A comparative evaluation of dried activated sludge and mixed dried activated sludge with rice husk silica to remove hydrogen sulfide.
The aim of this study was to investigate the effectiveness of dried activated sludge (DAS) and mixed dried activated sludge with rice husk silica (DAS & RHS) for removal of hydrogen sulfide (H2S). Two laboratory-scale filter columns (packed one litter) were operated. Both systems were operated u...
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| Format: | Article |
| Language: | English English |
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Tehran University of Medical Sciences
2013
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| Online Access: | http://psasir.upm.edu.my/id/eprint/28905/ http://psasir.upm.edu.my/id/eprint/28905/1/A%20comparative%20evaluation%20of%20dried%20activated%20sludge%20and%20mixed%20dried%20activated%20sludge%20with%20rice%20husk%20silica%20to%20remove%20hydrogen%20sulfide.pdf |
| _version_ | 1848846246082510848 |
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| author | Mehdinia, Seyed Mahmoud Abdul Latif, Puziah Taghipour, Hassan |
| author_facet | Mehdinia, Seyed Mahmoud Abdul Latif, Puziah Taghipour, Hassan |
| author_sort | Mehdinia, Seyed Mahmoud |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The aim of this study was to investigate the effectiveness of dried activated sludge (DAS) and mixed dried activated sludge with rice husk silica (DAS & RHS) for removal of hydrogen sulfide (H2S). Two laboratory-scale filter columns (packed one litter) were operated. Both systems were operated under different conditions of two parameters, namely different inlet gas concentrations and different inlet flow rates. The DAS & RHS packed filter showed more than 99.96% removal efficiency (RE) with empty bed residence time (EBRT) of 45 to 90 s and 300 mg/L inlet concentration of H2S. However, the RE decreased to 96.87% with the EBRT of 30 s. In the same condition, the DAS packed filter showed 99.37% RE. Nonetheless, the RE was shown to have dropped to 82.09% with the EBRT of 30 s. The maximum elimination capacity (EC) was obtained in the DAS & RHS packed filter up to 52.32 g/m3h, with the RE of 96.87% and H2S mass loading rate of 54 g/m3h. The maximum EC in the DAS packed filter was obtained up to 44.33 g/m3h with the RE of 82.09% and the H2S mass loading rate of 54 g/m3h. After 53 days of operating time and 54 g/m3h of loading rates, the maximum pressure drop reached to 3.0 and 8.0 (mm H2O) for the DAS & RHS packed and DAS packed filters, respectively. Based on the findings of this study, the DAS & RHS could be considered as a more suitable packing material to remove H2S. |
| first_indexed | 2025-11-15T08:59:39Z |
| format | Article |
| id | upm-28905 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T08:59:39Z |
| publishDate | 2013 |
| publisher | Tehran University of Medical Sciences |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-289052015-10-09T01:05:42Z http://psasir.upm.edu.my/id/eprint/28905/ A comparative evaluation of dried activated sludge and mixed dried activated sludge with rice husk silica to remove hydrogen sulfide. Mehdinia, Seyed Mahmoud Abdul Latif, Puziah Taghipour, Hassan The aim of this study was to investigate the effectiveness of dried activated sludge (DAS) and mixed dried activated sludge with rice husk silica (DAS & RHS) for removal of hydrogen sulfide (H2S). Two laboratory-scale filter columns (packed one litter) were operated. Both systems were operated under different conditions of two parameters, namely different inlet gas concentrations and different inlet flow rates. The DAS & RHS packed filter showed more than 99.96% removal efficiency (RE) with empty bed residence time (EBRT) of 45 to 90 s and 300 mg/L inlet concentration of H2S. However, the RE decreased to 96.87% with the EBRT of 30 s. In the same condition, the DAS packed filter showed 99.37% RE. Nonetheless, the RE was shown to have dropped to 82.09% with the EBRT of 30 s. The maximum elimination capacity (EC) was obtained in the DAS & RHS packed filter up to 52.32 g/m3h, with the RE of 96.87% and H2S mass loading rate of 54 g/m3h. The maximum EC in the DAS packed filter was obtained up to 44.33 g/m3h with the RE of 82.09% and the H2S mass loading rate of 54 g/m3h. After 53 days of operating time and 54 g/m3h of loading rates, the maximum pressure drop reached to 3.0 and 8.0 (mm H2O) for the DAS & RHS packed and DAS packed filters, respectively. Based on the findings of this study, the DAS & RHS could be considered as a more suitable packing material to remove H2S. Tehran University of Medical Sciences 2013 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/28905/1/A%20comparative%20evaluation%20of%20dried%20activated%20sludge%20and%20mixed%20dried%20activated%20sludge%20with%20rice%20husk%20silica%20to%20remove%20hydrogen%20sulfide.pdf Mehdinia, Seyed Mahmoud and Abdul Latif, Puziah and Taghipour, Hassan (2013) A comparative evaluation of dried activated sludge and mixed dried activated sludge with rice husk silica to remove hydrogen sulfide. Iranian Journal of Environmental Health Science & Engineering, 10 (22). pp. 1-7. ISSN 1735-1979; ESSN: 1735-2746 http://www.ijehse.com/content/10/1/22 10.1186/1735-2746-10-22 English |
| spellingShingle | Mehdinia, Seyed Mahmoud Abdul Latif, Puziah Taghipour, Hassan A comparative evaluation of dried activated sludge and mixed dried activated sludge with rice husk silica to remove hydrogen sulfide. |
| title | A comparative evaluation of dried activated sludge and mixed dried activated sludge with rice husk silica to remove hydrogen sulfide. |
| title_full | A comparative evaluation of dried activated sludge and mixed dried activated sludge with rice husk silica to remove hydrogen sulfide. |
| title_fullStr | A comparative evaluation of dried activated sludge and mixed dried activated sludge with rice husk silica to remove hydrogen sulfide. |
| title_full_unstemmed | A comparative evaluation of dried activated sludge and mixed dried activated sludge with rice husk silica to remove hydrogen sulfide. |
| title_short | A comparative evaluation of dried activated sludge and mixed dried activated sludge with rice husk silica to remove hydrogen sulfide. |
| title_sort | comparative evaluation of dried activated sludge and mixed dried activated sludge with rice husk silica to remove hydrogen sulfide. |
| url | http://psasir.upm.edu.my/id/eprint/28905/ http://psasir.upm.edu.my/id/eprint/28905/ http://psasir.upm.edu.my/id/eprint/28905/ http://psasir.upm.edu.my/id/eprint/28905/1/A%20comparative%20evaluation%20of%20dried%20activated%20sludge%20and%20mixed%20dried%20activated%20sludge%20with%20rice%20husk%20silica%20to%20remove%20hydrogen%20sulfide.pdf |