NOB suppression in pilot-scale mainstream nitritation-denitritation system coupled with MBR for municipal wastewater treatment
The high energy consumption associated with biological treatment of municipal wastewater is posing a serious impact and challenge on the current global wastewater industry and is also inevitably linked to the issue of global climate change. To tackle such an emerging situation, this study aimed to d...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/139931 |
| _version_ | 1826122467840622592 |
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| author | Wang, Han Xu, Guangjing Qiu, Zheng Zhou, Yan Liu, Yu |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Wang, Han Xu, Guangjing Qiu, Zheng Zhou, Yan Liu, Yu |
| author_sort | Wang, Han |
| collection | NTU |
| description | The high energy consumption associated with biological treatment of municipal wastewater is posing a serious impact and challenge on the current global wastewater industry and is also inevitably linked to the issue of global climate change. To tackle such an emerging situation, this study aimed to develop strategies to effectively suppress nitrite oxidizing bacteria (NOB) in pilot-scale mainstream nitritation-denitritation system coupled with MBR for municipal wastewater treatment. The results showed that stable nitrite shunt was achieved, while more than 90% of COD and NH4+-N removal were obtained via nitritation-denitritation in the pilot plant fed with real municipal wastewater. Through adjusting aeration intensity in MBR in combination with the integrated control of dissolved oxygen (DO), sludge retention time (SRT) and sludge return ratio, NOB was successfully suppressed with a nitrite accumulation rate (NAR) of more than 80%. |
| first_indexed | 2024-10-01T05:48:39Z |
| format | Journal Article |
| id | ntu-10356/139931 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:48:39Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1399312020-05-22T08:59:49Z NOB suppression in pilot-scale mainstream nitritation-denitritation system coupled with MBR for municipal wastewater treatment Wang, Han Xu, Guangjing Qiu, Zheng Zhou, Yan Liu, Yu School of Civil and Environmental Engineering Nanyang Environment and Water Research Institute Engineering::Civil engineering NOB Suppression Mainstream Nitritation-denitritation The high energy consumption associated with biological treatment of municipal wastewater is posing a serious impact and challenge on the current global wastewater industry and is also inevitably linked to the issue of global climate change. To tackle such an emerging situation, this study aimed to develop strategies to effectively suppress nitrite oxidizing bacteria (NOB) in pilot-scale mainstream nitritation-denitritation system coupled with MBR for municipal wastewater treatment. The results showed that stable nitrite shunt was achieved, while more than 90% of COD and NH4+-N removal were obtained via nitritation-denitritation in the pilot plant fed with real municipal wastewater. Through adjusting aeration intensity in MBR in combination with the integrated control of dissolved oxygen (DO), sludge retention time (SRT) and sludge return ratio, NOB was successfully suppressed with a nitrite accumulation rate (NAR) of more than 80%. 2020-05-22T08:59:49Z 2020-05-22T08:59:49Z 2019 Journal Article Wang, H., Xu, G., Qiu, Z., Zhou, Y., & Liu, Y. (2019). NOB suppression in pilot-scale mainstream nitritation-denitritation system coupled with MBR for municipal wastewater treatment. Chemosphere, 216, 633-639. doi:10.1016/j.chemosphere.2018.10.187 0045-6535 https://hdl.handle.net/10356/139931 10.1016/j.chemosphere.2018.10.187 30391884 2-s2.0-85056745553 216 633 639 en Chemosphere © 2018 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Civil engineering NOB Suppression Mainstream Nitritation-denitritation Wang, Han Xu, Guangjing Qiu, Zheng Zhou, Yan Liu, Yu NOB suppression in pilot-scale mainstream nitritation-denitritation system coupled with MBR for municipal wastewater treatment |
| title | NOB suppression in pilot-scale mainstream nitritation-denitritation system coupled with MBR for municipal wastewater treatment |
| title_full | NOB suppression in pilot-scale mainstream nitritation-denitritation system coupled with MBR for municipal wastewater treatment |
| title_fullStr | NOB suppression in pilot-scale mainstream nitritation-denitritation system coupled with MBR for municipal wastewater treatment |
| title_full_unstemmed | NOB suppression in pilot-scale mainstream nitritation-denitritation system coupled with MBR for municipal wastewater treatment |
| title_short | NOB suppression in pilot-scale mainstream nitritation-denitritation system coupled with MBR for municipal wastewater treatment |
| title_sort | nob suppression in pilot scale mainstream nitritation denitritation system coupled with mbr for municipal wastewater treatment |
| topic | Engineering::Civil engineering NOB Suppression Mainstream Nitritation-denitritation |
| url | https://hdl.handle.net/10356/139931 |
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