2011.4-2012.3 Yearbook of NILIM
Research Summary
Water Quality Control Department
| Reference Number | Y110207 |
| Title | Operation and management standardization of membrane treatment technology in municipal wastewater treatment plants |
| Start-End Date | 2011.4-2012.3 |
| Division | Wastewater and Sludge Management Division |
| Author | Head, Masashi OGOSHI Researcher, Tsuyako FUJII Researcher, Shunsuke NISHIMURA |
| Summary | Membrane Bioreactor (MBR) is becoming an international standard in sewage treatment. It can remove most suspended solids and bacteria in wastewater and is easily implemented into existing facilities. However, during operation and maintenance, chemical cleaning is required to prevent membrane fouling. This temporarily reduces the water quality and consumes time and energy. In order to identify the best chemical process, this study analyzed the water quality and biological activity of a full scale MBR before and after different chemical cleaning processes. The results revealed that intermittent aeration during cleaning and partial cleaning of membrane units are needed. |