A comprehensive analytical study of sludge from water reclamation plants in Singapore for advanced thermochemical conversion processes
Recently sludge attracted great attentions as a potential feedstock for advanced thermochemical conversion processes. Cheap heterogeneous waste mixtures could be converted into valuable products such as pyrolysis oil, synthetic gases and char. However thermal degradation behaviours of sludge were co...
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
2017
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| Online Access: | http://hdl.handle.net/10356/69581 |
| _version_ | 1826110336585957376 |
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| author | Chan, Wei Ping |
| author2 | Wang Jing-Yuan |
| author_facet | Wang Jing-Yuan Chan, Wei Ping |
| author_sort | Chan, Wei Ping |
| collection | NTU |
| description | Recently sludge attracted great attentions as a potential feedstock for advanced thermochemical conversion processes. Cheap heterogeneous waste mixtures could be converted into valuable products such as pyrolysis oil, synthetic gases and char. However thermal degradation behaviours of sludge were complex and distinctive therefore causing significant challenges in engineering design and system optimisation. In this study, sludge samples were collected based on type, plant, and batch categorisation from Water Reclamation Plants in Singapore. Existing and proposed analytical methods were applied. Synthetic sludge was formed based on compositions analytical procedure and simulation study developed to address issues in kinetics and conversion study. Qualitative similarities, quantitative variations, and correlations of thermochemical properties with compositions of sludge were identified. Oxidation of inorganics caused deviations on characterisation which could be reduced by alternative parameters and comparison bases proposed. Degradation behaviours of sludge were also found to be varied according to operating conditions and its intrinsic characteristics. |
| first_indexed | 2024-10-01T02:32:44Z |
| format | Thesis |
| id | ntu-10356/69581 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:32:44Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | ntu-10356/695812023-03-03T19:07:15Z A comprehensive analytical study of sludge from water reclamation plants in Singapore for advanced thermochemical conversion processes Chan, Wei Ping Wang Jing-Yuan School of Civil and Environmental Engineering Economic Development Board of Singapore, National Research Foundation Residues and Resource Reclamation Centre DRNTU::Engineering::Environmental engineering::Water treatment Recently sludge attracted great attentions as a potential feedstock for advanced thermochemical conversion processes. Cheap heterogeneous waste mixtures could be converted into valuable products such as pyrolysis oil, synthetic gases and char. However thermal degradation behaviours of sludge were complex and distinctive therefore causing significant challenges in engineering design and system optimisation. In this study, sludge samples were collected based on type, plant, and batch categorisation from Water Reclamation Plants in Singapore. Existing and proposed analytical methods were applied. Synthetic sludge was formed based on compositions analytical procedure and simulation study developed to address issues in kinetics and conversion study. Qualitative similarities, quantitative variations, and correlations of thermochemical properties with compositions of sludge were identified. Oxidation of inorganics caused deviations on characterisation which could be reduced by alternative parameters and comparison bases proposed. Degradation behaviours of sludge were also found to be varied according to operating conditions and its intrinsic characteristics. Doctor of Philosophy (CEE) 2017-02-23T01:34:41Z 2017-02-23T01:34:41Z 2017 Thesis Chan, W. P. (2017). A comprehensive analytical study of sludge from water reclamation plants in Singapore for advanced thermochemical conversion processes. Doctoral thesis, Nanyang Technological University, Singapore. http://hdl.handle.net/10356/69581 10.32657/10356/69581 en 292 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Environmental engineering::Water treatment Chan, Wei Ping A comprehensive analytical study of sludge from water reclamation plants in Singapore for advanced thermochemical conversion processes |
| title | A comprehensive analytical study of sludge from water reclamation plants in Singapore for advanced thermochemical conversion processes |
| title_full | A comprehensive analytical study of sludge from water reclamation plants in Singapore for advanced thermochemical conversion processes |
| title_fullStr | A comprehensive analytical study of sludge from water reclamation plants in Singapore for advanced thermochemical conversion processes |
| title_full_unstemmed | A comprehensive analytical study of sludge from water reclamation plants in Singapore for advanced thermochemical conversion processes |
| title_short | A comprehensive analytical study of sludge from water reclamation plants in Singapore for advanced thermochemical conversion processes |
| title_sort | comprehensive analytical study of sludge from water reclamation plants in singapore for advanced thermochemical conversion processes |
| topic | DRNTU::Engineering::Environmental engineering::Water treatment |
| url | http://hdl.handle.net/10356/69581 |
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