頁籤選單縮合
題名 | 廢光碟回收廠清洗液中銀、鋁金屬去除之研究=Removal of Silver and Aluminum from the Washing Liquid at a Scrap Compact Disk Recycling Plant |
---|---|
作者姓名(中文) | 李清華; 吳彥翬; 郭碧芳; 柯秀靜; 樊國恕; 莊連豪; 潘思溫; | 書刊名 | 科學與工程技術期刊 |
卷期 | 5:4 2009.12[民98.12] |
頁次 | 頁77-83 |
分類號 | 445.46 |
關鍵詞 | 光碟; 回收; 再生; Compact disk; Recovery; Recycling; |
語文 | 中文(Chinese) |
中文摘要 | 本研究主要是針對國內某廢光碟回收處理廠於回收廢光碟片所產生之清洗廢液,來進行廢 液中銀、鋁金屬之回收去除工作,本研究所採取之方法包括廢液中銀、鋁金屬之電解回收去除 及氯化鈉、氯化鈣、硫化鈉、鹽酸之沉澱回收去除。根據本研究之結果顯示,該廢光碟回收處 理廠之清洗廢液所含銀、鋁金屬含量不高,其銀含量僅3 ppm 而鋁含量則為6 ppm 左右,因此 不具回收價值,另本研究結果顯示當以電解法及氯化鈉、氯化鈣、硫化鈉等沉澱法並無法有效 去除廢液中之銀、鋁金屬,而當使用鹽酸來調整該廠清洗廢液之pH 至7 時,則有效達成99.77% 之銀及89.41% 之鋁之沉澱去除率。 |
英文摘要 | The main purpose of this study was to recover the silver and aluminum metals contained in the washing liquid generated at a scrap compact disk recycling plant. Thus, various methods of electric winning, as well as precipitation by NaCl, CaCl, NaS, and HCl, were adopted to recover these two metals from the collected washing liquid. The results revealed that the liquid had concentrations of 3 ppm of silver and 6 ppm of aluminum; therefore, due to such low concentrations, recovery of either of these metals would not be economical. It was also demonstrated that neither the electric winning methods nor precipitation by NaCl, CaCl and NaS can effectively remove the silver and aluminum from the washing liquid. However, the 99.77% silver and 89.41% aluminum contained therein could be removed by using the HCl to adjust the pH to 7. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。