Enhanced carbon capture biosorption through process manipulation
The feasibility of manipulating operating parameters, i.e. Food-to-microorganisms (F/M) ratio, SRT, and residual DO, to enhance biosorption performance was investigated. It was observed that lower F/M and longer SRT resulted in sludges which captured carbon mainly through carbon storage. Surface sor...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2015
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/106910 http://hdl.handle.net/10220/25207 |
| _version_ | 1826111609032933376 |
|---|---|
| author | Lim, Choon-Ping Zhang, Sheng Zhou, Yan Ng, Wun Jern |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Lim, Choon-Ping Zhang, Sheng Zhou, Yan Ng, Wun Jern |
| author_sort | Lim, Choon-Ping |
| collection | NTU |
| description | The feasibility of manipulating operating parameters, i.e. Food-to-microorganisms (F/M) ratio, SRT, and residual DO, to enhance biosorption performance was investigated. It was observed that lower F/M and longer SRT resulted in sludges which captured carbon mainly through carbon storage. Surface sorption, however, was the dominant mechanism for sludges grown under the higher DO condition. Generally, biosorption was optimal at pH 7. Sorption kinetic studies revealed that sludge cultivated under the low F/M ratio of 0.15 (Sludge S1) showed the best overall biosorption performance. Determination of calorific value revealed that Sludge S1 was able to capture energy as much as 0.9 kJ/g SS within 15 min contact time. About 66.3% of the overall biosorption capacity was attributed to carbon storage. Sludge S1 was able to accumulate organic substrate and stored this as polyhydroxyalkanoates (PHA). Culture-independent microbial community analysis through DGGE revealed the presence of strains capable of PHA-accumulation, e.g. Rhodobacter sp., and Thauera sp. While different dominating mechanisms resulted from different cultivation conditions, the best biosorption performance was significantly contributed by carbon storage activity. |
| first_indexed | 2024-10-01T02:53:33Z |
| format | Journal Article |
| id | ntu-10356/106910 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:53:33Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1069102020-09-26T21:58:02Z Enhanced carbon capture biosorption through process manipulation Lim, Choon-Ping Zhang, Sheng Zhou, Yan Ng, Wun Jern School of Civil and Environmental Engineering Nanyang Environment and Water Research Institute DRNTU::Science::Biological sciences::Biochemistry The feasibility of manipulating operating parameters, i.e. Food-to-microorganisms (F/M) ratio, SRT, and residual DO, to enhance biosorption performance was investigated. It was observed that lower F/M and longer SRT resulted in sludges which captured carbon mainly through carbon storage. Surface sorption, however, was the dominant mechanism for sludges grown under the higher DO condition. Generally, biosorption was optimal at pH 7. Sorption kinetic studies revealed that sludge cultivated under the low F/M ratio of 0.15 (Sludge S1) showed the best overall biosorption performance. Determination of calorific value revealed that Sludge S1 was able to capture energy as much as 0.9 kJ/g SS within 15 min contact time. About 66.3% of the overall biosorption capacity was attributed to carbon storage. Sludge S1 was able to accumulate organic substrate and stored this as polyhydroxyalkanoates (PHA). Culture-independent microbial community analysis through DGGE revealed the presence of strains capable of PHA-accumulation, e.g. Rhodobacter sp., and Thauera sp. While different dominating mechanisms resulted from different cultivation conditions, the best biosorption performance was significantly contributed by carbon storage activity. Accepted version 2015-03-10T01:42:18Z 2019-12-06T22:20:49Z 2015-03-10T01:42:18Z 2019-12-06T22:20:49Z 2014 2014 Journal Article Lim, C.-P., Zhang, S., Zhou, Y., & Ng, W. J. (2015). Enhanced carbon capture biosorption through process manipulation. Biochemical engineering journal, 93, 128-136. 1369-703X https://hdl.handle.net/10356/106910 http://hdl.handle.net/10220/25207 10.1016/j.bej.2014.10.003 en Biochemical engineering journal © 2014 Elsevier B.V. This is the author created version of a work that has been peer reviewed and accepted for publication by Biochemical Engineering Journal, Elsevier B.V. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.bej.2014.10.003]. 29 p. application/pdf |
| spellingShingle | DRNTU::Science::Biological sciences::Biochemistry Lim, Choon-Ping Zhang, Sheng Zhou, Yan Ng, Wun Jern Enhanced carbon capture biosorption through process manipulation |
| title | Enhanced carbon capture biosorption through process manipulation |
| title_full | Enhanced carbon capture biosorption through process manipulation |
| title_fullStr | Enhanced carbon capture biosorption through process manipulation |
| title_full_unstemmed | Enhanced carbon capture biosorption through process manipulation |
| title_short | Enhanced carbon capture biosorption through process manipulation |
| title_sort | enhanced carbon capture biosorption through process manipulation |
| topic | DRNTU::Science::Biological sciences::Biochemistry |
| url | https://hdl.handle.net/10356/106910 http://hdl.handle.net/10220/25207 |
| work_keys_str_mv | AT limchoonping enhancedcarboncapturebiosorptionthroughprocessmanipulation AT zhangsheng enhancedcarboncapturebiosorptionthroughprocessmanipulation AT zhouyan enhancedcarboncapturebiosorptionthroughprocessmanipulation AT ngwunjern enhancedcarboncapturebiosorptionthroughprocessmanipulation |