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Tracking seasonal changes of natural organic matter in a water treatmentplant in Bangkok using EEM-PARAFAC approach |
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| รหัสดีโอไอ | |
| Creator | 1. Kitiyot Tungsudjawong 2. Suchat Leungprasert 3. Panitan Jutaporn |
| Title | Tracking seasonal changes of natural organic matter in a water treatmentplant in Bangkok using EEM-PARAFAC approach |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2564 |
| Journal Title | Songklanakarin Journal of Science an Technology (SJST) |
| Journal Vol. | 43 |
| Journal No. | 5 |
| Page no. | 1244-1251 |
| Keyword | natural organic matter, fluorescence, ExcitationEmission Matrix, EEM, PARAFAC |
| URL Website | https://rdo.psu.ac.th/sjst/index.php |
| ISSN | 0125-3395 |
| Abstract | This study aims to evaluate spatial and seasonal changes in natural organic matter (NOM) in Bangkhen WaterTreatment Plant, Thailand. Water samples were analyzed for UV absorbance at 254 nm (UV254), dissolved organic carbon(DOC), and fluorescence excitation?emission matrix (EEM) with parallel factor analysis (PARAFAC). DOC concentrations ofthe raw water in wet and dry seasons were in the range of 4.01-5.75 and 2.34-4.97 mg-C/L, respectively. Fluorescence characterof the water samples could be represented by five PARAFAC components, including terrestrial humic-like (C1 and C2),microbial humic-like (C3), microbial protein-like (C4), and fulvic-like (C5) components. Component C2 significantly correlatedto DOC and UV254 (R2=0.73-0.88, p<0.01). Coagulation had preferential removal for humic-like materials (C1 and C2). Overall,the results demonstrate that tracking NOM using EEM was more sensitive than UV254 or DOC, which benefits WTP in term ofadjusting their processes for better water supply quality. |
