (Sharma et al, 2022;Tiwari et al, 2020;Chen et al, 2020). When it is applied in the microbial remediation of petroleum contaminated soil (also referred to as oily soil), the polluting petroleum hydrocarbons are used as the carbon source for microbial metabolism to degrade the pollutants into less toxic forms.…”

Section: Introductionmentioning

confidence: 99%

Pilot-scale field studies on activated microbial remediation of petroleum contaminated soil

Sun

Luo

et al. 2023

Preprint

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A simple and cost-effective microbial remediation process has been developed for the treatment of petroleum contaminated soil by adding microbial activators to active the native microorganisms for enhancing the degradation of petroleum hydrocarbon. The microbial activator is formulated to provide nitrogen sources, phosphorus sources, trace elements, growth factors, biosurfactants, and soil pH regulators. The field trials, involving two 500 m3 oily soil samples with initial oil content of 5.01% and 2.15%, respectively, show that the petroleum hydrocarbon content can be reduced to 0.41% and 0.02%, respectively, in 50 days, reaching the national standard of cultivated land category II. The treatment period is significantly shorter than the commonly used composting and bioaugmentation methods. The remediation effect of microbial activator on oily soil was investigated through the germination experiment of rye seeds. The results showed that the activator itself could not only activate the functional microorganisms in the soil, but also reduce the biological toxicity of oily soil. After 40 days of treatment, the germination rate of rye seeds increased from 20–90%, indicating that the microbial activator could be effectively used for rapid in-situ remediation of oil contaminated soil.

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Recent advancements in microbial-assisted remediation strategies for toxic contaminants

Cited by 39 publications

References 88 publications

Emerging environmental contaminants: Sources, effects on biodiversity and humans, remediation, and conservation implications

Emerging environmental contaminants: Sources, effects on biodiversity and humans, remediation, and conservation implications

Important soil microbiota's effects on plants and soils: a comprehensive 30-year systematic literature review

Pilot-scale field studies on activated microbial remediation of petroleum contaminated soil

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