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題 名 | 電廠逆向再生水處理系統矽土及硫酸鈣沉澱現象之研究 |
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作 者 | 曹志明; 洪輝能; 陳茂景; | 書刊名 | 台電工程月刊 |
卷 期 | 544 1993.12[民82.12] |
頁 次 | 頁55-63 |
分類號 | 448.13 |
關鍵詞 | 離子交換樹脂; 還原(再生); 同向流; 逆向流; 洩漏; 流洗; Ion Exchange Resin; Regeneration; Cocurrent; Countercurrent; Leakage; Elution; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究利用離子交換樹脂性能試驗設備,以IR-143C和IRA-458二種樹脂 進行實驗,探討影響造水性能的矽土和硫酸鈣沈澱現象。過程中使用四種再生模 式進行探討,結果顯示,使用4硫酸以一段式逆向再生陽離子槽時,於槽中有大 量的硫酸鈣白色沈澱出現,解決方法為以低、高濃度二段還原劑注入或改用鹽酸 作為還原劑。因為於還原過程陰離子管柱中的pH值相當高,故於流洗液中未見 任何矽土膠凝。另由本文所提出的流洗液成分總量分析中,綜合研判可知還原過 程已將矽土全部交換出來。以同樣劑量注藥方法進行還原,逆向再生程序比同向 再生程序有著較佳的造水品質和較高的造水量,不論同向或逆向再生程序,以二 段式注藥的還原結果,皆比一段式為佳。 |
英文摘要 | This study utilizes ion exchange resin experimental equipment to explore silica and calcium sulfate precipitation, which affect the pro perties of water treatment. Four regeneration modes are tested with IR-143C and IRA-458 resins respectively. The tested results reveal that a large amount of white calcium sulfate precipitation is discovered,when one-step countercurrent regeneration is used with 4 sulfuricacid through cation columns.This problem could be solved, if two - stepregeneration procedure is used with stepwise concentrations or replacingsulfuric acid by hydrochloric acid. Because pH value of regenerationelution is quite high in anion column silica colloid is not discovered. It isknown that silica is all exchanged in regeneration process by amountanalysis of elution components in this study. Countercurrent regeneration is better in loading properties and obtains more exchange capacity of the resins than co -current regeneration for a givensame regeneration level. In spite of co-current or countercurrent.regeneration two-step regeneration effects are better than one-step:regeneration. |
本系統中英文摘要資訊取自各篇刊載內容。