Identification and quantification of known polycyclic aromatic hydrocarbons and pesticides in complex mixtures using fluorescence excitation–emission matrices and parallel factor analysis

Ferretto, Nicolas; Tedetti, Marc; Guigue, Catherine; Mounier, Stéphane; Redon, Roland; Goutx, Madeleine

doi:10.1016/j.chemosphere.2013.12.087

Cited by 103 publications

(48 citation statements)

References 41 publications

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“…Fluorescence peaks shown in Fig. 6 are also similar to those of several common polycyclic aromatic hydrocarbons previously investigated by Ferretto et al [60]; however, several of these peaks overlap with different organic compounds observed in previous studies [61][62][63][64]. While the EEMs obtained in our study support conclusions regarding the preferential diffusion of organic compounds based on membrane polymer chemistry, they also show that a key focal point in future studies must be the advancing of analytical capabilities for characterizing the DOC in produced water to better understand the preferential diffusion of organic compounds across different membranes.…”

Section: Rejection Of Dissolved Organic Carbon and Total Nitrogensupporting

confidence: 76%

Forward osmosis desalination of oil and gas wastewater: Impacts of membrane selection and operating conditions on process performance

Coday

Almaraz

Cath

2015

Journal of Membrane Science

124

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a b s t r a c tWater treatment technologies that employ sustainable driving forces for treatment of high ionic strength, complex feed streams and have the capacity to separate a broad range of contaminants are needed for economical treatment of flowback and produced waters in the oil and gas industry. This is especially true given the surging interest in treatment of oil and gas wastewaters for reuse in hydraulic fracturing or discharge to the environment in lieu of deep well injection. Forward osmosis is a robust membrane separation technology that can provide superior rejection of a broad range of feed stream contaminants and dissolved ions, thus providing a brine stream suitable for reuse in hydraulic fracturing or excellent pretreatment for downstream desalination processes. In this work, the impacts of membrane selection (asymmetric cellulose triacetate versus polyamide thin-film composite) and system operating conditions on the performance of FO membranes for desalination of produced water for the Niobrara shale formation are investigated. Specifically, water flux, contaminant rejection, membrane fouling, and chemical cleaning were evaluated using a combination of standard methodology and operating conditions analogous to those employed when operating industrial spiral wound FO membrane modules. Membrane autopsy was conducted to determine what effect(s) membrane physiochemical properties might have on system performance and to interpret the potential molecular level interactions occurring near the membrane-feed stream interface. Results from this study indicate that FO can achieve high rejection of organic and inorganic contaminants, membrane fouling can be mitigated with chemical cleaning, and long-term FO system performance might be better controlled with optimized hydrodynamic conditions near the membrane surface (i.e., feed flow velocity, module design, membrane packing) and not by membrane selection.

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Section: Rejection Of Dissolved Organic Carbon and Total Nitrogensupporting

confidence: 76%

Forward osmosis desalination of oil and gas wastewater: Impacts of membrane selection and operating conditions on process performance

Coday

Almaraz

Cath

2015

Journal of Membrane Science

124

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“…Analysis of the multivariate spectral characteristics of fDOM by generating an excitation-emission matrix (EEM) from a sample is a cost-effective analysis that requires minimal laboratory training and equipment and can produce a suite of informative data about the organic matter chemistry of the water. In marine ecosystems, the variation in fDOM characteristics has been used to differentiate between a variety of DOM sources including terrestrial (Coble, 1996), algal (Determann et al, 1998), microbial (Stedmon and Markager, 2005) and anthropogenic (Dabestani and Ivanov, 1999;Ferretto et al, A C C E P T E D M A N U S C R I P T (Chen et al, 2003;Helms et al, 2013;Osburn et al, 2013;Tedetti et al, 2011).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Fluorescent dissolved organic matter as a multivariate biogeochemical tracer of submarine groundwater discharge in coral reef ecosystems

et al. 2015

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I.M., Fluorescent dissolved organic matter as a multivariate biogeochemical tracer of submarine groundwater discharge in coral reef ecosystems, Marine Chemistry (2015), AbstractIn Hawaiʻi and other Pacific high islands submarine groundwater discharge (SGD) can be a significant and continuous source of solutes to nearshore reefs and may play a key role in the structure and function of benthic coral and algal communities.Identifying SGD sources and linking them to reef biogeochemistry is technically challenging. Here we analyzed spectra of fluorescent dissolved organic matter (fDOM) in coral reefs in the context of a suite of biogeochemical parameters along gradients of SGD to characterize fDOM composition and evaluate the utility of fDOM signatures in tracking groundwater dispersal and transformation. We spatially mapped water column chemistry in Maunalua Bay, O'ahu, Hawaiʻi by collecting 24 water samples in grids at each of two ~0.15 km 2 regions during both high and low tides over a two-day period. We observed clear horizontal gradients in the majority of 15 measured parameters, including inorganic and organic solutes and organic particles that tracked concentrations of conservative SGD tracers (radon, salinity and silicate). Multivariate scanning excitation-emission fluorometry successfully differentiated two distinct groundwater sources and delineated regions of SGD dispersion in each reef from the surrounding water column samples without detectable groundwater. Groundwater was consistently depleted in DOC and enriched in nutrients; although the two SGD sources varied widely in fDOM quantity and fluorophore proportions, indices of humification were consistently elevated in SGD at both sites. Our results provide a robust spectral characterization of fDOM in SGD-influenced coral reefs and indicate the potential for this rapid and cost-effective measurement technique to be useful in tracking SGD dispersal in nearshore ecosystems.

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“…Excitation emission matrix (EEM) spectroscopy combined with parallel factor (PARAFAC) analysis allows for the identification in the 3 CDOM pool not only of protein-like and humic-like substances, but also of PAH-like compounds. This technique therefore represents a cheap and fast alternative to the classical chemical analysis for the initial discrimination of oil types Ferretto et al, 2014;D'Sa et al, 2016). Only two papers report EEM+PARAFAC for the Mediterranean Sea; one is focused on the Marseille Bay affected by a municipal sewage effluent ; the other one on the Marmara Sea and Dardanelles Straits, in the North Aegean Sea ).…”

Section: Introductionmentioning

confidence: 98%

“…PAHs are photochemically reactive and have peculiar fluorescence properties, that make them part of both chromophoric DOM (CDOM) and fluorescent DOM (FDOM) (Christensen et al, 2005;Ferretto et al, 2014;Mendoza et al, 2013. CDOM is defined as the fraction of DOM capable of absorbing light at the visible and UV wavelengths, while FDOM is the fraction of CDOM capable of fluorescence.…”

Section: Introductionmentioning

confidence: 99%

Dissolved organic matter dynamics in surface waters affected by oil spill pollution: Results from the Serious Game exercise

Gonnelli

Galletti

Marchetti

et al. 2016

Deep Sea Research Part II: Topical Studies in Oceanography

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Identification and quantification of known polycyclic aromatic hydrocarbons and pesticides in complex mixtures using fluorescence excitation–emission matrices and parallel factor analysis

Cited by 103 publications

References 41 publications

Forward osmosis desalination of oil and gas wastewater: Impacts of membrane selection and operating conditions on process performance

Forward osmosis desalination of oil and gas wastewater: Impacts of membrane selection and operating conditions on process performance

Fluorescent dissolved organic matter as a multivariate biogeochemical tracer of submarine groundwater discharge in coral reef ecosystems

Dissolved organic matter dynamics in surface waters affected by oil spill pollution: Results from the Serious Game exercise

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