| Author: | Zhu, Yu |
| Title: | A comparison study of the performance of commercial ultrafiltration and nanofiltration membranes for advanced wastewater treatment |
| Advisors: | Jiang, Yi (CEE) |
| Degree: | M.Sc. |
| Year: | 2020 |
| Subject: | Water reuse Sewage -- Purification Ultrafiltration Membrane separation Hong Kong Polytechnic University -- Dissertations |
| Department: | Department of Civil and Environmental Engineering |
| Pages: | 58 pages : color illustrations |
| Language: | English |
| Abstract: | Water scarcity is one of the most persuasive problems afflicting people all over the world. Membrane technologies which have been intensively investigated are becoming a crucial solution to address the water problems. Among all the membrane processes, ultrafiltration (UF) and nanofiltration (NF) can realize the reuse of wastewater for non-potable purposes such as toilet flushing and irrigation. Under this background, we used NF and UF membranes to treat the secondary effluent of Sha Tau Kok Sewage Treatment Works in Hong Kong. The water permeation and the rejection of various pollutants such as total organic carbon and suspended solid, by the two types of commercial membranes, were compared. Experiments demonstrated that nanofiltration membrane was more effective than ultrafiltration membrane in wastewater treatment. Taken together, we revealed the differences between nanofiltration membranes and ultrafiltration membranes in advanced wastewater treatment, as well as their respective advantages and disadvantages, and put forward the idea of optimizing the process of Sha Tau Kok Sewage Treatment Works. |
| Rights: | All rights reserved |
| Access: | restricted access |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 5366.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 8.14 MB | Adobe PDF | View/Open |
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