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A Multi-Criteria Decision-Making Approach to Evaluate Different $UVC/H_{2}O_{2}$ Systems in Wastewater Treatment
| Content Provider | MDPI |
|---|---|
| Author | Cunha, Isadora Luiza Climaco Vieira, Jose Geraldo Vidal Kulay, Luiz |
| Copyright Year | 2021 |
| Description | High azoxystrobin (AZO), difenoconazole (DFZ), and imidacloprid (IMD) pesticide removal rates in sixteen bench-scale experiments concerning tomato washing water treatment were obtained through a $UVC/H_{2}O_{2}$ advanced oxidative process. Experimental conditions $([H_{2}O_{2}]_{0}$) and irradiance $(E_{UVC}$) were optimized for higher degradation rates (pseudo-first-order reaction). To consider both economic aspects and environmental impacts when defining the treatment technology, as well as technological requirements, this study applied a multi-criteria decision-making method (MCDM) to assess and differentiate similar $UVC/H_{2}O_{2}$ process configurations. This allowed for the identification of the cheapest experimental arrangement with the lowest associated environmental impacts, coupled to the highest degradation rate $(k_{IMD}$). After consulting experts to determine the importance of the applied criteria and measuring alternative performances, experiment E7 $([H_{2}O_{2}]_{0}$ = 43.5 mg $L^{â1}$; $E_{UVC}$ = 15.0 W $m^{â2}$; $k_{IMD}$ = 0.236 $s^{â1}$) was determined as meeting the three criteria in a balanced manner. Although E7âēs technological performance regarding degradation rate did not achieve the best individual result, it presented the lowest impacts and costs among the analyzed series, although alternatives are sensitive to decision-maker priorities. This study considered different factors of a process displaying potential industrial applications still in the design stage to achieve a more efficient and balanced solution. |
| Starting Page | 2252 |
| e-ISSN | 22279717 |
| DOI | 10.3390/pr9122252 |
| Journal | Processes |
| Issue Number | 12 |
| Volume Number | 9 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-12-14 |
| Access Restriction | Open |
| Subject Keyword | Processes Water Science and Technology Uvc/h2o2 Pesticides Wastewater Treatment Multi-criteria Decision Making Life Cycle Assessment |
| Content Type | Text |
| Resource Type | Article |
