Effect of Radio-Frequency Treatment on the Changes of Dissolved Organic Matter in Rainwater
| Autor: | Ariadi Hazmi, Maulana Yusup Rosadi, Reni Desmiarti, Fusheng Li |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Water, Vol 14, Iss 111, p 111 (2022) Water; Volume 14; Issue 1; Pages: 111 |
| ISSN: | 2073-4441 |
| Popis: | Rainwater is a potential source of drinking water, but has various components of dissolved organic matter (DOM). DOM is a reservoir of potential hazards in drinking water. Therefore, a new method is required to purify rainwater as a drinking water source in terms of DOM aspects. A radio-frequency (RF) treatment system is introduced here to purify source water with a small possibility of contamination. RF is generated by applying a frequency of 1.5 MHz through a glass reactor with a diameter of 2 mm which is wrapped by a 2 mm copper wire. The results demonstrate that UV260 value and dissolved organic carbon (DOC) are reduced during RF treatment. DOC was reduced by a lower amount compared to UV260, suggesting the partial transformation of bio-refractory DOM. A fluorescence excitation-emission matrix showed that humic-like substances in rainwater were reduced faster than protein-like ones, indicating that humic-like substances are susceptible to reduction by RF treatment. The results offer information on the use of RF treatment in a rainwater purification process for the production of drinking water. |
| Databáze: | OpenAIRE |
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