期刊論文
| 學年 | 93 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2004-12-01 |
| 作品名稱 | Treating High-Turbidity Water Using Full-Scale Floc Blanket Clarifiers |
| 作品名稱（其他語言） | |
| 著者 | W. W. Lin; S. S. Sung; L. C. Chen; H. Y. Chung; C. C. Wang; Wu, R. M.; D. J. Lee; C. Huang;R. S. Juang; X. F. Peng; H. L. Chang |
| 單位 | 淡江大學化學工程與材料工程學系 |
| 出版者 | American Society of Civil Engineers (ASCE) |
| 著錄名稱、卷期、頁數 | Journal of Environmental Engineering - ASCE 130, pp.1481-1487 |
| 摘要 | Dynamic responses of the blanket in full-scale flat-bottom type floc blanket clarifiers at the PingTsan Water Works, Taiwan Water Supply Corporation, were monitored given a step-change in coagulant (polyaluminum chloride, PACl) dosage. The blankets in the clarifiers were easily washed out using the conventional coagulation-clarification process (the “single-stage process”), seriously threatening drinking water quality. Consequently, the PingTsan Water Works included a pretreatment stage before the single-stage process to enhance treatment efficiency. The performance of this full-scale “two-stage process” for treating high-turbidity storm water was monitored on November 9 to 10, 2000. The two-stage process achieved a stable blanket and good quality clarified water that was insensitive to variation in raw water turbidity or PACl dose. Pilot tests were also conducted on October 6 to 7, 2001 to reveal performance differences between the single-stage and two-stage processes in dealing with high-turbidity water. The single-stage process yielded a blanket that was sensitive to PACl change. Not only was the produced blanket easily washed out when the PACl dose was step-decreased, it was also slow to recover when the chemical dosage was returned to its original value. The blanket yielded by the two-stage process was more robust to low coagulant dose, and recovered more easily when coagulant supply was increased. Applying the two-stage process to achieve the same effluent quality from single-stage process could significantly reduce total PACl dosage. |
| 關鍵字 | Water treatment; Taiwan, Water distribution;Flocculation; Potable water;Water quality |
| 語言 | en |
| ISSN | 0733-9372 |
| 期刊性質 | 國外 |
| 收錄於 | SCI EI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | |
| 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/987654321/88210 ) |