期刊論文
| 學年 | 113 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2025-04-28 |
| 作品名稱 | Phosphorus Recovery by Activated Carbons (ACs) and Nano Iron Oxide/Activated Carbons (Fe3O4/AC) Composites in Flow-electrode Capacitive Deionization (FCDI) System |
| 作品名稱（其他語言） | |
| 著者 | Yi-Fang Chen; Ching-Yu Peng |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Journal of Applied Science and Engineering 29(2), p.381-391 |
| 摘要 | Phosphorus recovery is essential because phosphorus is a limited resource and excessive phosphorus concentration can adversely affect water quality. Flow-electrode capacitive deionization (FCDI), which employed activated carbons (ACs) or nano iron oxide/activated carbon (Fe_3O_4/AC) composites as flowable electrode materials, explored in this study has demonstrated effectively remove or recover sodium chloride or phosphorus. Characterization of flow-electrode materials and the effects of operation parameters, including phosphorus concentration, flow-electrode materials, applied voltage, and feasibility of reuse the recycled flow-electrode materials were thoroughly studied. As-prepared Fe_3O_4/AC composites were characterized as spherical magnetite nanoparticles with particle size of 200-400 nm . Our results showed that an optimal sodium chloride concentration of 20 g/L yielded the highest average salt removal rate (ASRR) of 9.94 × 10^(-4) mmol NaCl/min/cm^2 and a good charge efficiency of 72.36%. For phosphorus removal, at 1000 mg/L NaH_2PO_4, FCDI system with the ACs flow electrode can achieve the highest ASRR ( 8.12 × 10^(-5) mmol P/min/cm^2) , the highest charge efficiency ( 60.27% ), and the lowest energy consumption ( 192.11 kWh/mmol ). FCDI system with Fe_3O_4/AC composites as flow electrode material demonstrated better selectivity of phosphorus over sodium ( β_(P/Na) = 3.16) with higher charge efficiency and lower energy consumption, indicating its potential to sustainably remove or recover phosphorus. Recycled Fe_3O_4/AC composites showed its feasibility to be reused with comparable performance as that of original Fe_3O_4/AC composites. This study revealed that Fe_3O_4/AC composites can be potential flow-electrode materials for FCDI system to efficiently and sustainably remove or recover phosphorus from wastewater. |
| 關鍵字 | Flow-electrode Capacitive Deionization (FCDI); Activated Carbon; Fe3O4/AC composites; Phosphorus |
| 語言 | en |
| ISSN | 2708-9967; 2708-9975 |
| 期刊性質 | 國內 |
| 收錄於 | ESCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | TWN |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/129590 ) |