Response and recovery of microbial communities subjected to oxidative and biological treatments of 1,4-dioxane and co-contaminants

Yu, Miao; Johnson, Nicholas W.; Gedalanga, Phillip B.; Adamson, David T.; Newell, Charles J.; Mahendra, Shaily

doi:10.1016/j.watres.2018.10.070

Cited by 46 publications

(17 citation statements)

References 63 publications

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“…Apart from the uncultured and unknown bacteria, Pseudolabrys, Rhizomicrobium, Candidatus_Solibacter, Opitutus and Bryobacter were the dominant genera across all samples. Pseudolabrys are ubiquitous in hydrocarbon-rich soil, and had been identified as hydrocarbon degraders (Miao et al 2019). In this study, Pseudolabrys was the most abundant genus; Fig.…”

Section: Discussionmentioning

confidence: 61%

Variations of rhizospheric soil microbial communities in response to continuous Andrographis paniculata cropping practices

Chen

et al. 2020

Bot Stud

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Background: Changes of soil microbial communities are one of the main factors of continuous cropping problem. Andrographis paniculata has been reported to have replant problem in cultivation. However, little is known about the variations of rhizosphere soil microbial communities of A. paniculata under a continuous cropping system. Here, Illumina MiSeq was used to investigate the shifts of rhizospheric bacterial and fungal communities after continuous cropping of A. paniculata. Results: The bacterial diversity increased whereas the fungal diversity decreased in rhizosphere soil after consecutive A. paniculata monoculture; and the soil microbial community structure differed between newly plant soil and continuous cropped soil. Taxonomic analyses further revealed that the bacterial phyla Proteobacteria, Acidobacteria and Bacteroidetes and the fungal phyla Zygomycota, Ascomycota and Cercozoa were the dominant phyla across all soil samples. The relative abundance of phyla Acidobacteria and Zygomycota were significantly increased after continuous cropping. Additionally, the most abundant bacterial genus Pseudolabrys significantly decreased, while the predominant fungal genus Mortierella increased considerably in abundance after continuous cropping. Conclusions: Our results revealed the changes on diversity and composition of bacterial and fungal communities in rhizospheric soil under continuous cropping of A. paniculata. These data contributed to the understanding of soil micro-ecological environments in the rhizosphere of A. paniculata.

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Section: Discussionmentioning

confidence: 61%

Variations of rhizospheric soil microbial communities in response to continuous Andrographis paniculata cropping practices

Chen

et al. 2020

Bot Stud

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“…Fenton-HPCD surfactant 16 PAH listed by USEPA 1090 mg/kg 99 [109] Fenton-bioremediation 16 PAHs 263.6 ± 73.3 and 385.2 ± 39.6 mg/kg 5-6 rings 78-90; 2-4 rings 52-85 [28] Fenton-bioremediation 1,4-dioxane 100 [110] Fenton-bioremediation Lubricants 10,000 mg/kg 99.2 [70] Fenton-bioaugmentation serial foam PEH 7470 mg/kg 92 [111] Fenton-anoxicbiodegradation 16 PAHs 350.07 mg/kg 33.2-95.9 [112] Fenton-pre-oxidationbioremediation PEH 12,178 ± 390 mg/kg 42 ± 1.43 [113] Fenton Fenton-pre-oxidationbioremediation Crude oil 23,440 ± 390 mg/kg 53 [115] Fenton-like treatment-bioremediation Diesel 700-2600 mg/kg 75 [116] Fenton-like reaction combined with Phanerochaete chrysosporium Polybrominated diphenyl ethers 18.70 ± 0.08 ng/g 55.5 ± 6.0-72.6 ± 3.6 [117] Tween 80 surfactant-electro-Fenton Diesel 50 g/kg 87.2 [118] Sono-photo-Fenton TPH 15 g/kg 99 [119] PMS in presence of Fe (V) PCB > 1000 mg/kg 40 [120] PS…”

Section: Process Description Contaminant and Concentration Removal Ef...mentioning

confidence: 99%

Recent Developments in Advanced Oxidation Processes for Organics-Polluted Soil Reclamation

et al. 2022

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Soil pollution has become a substantial environmental problem which is amplified by overpopulation in different regions. In this review, the state of the art regarding the use of Advanced Oxidation Processes (AOPs) for soil remediation is presented. This review aims to provide an outline of recent technologies developed for the decontamination of polluted soils by using AOPs. Depending on the decontamination process, these techniques have been presented in three categories: the Fenton process, sulfate radicals process, and coupled processes. The review presents the achievements of, and includes some reflections on, the status of these emerging technologies, the mechanisms, and influential factors. At the present, more investigation and development actions are still desirable to bring them to real full-scale implementation.

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“…In the environment, 1,4-dioxane has shown remarkable recalcitrance to natural biological and chemical attenuation processes, and its removal by traditional water treatment approaches has proven to be a challenge. Generally, strong oxidants are needed to activate the diether ring. − Several studies have demonstrated that advanced oxidation processes (AOPs) such as H 2 O 2 , plasma, UV, peroxymonosulfate, and ozone treatment are effective in generating reactive oxygen species (ROS) to degrade 1,4-dioxane. − Electrochemical oxidation has emerged as a promising technology to remove persistent organic pollutants − because it is cost-competitive with other AOPs and can be implemented for in situ groundwater treatment by using mesh electrodes. , Indirect oxidation through generated ROS such as ·OH and direct electron transfer were shown as the main degradation mechanism of this technology . However, in spite of the effectiveness of the electrochemical oxidation processes, high capital costs and considerable energy consumption have thus far deferred field-scale applications.…”

Section: Introductionmentioning

confidence: 99%

Bioelectrochemical Treatment of 1,4-Dioxane in the Presence of Chlorinated Solvents: Design, Process, and Sustainability Considerations

Pica

Johnson

et al. 2021

ACS Sustainable Chem. Eng.

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1,4-Dioxane is one of the most frequently detected organic water contaminants and often co-occurs with chlorinated volatile organic compounds due to its use as solvent stabilizer. Its recalcitrance challenges natural attenuation processes and conventional water treatment technologies. Here, we examined the bioelectrochemical oxidation of 1,4-dioxane using dimensionally stable mesh electrodes in flow-through reactors coupled with bioaugmentation by Pseudonocardia dioxanivorans CB1190. 1,4-Dioxane influent concentrations were rapidly reduced from 100000 μg/L by more than 4 orders of magnitude to below our detection limit of 3 μg/L. The application of an electric potential was associated with a higher abundance of P. dioxanivorans CB1190 in both sessile and planktonic states. The presence of 5 mg/L 1,1-dichloroethene, the strongest known chlorinated solvent inhibitor of 1,4-dioxane biodegradation, reduced 1,4-dioxane degradation rates by factors of 2–4 inspite of >99% electrochemical removal. In comparison with direct electrochemical 1,4-dioxane oxidation, the coupling with biological oxidation reduced energy consumption, material usage, and, consequently, overall treatment costs by about 1 order of magnitude while generating lower amounts of disinfection byproducts. Our results establish that bioelectrochemical treatment is a synergistic, sustainable technology for water contaminated with 1,4-dioxane and chlorinated co-contaminants to meet strict regulatory thresholds.

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Response and recovery of microbial communities subjected to oxidative and biological treatments of 1,4-dioxane and co-contaminants

Cited by 46 publications

References 63 publications

Variations of rhizospheric soil microbial communities in response to continuous Andrographis paniculata cropping practices

Variations of rhizospheric soil microbial communities in response to continuous Andrographis paniculata cropping practices

Recent Developments in Advanced Oxidation Processes for Organics-Polluted Soil Reclamation

Bioelectrochemical Treatment of 1,4-Dioxane in the Presence of Chlorinated Solvents: Design, Process, and Sustainability Considerations

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