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題名 | Salt Removal from Synthetic Process Solutions in Liquid Dye Production by Low-Pressure Nanofiltration=以低壓奈過濾自液態染料生產製程溶液中除鹽 |
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作者 | 林素霞; 蕭瑞昌; 林文琴; 莊瑞鑫; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷期 | 36:2 民94.03 |
頁次 | 頁127-134 |
分類號 | 465.3 |
關鍵詞 | 低壓奈過濾; 液態染料; 除鹽; Salt removal; Process solution; Liquid dyes; Low-pressure nanofiltration; |
語文 | 英文(English) |
中文摘要 | 本論文利用低壓奈過濾去除反應性液態染料(RB5)溶液中之鹽類(氯化鈉)並濃縮 RB5染料濃度。探討染料進料濃度(1-30 kg.m¯³)、鹽濃度(1-50 kg.m¯³)、溶液pH(5.0,10.5)及操作壓力(0.25-0.4 MPa)對體積通量(Flux)與鹽及染料截留率(Rejectin)之影響,由實驗顯示NaCl濃度對體積通量有重要之影響,染料之截留率隨著操作壓力與染料濃度減小而增加。但是,NaCl之截留率卻隨操作壓力、染料濃度與鹽濃度增加而上昇。除此之外,溶液pH在10.5時之染料與鹽截留率要比溶液在 pH5.0時來得大,在實驗操作的條件下,染料之截留率皆大於96.0%且NaCl之去除率也在87%以上。最後,鹽在低壓奈過濾操作之傳送參數亦被估計出並加以討論。 |
英文摘要 | The use of low-pressure nanofiltration (NF) for the removal of salt (NaCl) and concentrated dye (reactive dye 5, RB5) from synthetic process solutions employed in liquid dye production was examined. Effects of the feed dye concentration (1-30 kg.m¯³), salt concentration (1-50 kg.m¯³), solution pH (5.0, 10.5), pressure (0.25-0.4 MPa) applied on the flux, and the rejection of dye and salt were investigated. It was found that salt concentration had a significant effect on the flux. The rejection of dye increased when the applied pressure and feed dye concentration. However, the rejection of salt increased with increasing the applied pressure, the amount of feed dye, or the salt concentration increased. Moreover, the rejection of dye and salt from the solution at a pH of 10.5 was greater than that at a pH of 5. Under the conditions studied, the rejection of dye and the removal of salt were exceeded 96% and 87%, respectively. The transport parameters of salt in this low-pressure NF process were also evaluated and are discussed, here. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。