Academic Journal
Adapting direct filtration to increasing source water dissolved organic carbon using clarification and granular activated carbon
| العنوان: | Adapting direct filtration to increasing source water dissolved organic carbon using clarification and granular activated carbon |
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| المؤلفون: | Anderson, Lindsay E., Tchonlla, Manda, Earle, Martin, Swinamer, Ryan, Gagnon, Graham A. |
| المساهمون: | Natural Sciences and Engineering Research Council of Canada |
| المصدر: | AWWA Water Science ; volume 5, issue 5 ; ISSN 2577-8161 2577-8161 |
| بيانات النشر: | Wiley |
| سنة النشر: | 2023 |
| المجموعة: | Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: | Changing source water quality namely through increasing natural organic matter (NOM) concentration challenges surface water treatment, especially direct filtration. We conducted a pilot‐scale assessment of various adaptation strategies (e.g., clarification, granular activated carbon [GAC] filtration) for direct filtration facilities under the stress of rising NOM levels. Recognizing that changing source water can impact broader aspects of treatment, we considered the implications of Fe and Mn removal via KMnO 4 pre‐oxidation. GAC media showed promise as an adaptation strategy, providing ~60% removal of dissolved organic carbon (DOC), and a significant reduction in disinfection by‐product formation potential (DBPfp). However, KMnO 4 pretreatment showed limited Mn and Fe removal, and filters with GAC media released dissolved Mn at up to ~30% of prefilter levels. These data suggest that using GAC may come with the risk of poor Mn removal performance if Mn is not removed during pretreatment. This work highlights the complexities anticipated under emerging climate pressures and emphasizes the need for comprehensive treatment solutions that consider factors beyond NOM. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1002/aws2.1352 |
| الاتاحة: | http://dx.doi.org/10.1002/aws2.1352 https://awwa.onlinelibrary.wiley.com/doi/pdf/10.1002/aws2.1352 |
| Rights: | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| رقم الانضمام: | edsbas.60550AA5 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/aws2.1352 |
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