Degradation of 2-Naphthalenesulfonate in Aqueous Solution by Hydrogen Peroxide in the Presence of Basic Oxygen Furnace Slag

利用轉爐石催化過氧化氫以分解水中2-Naphthalenesulfonate

邱求三(Chyow-San Chiou) ； 張瓊芬(Chiung-Fen Chang) ； 張慶源(Ching-Yuan Chang) ； 張章堂(Chang-Tang Chang) ； 李元陞(Yuan-Shan Li)

《Journal of the Chinese Institute of Chemical Engineers》 35卷4期 (2004/07) Pp. 417-424

https://doi.org/10.6967/JCICE.200407.0417

摘要

轉爐石(BOF slag)為煉鋼廠於煉鋼過程中所產生之廢棄物，其含有大量的FeO及Fe2O3可嚐試將其作為分解H2O2以啟動費頓反應的催化劑；2-Naphthalenesulfonate(2-NS) 為紡機工業及印刷電路板工業廢水中之有機污染物，其易溶於水但不易被傳統廢水之生物處理方法予以分解，所能2-NS的分解便需利用高級氧化程序：本研究嚐試利用轉爐石中的鐵來催化H2O2以產生氫氧自由基，再利用氫氧自由基的高氧化性來達到分解2-NS的目的，實驗結果顯示，溶液pH值小於3，較有利於2-NS之礦化，當轉爐石及H2O2添加量分別為15 g/L及700 mg/L時，可得到較佳之2-NS礦化效率。

並列摘要

Basic oxygen furnace slag (BOF slag) is a final waste in the steel making process, which contains 12.5 and 4.5 wt% of FeO and Fe2O3, respectively. The abundant iron-containing property of BOF slag makes it a possible catalyst for Fenton’s reactions. This study evaluated the performance of H2O2 with BOF slag denoted as H2O2/BOF slag process to degrade 2-naphthalenesulfonate (2-NS). The concentration of total organic carbon (TOC) was chosen as a mineralization index of the degradation of 2-NS by the H2O2/BOF slag process. The experimental results revealed that the adequate pH values for better mineralization of 2-NS were found to be below 3. An optimum mineralization efficiency of 2-NS was evaluated as the BOF slag loading and the initial concentration of H2O2 were 15g/L and 700mg/L, respectively.

並列關鍵字

Basic oxygen furnace slag ； Fenton's reaction ； 2-Naphthalenesulfonate,Mineralization