Metabolome patterns identify active dechlorination in bioaugmentation consortium SDC-9™

May, Amanda L.; Xie, Ying; Murdoch, Fadime Kara; Michalsen, Mandy M.; Löffler, Frank E.; Campagna, Shawn R.

doi:10.3389/fmicb.2022.981994

Cited by 3 publications

(1 citation statement)

References 43 publications

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“…An interesting and novel method that, in addition to presence also monitors activity, is the use of metabolomics to get a snapshot of the in situ metabolic state of a dechlorination-active microbiome following bioaugmentation (May et al, 2022). This technology could be adapted for any genetically well-characterized situation, but performance monitoring requires a high level of technical capability.…”

Section: Biostimulation Vs Bioaugmentationmentioning

confidence: 99%

Bioremediation of contaminated soil and groundwater by in situ biostimulation

Romantschuk,

Lahti-Leikas,

Kontro

et al. 2023

Front. Microbiol.

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Bioremediation by in situ biostimulation is an attractive alternative to excavation of contaminated soil. Many in situ remediation methods have been tested with some success; however, due to highly variable results in realistic field conditions, they have not been implemented as widely as they might deserve. To ensure success, methods should be validated under site-analogous conditions before full scale use, which requires expertise and local knowledge by the implementers. The focus here is on indigenous microbial degraders and evaluation of their performance. Identifying and removing biodegradation bottlenecks for degradation of organic pollutants is essential. Limiting factors commonly include: lack of oxygen or alternative electron acceptors, low temperature, and lack of essential nutrients. Additional factors: the bioavailability of the contaminating compound, pH, distribution of the contaminant, and soil structure and moisture, and in some cases, lack of degradation potential which may be amended with bioaugmentation. Methods to remove these bottlenecks are discussed. Implementers should also be prepared to combine methods or use them in sequence. Chemical/physical means may be used to enhance biostimulation. The review also suggests tools for assessing sustainability, life cycle assessment, and risk assessment. To help entrepreneurs, decision makers, and methods developers in the future, we suggest founding a database for otherwise seldom reported unsuccessful interventions, as well as the potential for artificial intelligence (AI) to assist in site evaluation and decision-making.

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Section: Biostimulation Vs Bioaugmentationmentioning

confidence: 99%

Bioremediation of contaminated soil and groundwater by in situ biostimulation

Romantschuk,

Lahti-Leikas,

Kontro

et al. 2023

Front. Microbiol.

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Optimal conditions for nano-emulsified vegetable oil synthesis for the biostimulation of 1,1,2-trichloroethane and vinyl chloride contaminated groundwater in bioreactors

Zhao,

Yang,

Zhang

et al. 2024

Journal of Cleaner Production

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Point-of-use filtration units as drinking water distribution system sentinels

Bai,

Xu,

Podar

et al. 2024

npj Clean Water

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Municipal drinking water distribution systems (DWDSs) and associated premise plumbing (PP) systems are vulnerable to proliferation of opportunistic pathogens, even when chemical disinfection residuals are present, thus presenting a public health risk. Monitoring the structure of microbial communities of drinking water is challenging because of limited continuous access to faucets, pipes, and storage tanks. We propose a scalable household sampling method, which uses spent activated carbon and reverse osmosis (RO) membrane point-of-use (POU) filters to evaluate mid- to long-term occurrence of microorganisms in PP systems that are relevant to consumer exposure. As a proof of concept, POU filter microbiomes were collected from four different locations and analyzed with 16S rRNA gene amplicon sequencing. The analyses revealed distinct microbial communities, with occasional detection of potential pathogens. The findings highlight the importance of local, and if possible, continuous monitoring within and across distribution systems. The continuous operation of POU filters offers an advantage in capturing species that may be missed by instantaneous sampling methods. We suggest that water utilities, public institutions, and regulatory agencies take advantage of end-of-life POU filters for microbial monitoring. This approach can be easily implemented to ensure drinking water safety, especially from microbes of emerging concerns; e.g., pathogenic Legionella and Mycobacterium species.

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Metabolome patterns identify active dechlorination in bioaugmentation consortium SDC-9™

Cited by 3 publications

References 43 publications

Bioremediation of contaminated soil and groundwater by in situ biostimulation

Bioremediation of contaminated soil and groundwater by in situ biostimulation

Optimal conditions for nano-emulsified vegetable oil synthesis for the biostimulation of 1,1,2-trichloroethane and vinyl chloride contaminated groundwater in bioreactors

Point-of-use filtration units as drinking water distribution system sentinels

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