An Application Of Ultrafiltration Combined Powder Activated Carbon Process In Water Treatment

• Main Authors: Wai-Shan Chou, 周瑋珊
• Other Authors: Tien-Chin Chang
• Format: Others
• Language: zh-TW
• Published: 2001
• Online Access: http://ndltd.ncl.edu.tw/handle/28167455802519206580

碩士 === 國立臺北科技大學 === 土木與防災技術研究所 === 89 === Both the PAC/UF and single UF process were operated simultaneously. This study which focus on the removal efficiency of natural organic matters (NOMS) and detection membrane resistance during pilot plant treatment via PAC process sequenced by Ultrafiltration process as well as provide an evaluation of the applicability of this PAC/UF process in a full-scale plant. In the pilot plant study conducted on finished water in Liu-Du water treatment plant, very low turbidity levels were obtained with polyurethane hollow-fiber membrane. The turbidity of the permeate reached levels as low as 0.1NTU. A 99 percent reduction in turbidity was achieved in advanced water treatment process in this study. Nevertheless, UF membrane were slight useful in reducing Alkalinity, Conductivity and TDS in the same water tested. During this pilot plant study, PAC/UF process has demonstrated a higher efficiency in the reduction of TOC and UV254 as compared to other process such as conventional water treatment and single UF process. The result indicated that PAC/UF process could reduce 63% TOC of raw water and 50% reduction in UV254 was achieved. Meanwhile, the PAC/UF process did enhance species concentrations removal efficiency when PAC dosing was 20mg/L. On the other hand, this pilot plant practice has shown PAC/UF process is quite capable of eliminating bacterial and viral concentrations in the permeate.