期刊論文
| 學年 | 115 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2026-09-22 |
| 作品名稱 | Ferric Phosphate Recovery From Acidic Semiconductor Wastewater via Acid-Induced ZVI Dissolution and Oxidative Precipitation |
| 作品名稱（其他語言） | |
| 著者 | Yu-Han Lin; Titima Wongphoom; Quyen Le Thuy; Chi-Wang Li; Jui-Shuan Yu; Nartsupang Chongcharoen; Pongsak Lek Noophan; Wei-Ting Kuo; Vinh Ya; Naresh Mameda |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Water Environment Research 98(9) |
| 摘要 | The semiconductor industry generates substantial volumes of acidic wastewater containing high phosphorus concentrations, necessitating effective treatment and a resource recovery strategy. This study proposes an integrated process for phosphorus recovery based on acid-induced dissolution of zero-valent iron (ZVI) coupled with oxidant-assisted ferric phosphate precipitation. Acidification significantly enhanced ferrous ions (Fe2+) release from ZVI, facilitating efficient phosphorus capture through subsequent oxidation and ferric phosphate formation. Complete phosphorus removal was achieved at an oxidant-to-Fe2+ molar ratio of 0.5 using either H2O2 or NaOCl. Oxidation–reduction potential (ORP) values of 500 mV for H2O2 and 1000 mV for NaOCl were established as critical setpoints for precise oxidant dosing and process control. Continuous-flow experiments demonstrated stable P-removal efficiency over a broad range of influent conditions while producing sludge with favorable setting characteristics. Furthermore, calcination transformed recovered amorphous ferric phosphate into crystalline strengite, highlighting its potential for beneficial reuse and resource recovery. Economic analysis revealed total chemical costs at 3.24 and 3.53 USD/kg-P for H2O2- and NaOCl-based systems, respectively. These findings demonstrate that the proposed ZVI approach provides a technically robust, economically attractive, and sustainable strategy for phosphorus recovery and recycling circularity in acidic semiconductor wastewater treatment. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 1554-7531 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/129935 ) |