Hydraulic performance of a proposed in-situ photocatalytic reactor for degradation of MTBE in water
Methyl tert-butyl ether (MTBE) groundwater remediation projects often require a combination of technologies resulting in increasing the project costs. A cost-effective in situ photocatalytic reactor design, Honeycomb II, is proposed and tested for its efficiency in MTBE degradation at various flows....
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| Format: | Article |
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Elsevier Ltd
2010
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| Online Access: | http://ir.unimas.my/id/eprint/3012/ |
| _version_ | 1848835124145160192 |
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| author | Lik, Leonard Pueh Lim Lynch, Rod |
| author_facet | Lik, Leonard Pueh Lim Lynch, Rod |
| author_sort | Lik, Leonard Pueh Lim |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | Methyl tert-butyl ether (MTBE) groundwater remediation projects often require a combination of technologies resulting in increasing the project costs. A cost-effective in situ photocatalytic reactor design, Honeycomb II, is proposed and tested for its efficiency in MTBE degradation at various flows. This study is an intermediate phase of the research in developing an in situ photocatalytic reactor for groundwater remediation. It examines the effect of the operating variables: air and water flow and double passages through Honeycomb II, on the MTBE removal. MTBE vaporisation is affected by not only temperature, Henry’s law constant and air flow to volume ratio but also reactor geometry. The column reactor achieved more than 84% MTBE removal after 8 h at flows equivalent to horizontal groundwater velocities slower than 21.2 cm d−1. Despite the contrasting properties between a photocatalytic indicator methylene blue and MTBE, the reactor efficiency in degrading both compounds showed similar responses towards flow (equivalent groundwater velocity and hydraulic residence time (HRT)). The critical HRT for both compounds was approximately 1 d, which corresponded to a velocity of 21.2 cm d−1. A double pass through both new and used catalysts achieved more than 95% MTBE removal after two passes in 48 h. It also verified that the removal efficiency can be estimated via the sequential order of the removal efficiency of one pass obtained in the laboratory. This study reinforces the potential of this reactor design for in situ groundwater remediation. |
| first_indexed | 2025-11-15T06:02:53Z |
| format | Article |
| id | unimas-3012 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| last_indexed | 2025-11-15T06:02:53Z |
| publishDate | 2010 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-30122015-03-23T07:21:47Z http://ir.unimas.my/id/eprint/3012/ Hydraulic performance of a proposed in-situ photocatalytic reactor for degradation of MTBE in water Lik, Leonard Pueh Lim Lynch, Rod TC Hydraulic engineering. Ocean engineering Methyl tert-butyl ether (MTBE) groundwater remediation projects often require a combination of technologies resulting in increasing the project costs. A cost-effective in situ photocatalytic reactor design, Honeycomb II, is proposed and tested for its efficiency in MTBE degradation at various flows. This study is an intermediate phase of the research in developing an in situ photocatalytic reactor for groundwater remediation. It examines the effect of the operating variables: air and water flow and double passages through Honeycomb II, on the MTBE removal. MTBE vaporisation is affected by not only temperature, Henry’s law constant and air flow to volume ratio but also reactor geometry. The column reactor achieved more than 84% MTBE removal after 8 h at flows equivalent to horizontal groundwater velocities slower than 21.2 cm d−1. Despite the contrasting properties between a photocatalytic indicator methylene blue and MTBE, the reactor efficiency in degrading both compounds showed similar responses towards flow (equivalent groundwater velocity and hydraulic residence time (HRT)). The critical HRT for both compounds was approximately 1 d, which corresponded to a velocity of 21.2 cm d−1. A double pass through both new and used catalysts achieved more than 95% MTBE removal after two passes in 48 h. It also verified that the removal efficiency can be estimated via the sequential order of the removal efficiency of one pass obtained in the laboratory. This study reinforces the potential of this reactor design for in situ groundwater remediation. Elsevier Ltd 2010 Article NonPeerReviewed Lik, Leonard Pueh Lim and Lynch, Rod (2010) Hydraulic performance of a proposed in-situ photocatalytic reactor for degradation of MTBE in water. Chemosphere, 82 (4). http://www.sciencedirect.com/science/article/pii/S004565351001194X |
| spellingShingle | TC Hydraulic engineering. Ocean engineering Lik, Leonard Pueh Lim Lynch, Rod Hydraulic performance of a proposed in-situ photocatalytic reactor for degradation of MTBE in water |
| title | Hydraulic performance of a proposed in-situ photocatalytic reactor for degradation of MTBE in water |
| title_full | Hydraulic performance of a proposed in-situ photocatalytic reactor for degradation of MTBE in water |
| title_fullStr | Hydraulic performance of a proposed in-situ photocatalytic reactor for degradation of MTBE in water |
| title_full_unstemmed | Hydraulic performance of a proposed in-situ photocatalytic reactor for degradation of MTBE in water |
| title_short | Hydraulic performance of a proposed in-situ photocatalytic reactor for degradation of MTBE in water |
| title_sort | hydraulic performance of a proposed in-situ photocatalytic reactor for degradation of mtbe in water |
| topic | TC Hydraulic engineering. Ocean engineering |
| url | http://ir.unimas.my/id/eprint/3012/ http://ir.unimas.my/id/eprint/3012/ |