Transformation of hexabromocyclododecane in contaminated soil in association with microbial diversity

Le, Thao Thanh; Son, Min-Hui; Нам, И. Я.; Yoon, Hakwon; Kang, Yu-Gyeong; Chang, Yoon Seok

doi:10.1016/j.jhazmat.2016.11.058

Cited by 55 publications

(14 citation statements)

References 44 publications

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“…The direct use of microorganisms with distinctive features of catabolic potential and/or their products such as enzymes and bio surfactant is a novel approach to enhance and boost their remediation efficacy [ 15 , 16 ]. Different alternatives have also been anticipated to widen the applications of microbiological techniques towards the remediation of heavy metals.…”

Section: Introductionmentioning

confidence: 99%

Toxicity and Bioremediation of Heavy Metals Contaminated Ecosystem from Tannery Wastewater: A Review

Igiri

Okoduwa

Idoko

et al. 2018

Journal of Toxicology

623

232

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The discharge of untreated tannery wastewater containing biotoxic substances of heavy metals in the ecosystem is one of the most important environmental and health challenges in our society. Hence, there is a growing need for the development of novel, efficient, eco-friendly, and cost-effective approach for the remediation of inorganic metals (Cr, Hg, Cd, and Pb) released into the environment and to safeguard the ecosystem. In this regard, recent advances in microbes-base heavy metal have propelled bioremediation as a prospective alternative to conventional techniques. Heavy metals are nonbiodegradable and could be toxic to microbes. Several microorganisms have evolved to develop detoxification mechanisms to counter the toxic effects of these inorganic metals. This present review offers a critical evaluation of bioremediation capacity of microorganisms, especially in the context of environmental protection. Furthermore, this article discussed the biosorption capacity with respect to the use of bacteria, fungi, biofilm, algae, genetically engineered microbes, and immobilized microbial cell for the removal of heavy metals. The use of biofilm has showed synergetic effects with many fold increase in the removal of heavy metals as sustainable environmental technology in the near future.

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Section: Introductionmentioning

confidence: 99%

Toxicity and Bioremediation of Heavy Metals Contaminated Ecosystem from Tannery Wastewater: A Review

Igiri

Okoduwa

Idoko

et al. 2018

Journal of Toxicology

623

232

View full text Add to dashboard Cite

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“…The maximum 2-BCD removal effi ciency (63.6%) found in the anaerobic/aerobic sequential biological reactor system was higher than the study performed by Kassotaki, Buttiglieri, Ferrando-Climent, Rodriguez-Roda & Pijuan [24]. They found 6.5% of 2-BCD removal effi ciency in a sequencing batch reactor having a volume of 8 L treating synthetic wastewater at 24 h HRT and at 30 °C for 100 μg L -1 initial -HBCDD concentration [25][26][27][28].…”

Section: Total α-Hbcdd Removals In Anaerobic/aerobic Sequential Biological Reactor Systemmentioning

confidence: 72%

“…In a microbial community, gram-positive bacteria population decreased the  -HBCDD removals ( 6,5%) and gram positive bacteria like Brassia rhizosphere, Sphingomonas sp. increased the aerobic degradation of-HBCDD( 13%) [7]. Besides, 13 bacterial strains were isolated from a contaminated soil sample and tested for the degradation of -HBCDD in aerobic environment.…”

Section: Introductionmentioning

confidence: 99%

Biological treatment of a brominated micropollutant α-hexabromocyclododecane (α-HBCDD) from a raw hospital wastewater

Güney¹

2020

J Cardiovasc Med Cardiol

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The brominated micropollutants were not removed with conventional biological treatment processes. In this study it was aimed to treat the  -HBCDD which is a hydrophobic organic substance using a sequential treatment process consisting from an upfl ow anaerobic batch reactor (UASB) and a completely stirred tank reactor (CSTR) since -HBCDD is a hydrophobic brominated micropollutant and its removals was very low under long retention times in anaerobic sediments (in monitored natural attenuation environments) and under aerobic stimulated environments (in conditions adding limiting nutrient and electron acceptors for support the microorganisms growth), separately, a sequential anaerobic/aerobic reactor system proses was choosen. The anaerobic and aerobic removals of -HBCDD were 7% and 12%, respectively, at a SRT of 55 days. The effects of SRTs on -HBCDD and its metabolite removals was investigated. The yields increased as the SRT was increased from 5 days up to 55 days. The total -HBCDD yields in the whole sequential biological system was recorded as 18,3%. The metabolite of -HBCDD is 2-Bromocyclododecan-1-ol (2-BCD). This metabolite was produced under anaerobic conditions and it was removed in aerobic reactor with a yield of 17% at 55 days SRT. The maximum 2-BCD removal effi ciency was 63,6% in the sequential reactor process.

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“…Soil microorganisms are readily subjected to dioxin exposure and respond by a range of biological alterations that can influence microbial diversity and functionality (Cerniglia 1984;Hanano et al 2014c). Enzymatic activity is now considered as one of the most useful indicators for assessing exposure levels of microbial communities to stressors (Yao et al 2018;Field and Sierra-Alvarez 2008;Anasonye et al 2014;Le et al 2017). Consequently, many bacterial and somewhat fewer fungal species have been identified and characterized as potential bioindicators and/or biodegraders of dioxins (Hiraishi et al 2001(Hiraishi et al , 2003bHanano et al 2019a;Stella et al 2017;Magan et al 2010;Rubilar et al 2011).…”

Section: Effects Of Dioxins On Lipid Metabolism In Soil Microorganismsmentioning

confidence: 99%

Dioxin impacts on lipid metabolism of soil microbes: towards effective detection and bioassessment strategies

Mahfouz

Mansour

Murphy

et al. 2020

Bioresour. Bioprocess.

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Dioxins are the most toxic known environmental pollutants and are mainly formed by human activities. Due to their structural stability, dioxins persist for extended periods and can be transported over long distances from their emission sources. Thus, dioxins can be accumulated to considerable levels in both human and animal food chains. Along with sediments, soils are considered the most important reservoirs of dioxins. Soil microorganisms are therefore highly exposed to dioxins, leading to a range of biological responses that can impact the diversity, genetics and functional of such microbial communities. Dioxins are very hydrophobic with a high affinity to lipidic macromolecules in exposed organisms, including microbes. This review summarizes the genetic, molecular and biochemical impacts of dioxins on the lipid metabolism of soil microbial communities and especially examines modifications in the composition and architecture of cell membranes. This will provide a useful scientific benchmark for future attempts at soil ecological risk assessment, as well as in identifying potential dioxin-specific-responsive lipid biomarkers. Finally, potential uses of lipid-sequestering microorganisms as a part of biotechnological approaches to the bio-management of environmental contamination with dioxins are discussed.

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Transformation of hexabromocyclododecane in contaminated soil in association with microbial diversity

Cited by 55 publications

References 44 publications

Toxicity and Bioremediation of Heavy Metals Contaminated Ecosystem from Tannery Wastewater: A Review

Toxicity and Bioremediation of Heavy Metals Contaminated Ecosystem from Tannery Wastewater: A Review

Biological treatment of a brominated micropollutant α-hexabromocyclododecane (α-HBCDD) from a raw hospital wastewater

Dioxin impacts on lipid metabolism of soil microbes: towards effective detection and bioassessment strategies

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