دورية أكاديمية
Evaluation of omphacite and iron-coated omphacite as a water filtration medium
| العنوان: | Evaluation of omphacite and iron-coated omphacite as a water filtration medium |
|---|---|
| المؤلفون: | Huifang Wu, Yu Jiang, Xiang Li, Jun Zhou, Xinyu Xu, Chengcheng Sun |
| المصدر: | Water Supply, Vol 22, Iss 1, Pp 1-13 (2022) |
| بيانات النشر: | IWA Publishing, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Water supply for domestic and industrial purposes LCC:River, lake, and water-supply engineering (General) |
| مصطلحات موضوعية: | backwash, dynamic filter, filtration, modified omphacite medium, Water supply for domestic and industrial purposes, TD201-500, River, lake, and water-supply engineering (General), TC401-506 |
| الوصف: | In this study, omphacite medium were modified by roasting at high temperature. The optimal preparation conditions were as follows: the pH value was 1, concentration of FeCl3 was 2 mol/L, roasting temperature was 450 °C and roasting time was 2 h. Specific surface area, scanning electron microscopy, and EDS analysis were used to compare the unmodified and modified omphacite, and a dynamic filtration experiment was performed to treat the slightly polluted water. The analysis of the characterization results revealed that the surface structure of the modified omphacite filter medium changed greatly. Its surface was rough and potholes increased, and the specific surface area and adsorption capacity were significantly increased. Results of the dynamic filtration experiment revealed that the average removal efficiencies of organic matter, TOC, and turbidity by quartz sand were 21.17%, 2.2%, and 94.5%. The average removal efficiencies of organic matter, TOC, and turbidity by unmodified omphacite were 23.46%, 26.7%, and 95.2%. The average removal efficiencies of organic matter, TOC, and turbidity by modified omphacite were 50.35%, 45.5%, and 96.3%. On the whole, the filtration performance of the modified omphacite filter column was the best among the three filter columns, and the recovery of the backwashing performance was also better. HIGHLIGHTS In this paper, the principle of good filtration performance of modified omphacite was studied comprehensively by combining characterization methods with dynamic filtration experiment.; The study of omphacite as water treatment filter medium in this paper is the intersection of mineral processing and environmental science.; The development of omphacite filtration technology can not only provide new market hot spots for minerals in the East China Sea area, but also has a very positive value for improving water treatment technology and enhancing water treatment efficiency.; |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1606-9749 1607-0798 |
| Relation: | http://ws.iwaponline.com/content/22/1/1; https://doaj.org/toc/1606-9749; https://doaj.org/toc/1607-0798 |
| DOI: | 10.2166/ws.2021.294 |
| URL الوصول: | https://doaj.org/article/4ddf86380e6c4c53b24b47ccfcf0f898 |
| رقم الأكسشن: | edsdoj.4ddf86380e6c4c53b24b47ccfcf0f898 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 16069749 16070798 |
|---|---|
| DOI: | 10.2166/ws.2021.294 |