Removal of Decachlorobiphenyl in Vermicomposting Process Amended with Rabbit Manure and Peat Moss

Villalobos-Maldonado, Juan José; Meza‐Gordillo, Rocío; Mancilla-Margalli, N. Alejandra; Ayora‐Talavera, Teresa; Rodríguez-Mendiola, M. A.; Arias-Castro, Carlos; Vázquez-Villegas, Paola T.; Gutiérrez-Miceli, Federico Antonio; Ruíz-Valdiviezo, Víctor Manuel

doi:10.1007/s11270-015-2400-z

Cited by 13 publications

(8 citation statements)

References 33 publications

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“…Villalobos-Maldonado et al [8] evaluated the removal of decachlorobiphenyl using Eisenia fetida and non-sterile conditions, finding a removal of 95.38% in the first seven days of the experiment, without showing a statistically significant difference between the use of three or five earthworms per experimental unit from an initial decachlorobiphenyl concentration of 200 mg/L. This means that the use of earthworms with microorganisms in the environment where the vermicomposting process is performed, having immersed to the contaminant, play an important role in the process of removal of COPs as polychlorinated biphenyls or pesticides, regardless the use of three or five earthworms.…”

Section: Optimization Of Endosulfan Lactone Removalmentioning

confidence: 99%

“…Peat moss was a commercial product, obtained from Promix Canadian Sphagnum (Quebec, QC, Canada); it was milled to particle diameter (0.144 mm) and used as support for the earthworms. The solid substrate used was composed by 85% peat moss and 15% pre-dried and ground rabbit manure [8].…”

Section: Raw Materials and Solid Substratementioning

confidence: 99%

“…One solution is the vermicomposting process, which can aid in the removal of certain POC's from soil, add nutrients and stimulate crop production. Vermicomposting is a low-cost eco-technological process that stimulates the biooxidation, degradation, and stabilization of organic residues in soil via the joint action of earthworms and microorganisms [5,7,8]. This efficient technological process can convert organic waste and contaminants into value-added products for ecological soil restoration [9].…”

Section: Introductionmentioning

confidence: 99%

“…In the last stage, maturation and cooling, the rocky aggregates are stabilized, creating a homogeneous final product with fine granulometry. Earthworms, such as Eisenia fetida (common names such as redworm, brandling worm, panfish worm, trout worm, tiger worm, and red wiggler worm), promote the removal of POC's such as polycyclic aromatic hydrocarbons (PAH's) [7] and polychlorinated biphenyls (PCB's) [8]. Eisenia fetida also feed on organic matter and contaminants present in the soil, improving its structure and aeration [9].…”

Section: Introductionmentioning

confidence: 99%

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Vermicomposting Process to Endosulfan Lactone Removal in Solid Substrate Using Eisenia fetida

et al. 2021

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Pesticide by-products found in soil are usually more toxic and persistent than the pesticides themselves. For example, Endosulfan lactone (EL) (a by-product of the organochloride pesticide endosulfan). EL is created by the enzymatic activity (and related oxidative processes) of microorganisms in the soil. A sustainable method of EL removal is the introduction of Eisenia fetida earthworm. In this paper, it will be demonstrated the impact of vermicomposting process related to Eisenia fetida earthworm on EL by measuring initial and final concentrations of the compound and overall enzymatic activity in sterile and non-sterile solid substrate over 56 days. As a baseline, it be observed there were higher EL removals in non-sterile solid substrate (90.86%) at day 5 than in sterile solid substrate (83.86%) at day 14. In samples with Eisenia fetida, the presence of EL in non-sterile solid substrate was 36%, however in sterile solid substrate it was only 18% at day 1 and 7, with a maximum enzyme activity of 0.4659 mmol/mg protein per min at day 7. The evidence found in this study suggests that EL removal in a non-sterile solid substrate is higher when a vermicomposting is present and that the influence of microorganisms from the solid substrate with the earthworm, increases removal.

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Section: Optimization Of Endosulfan Lactone Removalmentioning

confidence: 99%

Section: Raw Materials and Solid Substratementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Vermicomposting Process to Endosulfan Lactone Removal in Solid Substrate Using Eisenia fetida

et al. 2021

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“…The solid substrate used was composed of 85% peat moss and 15% rabbit manure [23] that was previously dried, ground, and sieved to a particle size of 0.2 and 0.5 mm.…”

Section: Raw Materialsmentioning

confidence: 99%

Optimization and Validation of an Extraction Method for Endosulfan Lactone on a Solid Substrate

et al. 2021

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Endosulfan lactone is a metabolite obtained from the biological oxidation of the insecticide endosulfan by action of the microorganisms present in the soil. This metabolite is more toxic and persistent than the parent compound. Therefore, it is extremely important to be able to determine the presence of this metabolite in the soil. However, accessible methods for extraction of endosulfan lactone in soil were not found in published literature. For this reason, the aim of this study was to evaluate two conventional methods of liquid–solid extraction for the determination of endosulfan lactone in solid substrate using two solvents (ethyl acetate and acetonitrile) and HPLC UV-VIS. The acetonitrile and rotary agitation extraction method was the one with the highest efficiency (97%), optimized using a factorial 32 response surface design, and validated in terms of linearity and precision. The linearity shown was r > 0.999 in a wide spike level (0.15–100 mg kg−1), with the detection limit (DL) of 0.045 mg kg−1 and quantification limit (QL) of 0.15 mg kg−1. The extraction of endosulfan lactone in solid substrate using acetonitrile was more efficient than that used with ethyl acetate, so this method could be used to extract and quantify endosulfan lactone in agricultural soil.

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Removal of High Concentrations Decachlorobiphenyl of Earthworm Eisenia fetida and its Symbiotic Bacteria in a Vermicomposting System

Zenteno-Rojas

Martı́nez-Romero

Rincón-Molina

et al. 2019

Water Air Soil Pollut

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Persistent organic pollutants (POPs) such as polychlorinated biphenyls (PCBs) are a group of high-risk synthetic substances for human and environmental health. Currently, the study of sites contaminated by the spillage of equipment PCBs containing have been considered targeted areas for the study of bacterial communities with potential for PCBs degradation. There in isolation of bacterial strains is vital for use in biodegradable processes, such as bacterial bioaugmentation, which accelerates the development of phenomena such as natural attenuation of contaminated sites. The objective of this study was to assess biodiversity of bacteria contained in anthropogenic contaminated soils (H S and H P) with PCBs compared to a control sample without contaminant and the modi ed forest (F) and agricultural (A) soil in the laboratory with 100 mg L-1 PCB. For the analysis of 16S rRNA genes ampli ed from DNA extracted from the soils evaluated, the latest generation of Illumina Miseq and Sanger sequencing for the cultivable strains were detected. The bacteria identi ed as the most abundant bacterial phyla for H S and H P soil was Proteobacteria (56.7%) and Firmicutes (22.9%), which decreased in F and A soils. The most abundant bacterial genera were Burkholderia, Bacillus, Acinetobacter, Comamonas and Cupriavidus. Several species identi ed in this study, such as Bacillus cereus, Burkholderia cepacia, Comamonas testosteroni and Acinetobacter pittii have been reported as PCBs degraders. Finally, by means of a principal component analysis (PCA), a correlation between the physical and chemical characteristics of the soils in relation to the relative abundances of the bacteria identi ed was obtained. The C/N ratio was directly related to the control soil (without contaminant), while SOM maintained a relationship with F and A soils and the bacterial abundances were directly related to Hs and Hp soils due to the presence of aroclor 1260. Bacteria with the ability to tolerate high concentrations of this pollutant are considered for future use in biostimulation and bioaugmentation processes in contaminated soils.

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Removal of Decachlorobiphenyl in Vermicomposting Process Amended with Rabbit Manure and Peat Moss

Cited by 13 publications

References 33 publications

Vermicomposting Process to Endosulfan Lactone Removal in Solid Substrate Using Eisenia fetida

Vermicomposting Process to Endosulfan Lactone Removal in Solid Substrate Using Eisenia fetida

Optimization and Validation of an Extraction Method for Endosulfan Lactone on a Solid Substrate

Removal of High Concentrations Decachlorobiphenyl of Earthworm Eisenia fetida and its Symbiotic Bacteria in a Vermicomposting System

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