Relating freshwater organic matter fluorescence to organic carbon removal efficiency in drinking water treatment

Bieroza, Magdalena; Baker, Andy; Bridgeman, John

doi:10.1016/j.scitotenv.2008.11.013

Cited by 133 publications

(84 citation statements)

References 38 publications

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“…Prior to all laboratory analyses (fluorescence, TOC and UV) samples were stored cool and in the dark between three and seven days from collection. Storage test experiments were undertaken to demonstrate that degradation of water samples was insignificant under these storage conditions (Bieroza et al, 2009). In fluorescence EEM technique fluorescence intensity of water sample is scanned over the range of excitation and emission wavelengths to produce three-dimensional matrix (Fig.…”

Section: Methodsmentioning

confidence: 99%

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Fluorescence spectroscopy as a tool for determination of organic matter removal efficiency at water treatment works

Bieroza

Bridgeman

Baker

2010

Drink. Water Eng. Sci.

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Abstract. Organic matter (OM) in drinking water treatment is a common impediment responsible for increased coagulant and disinfectant dosages, formation of carcinogenic disinfection-by products, and microbial re-growth in distribution system. The inherent heterogeneity of OM implies the utilization of advanced analytical techniques for its characterization and assessment of removal efficiency. Here, the application of simple fluorescence excitation-emission technique to OM characterization in drinking water treatment is presented. The fluorescence data of raw and clarified water was obtained from 16 drinking water treatment works. The reduction in fulvic-like fluorescence was found to significantly correlate with OM removal measured with total organic carbon (TOC). Fluorescence properties, fulvic-and tryptophan-like regions, were found to discriminate OM fractions of different removal efficiencies. The results obtained in the study show that fluorescence spectroscopy provides a rapid and accurate characterization and quantification of OM fractions and indication of their treatability in conventional water treatment.

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Section: Methodsmentioning

confidence: 99%

“…Laboratory analytical methods have been presented in detail previously (Bieroza et al, 2009). In summary, fluorescence EEMs were collected using a Cary Eclipse Fluorescence Spectrophotometer (Varian, Surrey, UK) equipped with a Peltier temperature controller.…”

Section: Methodsmentioning

confidence: 99%

Fluorescence spectroscopy as a tool for determination of organic matter removal efficiency at water treatment works

Bieroza

Bridgeman

Baker

2010

Drink. Water Eng. Sci.

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“…The research applications of aquatic fluorescence tracking have also been extended to include drinking water sources [68]. Several fluorescence studies have recently been undertaken to investigate the performance of drinking water treatment processes and have been able to successfully detect membrane fouling events [109,110] as well as to quantify organic matter removal and efficiency [111][112][113][114]. This area has also seen the early development of a deep-UV LED and laser-induced fluorescence system for fluorescence detection of water-dissolved organic species, looking toward the real-time fluorescence monitoring of drinking water [115].…”

Section: Identification Of Contamination Using Fluorescence Fingerprimentioning

confidence: 99%

Cross-connection detection in Australian dual reticulation systems by monitoring inherent fluorescent organic matter

Hambly

Henderson

Baker

et al. 2012

Environmental Technology Reviews

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New housing developments are now commonly incorporating dual reticulation water systems for the redistribution of recycled water back to households for non-potable use. Within such distribution systems is the potential for cross-connections between recycled and drinking water pipelines, and a number of such events have been documented both in Australia and internationally. While many cross-connections are unlikely to present a source of health concern given the high level of recycled water treatment, they do have the potential to negatively impact public confidence in dual reticulation systems. A rapid and highly sensitive method of cross-connection detection is required to increase consumer confidence in the construction and maintenance of such recycled water distribution systems. This paper reviews a number of current and potential cross-connection detection methods, highlighting the use of fluorescence spectroscopy as a highly promising analytical tool for portable cross-connection detection.

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“…The Kolyma River flow through the forest showed higher DOC (CDOM) than that on dry land [20]. However, the study on head water streams draining agricultural and near-pristine catchments (forested and wetland) in the North German plains showed a high DOC on dry land [20].…”

Section: Analysis Of Cdom Spectral Characteristicsmentioning

confidence: 83%

Spatiotemporal Characterization of Chromophoric Dissolved Organic Matter (CDOM) and CDOM-DOC Relationships for Highly Polluted Rivers

Zhang

et al. 2016

Water

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Spectral characteristics of CDOM (Chromophoric dissolved organic matter) in water columns are a key parameter for bio-optical modeling. Knowledge of CDOM optical properties and spatial discrepancy based on the relationship between water quality and spectral parameters in the Yinma River watershed with in situ data collected from highly polluted waters are exhibited in this study. Based on the comprehensive index method, the riverine waters showed serious contamination; especially the chemical oxygen demand (COD), iron (Fe), manganese (Mn), mercury (Hg) and dissolved oxygen (DO) were out of range of the contamination warning. Dissolved organic carbon (DOC) and total suspended matter (TSM) with prominent non-homogenizing were significantly high in the riverine waters, but chlorophyll-a (Chl-a) was the opposite. The ternary phase diagram showed that non-algal particle absorption played an important role in total non-water light absorption (>50%) in most sampling locations, and mean contributions of CDOM were 13% and 22% in the summer and autumn, respectively. The analysis of the ratio of absorption at 250-365 nm (E 250:365 ) and the spectral slope (S 275-295 ) indicated that CDOM had higher aromaticity and molecular weight in autumn than in summer, which is consistent with the results of water quality and the CDOM relative contribution rate. Redundancy analysis (RDA) indicated that the environmental variables OSM (Organic suspended matter) had a strong correlation with CDOM absorption, followed by heavy metals, e.g., Mn, Hg and Cr 6+ . However, for the specific UV absorbance (SUVA 254 ), the seasonal values showed opposite results compared with the reported literature. The potential reasons were that more UDOM (uncolored dissolved organic matter) from human sources (wastewater effluent) existed in the waters. Terrigenous inputs simultaneously are in relation to the a CDOM (440)-DOC relationship with the correlation coefficient of 0.90 in the summer (two-tailed, p < 0.01), and 0.58 in the autumn (two-tailed, p < 0.05). Spatial distribution of the CDOM parameters exhibited that the downstream regions focused on dry land have high CDOM molecular weight and aromatic hydrocarbon. Partial sampling locations around the cities or countries generally showed abnormal values due to terrigenous inputs. As a bio-optical model parameter, the spectral characteristic of CDOM is helpful in adjusting the derived algorithms in highly polluted environments. The study on organic carbon and pollutants in highly polluted waters had an important contribution to global carbon balance estimation and water environment protection.

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Relating freshwater organic matter fluorescence to organic carbon removal efficiency in drinking water treatment

Cited by 133 publications

References 38 publications

Fluorescence spectroscopy as a tool for determination of organic matter removal efficiency at water treatment works

Fluorescence spectroscopy as a tool for determination of organic matter removal efficiency at water treatment works

Cross-connection detection in Australian dual reticulation systems by monitoring inherent fluorescent organic matter

Spatiotemporal Characterization of Chromophoric Dissolved Organic Matter (CDOM) and CDOM-DOC Relationships for Highly Polluted Rivers

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