Assessment of drinking water quality at the tap using fluorescence spectroscopy
| Autor: | Masoumeh Heibati, Karolina Stenroth, Colin A. Stedmon, Sebastien Rauch, Jonas Toljander, Melle Säve-Söderbergh, Kathleen R. Murphy |
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| Rok vydání: | 2017 |
| Předmět: |
Environmental Engineering
0208 environmental biotechnology 02 engineering and technology 010501 environmental sciences 01 natural sciences PARAFAC Fluorescence spectroscopy Fluorescence Soil Water Quality Dissolved organic carbon Drinking water distribution Waste Management and Disposal Humic Substances 0105 earth and related environmental sciences Water Science and Technology Civil and Structural Engineering Indicator organism Natural organic matter (NOM) Sewage Chemistry Ecological Modeling Drinking Water Contamination Pollution 020801 environmental engineering Colored dissolved organic matter Infiltration (hydrology) Spectrometry Fluorescence Environmental chemistry Soil water CDOM Water quality Water Microbiology Copper Water Pollutants Chemical |
| Zdroj: | Heibati, M, Stedmon, C A, Stenroth, K, Rauch, S, Toljander, J, Säve-Söderbergh, M & Murphy, K R 2017, ' Assessment of drinking water quality at the tap using fluorescence spectroscopy ', Water Research, vol. 125, pp. 1-10 . https://doi.org/10.1016/j.watres.2017.08.020 |
| ISSN: | 1879-2448 |
| DOI: | 10.1016/j.watres.2017.08.020 |
| Popis: | Treated drinking water may become contaminated while travelling in the distribution system on the way to consumers. Elevated dissolved organic matter (DOM) at the tap relative to the water leaving the treatment plant is a potential indicator of contamination, and can be measured sensitively, inexpensively and potentially on-line via fluorescence and absorbance spectroscopy. Detecting elevated DOM requires potential contamination events to be distinguished from natural fluctuations in the system, but how much natural variation to expect in a stable distribution system is unknown. In this study, relationships between DOM optical properties, microbial indicator organisms and trace elements were investigated for households connected to a biologically-stable drinking water distribution system. Across the network, humic-like fluorescence intensities showed limited variation (RSD = 3.5-4.4%), with half of measured variation explained by interactions with copper. After accounting for quenching by copper, fluorescence provided a very stable background signal (RSD |
| Databáze: | OpenAIRE |
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