Electronic Resource
Fluorescence spectroscopy and parallel factor analysis as a dissolved organic monitoring tool to assess treatment performance in drinking water trains
| العنوان: | Fluorescence spectroscopy and parallel factor analysis as a dissolved organic monitoring tool to assess treatment performance in drinking water trains |
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| المؤلفون: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Química, Universitat Politècnica de Catalunya. SETRI - Grup de Tècniques de Separació i Tractament de Residus Industrials, Vera, M., Cruz, S., Boleda, M. R., Mesa, J., Martin Alonso, J., Casas, Sandra, Gibert Agulló, Oriol, Cortina Pallás, José Luis |
| بيانات النشر: | 2017-04-15 |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | Fluorescence excitation emission matrix (FEEM) spectroscopy was used to evaluate its applicability as a tool to track dissolved organic matter (DOM) in a drinking water treatment plant (DWTP) that incorporates a conventional line (consisting in ozonation and GAC filtration) and a membrane-based line (consisting in ultrafiltration, reverse osmosis and mineralization) working in parallel. Seven sampling points within the different process stages were characterized monthly during 2014. A global Parallel Factor Analysis (PARAFAC) was used to pull out underlying organic fractions from the fluorescence spectra. Accordingly a five components model was selected to describe the system and the pros and cons of the model were discussed by analysis of the residuals. Among the five fluorescent components, those associated to humic-like matter (C1, C3 and C4) showed a similar season variability in the river water feeding the DWTP (which resembled that of UV254 and TOC), whereas the two components associated to protein-like matter (C2 and C5) exhibited a different behavior. The maximum fluorescence intensity values (Fmax) were used to quantify DOM removals across the plant. Compared to the conventional line, water from the UF/RO membrane-based line showed between 6 and 14 times lower fluorescence intensity signal for the humic-like components and between 1 and 3 for the protein-like components as compared to the conventional line. The differences in DOM composition due to seasonal variations and along the treatment trains point out the suitability of using fluorescence measurements over other parameters such as UV254 as a monitoring tool to help optimize operation conditions of each treatment stage and improve produced water quality in a DWTP. Postprint (author's final draft) |
| مصطلحات الفهرس: | Àrees temàtiques de la UPC::Enginyeria química, Fluorescence spectroscopy, Seawater--Organic compound content, Water--Purification, Water treatment, Parallel factor analysis (PARAFAC), Reverse osmosis (RO), Ultrafiltration (UF), Dissolved organic matter (DOM), Espectroscòpia de fluorescència, Tractament d'aigua, Article |
| URL: | |
| الاتاحة: | Open access content. Open access content Open Access |
| ملاحظة: | 9 p. application/vnd.openxmlformats-officedocument.wordprocessingml.document English |
| Other Numbers: | HGF oai:upcommons.upc.edu:2117/104634 Vera, M., Cruz, S., Boleda, M. R., Mesa, J., Martin-Alonso, J., Casas, S., Gibert, O., Cortina, J. Fluorescence spectroscopy and parallel factor analysis as a dissolved organic monitoring tool to assess treatment performance in drinking water trains. "Science of the total environment", 15 Abril 2017, vol. 584-585, p. 1212-1220. 0048-9697 10.1016/j.scitotenv.2017.01.184 987889303 |
| المصدر المساهم: | UNIV POLITECNICA DE CATALUNYA From OAIster®, provided by the OCLC Cooperative. |
| رقم الانضمام: | edsoai.ocn987889303 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |