Laboratory Scale Investigations of Potential Odour Reduction Strategies in Biosolids
This study investigated sources of odours from biosolids produced from a Western Australian wastewater treatment plant and examined potential odour reduction strategies on a laboratory scale. Odour reduction methods that were trialled included chemical additions and reduction of centrifuge speed. Ch...
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| Format: | Journal Article |
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Cambridge Scientific Abstracts
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/41039 |
| _version_ | 1848756034198306816 |
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| author | Gruchlik, Yolanta Heitz, Anna Joll, Cynthia Driessen, Hanna Fouche, L. Penney, N. Charrois, Jeffrey |
| author_facet | Gruchlik, Yolanta Heitz, Anna Joll, Cynthia Driessen, Hanna Fouche, L. Penney, N. Charrois, Jeffrey |
| author_sort | Gruchlik, Yolanta |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study investigated sources of odours from biosolids produced from a Western Australian wastewater treatment plant and examined potential odour reduction strategies on a laboratory scale. Odour reduction methods that were trialled included chemical additions and reduction of centrifuge speed. Chemical addition trials were conducted by adding alum, polyaluminium chloride or ferric chloride to digested sludge that had been sampled prior to the dewatering stage. Trials of chemical addition (alum) to plant dewatered cake were also undertaken. The impact of reducing centrifuge speed on biosolids odour was also investigated using a laboratory scale centrifuge calibrated to operate such that the shear forces on the sample would, as closely as possible, represent those on the plant. To identify the odorous compounds present in biosolids and to assess the effectiveness of the odour reduction measures, headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry (HS SPME-GC-MS) methods were developed. Target odour compounds included volatile sulphur compounds (e.g. DMS, DMDS, DMTS) and other volatile organic compounds (toluene, thylbenzene, styrene, p-cresol, indole, skatole and geosmin). In our laboratory trials, aluminium sulphate added to digested sludge prior to dewatering offered the best odour reduction strategy among the options that were investigated, resulting in approximately 40% reduction in peak concentration of the total volatile organic sulphur compounds (TVOSC), relative to a control sample. |
| first_indexed | 2025-11-14T09:05:47Z |
| format | Journal Article |
| id | curtin-20.500.11937-41039 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:05:47Z |
| publishDate | 2012 |
| publisher | Cambridge Scientific Abstracts |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-410392017-01-30T14:47:41Z Laboratory Scale Investigations of Potential Odour Reduction Strategies in Biosolids Gruchlik, Yolanta Heitz, Anna Joll, Cynthia Driessen, Hanna Fouche, L. Penney, N. Charrois, Jeffrey odour reduction volatile sulphur compounds odorants sludge biosolids Odour This study investigated sources of odours from biosolids produced from a Western Australian wastewater treatment plant and examined potential odour reduction strategies on a laboratory scale. Odour reduction methods that were trialled included chemical additions and reduction of centrifuge speed. Chemical addition trials were conducted by adding alum, polyaluminium chloride or ferric chloride to digested sludge that had been sampled prior to the dewatering stage. Trials of chemical addition (alum) to plant dewatered cake were also undertaken. The impact of reducing centrifuge speed on biosolids odour was also investigated using a laboratory scale centrifuge calibrated to operate such that the shear forces on the sample would, as closely as possible, represent those on the plant. To identify the odorous compounds present in biosolids and to assess the effectiveness of the odour reduction measures, headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry (HS SPME-GC-MS) methods were developed. Target odour compounds included volatile sulphur compounds (e.g. DMS, DMDS, DMTS) and other volatile organic compounds (toluene, thylbenzene, styrene, p-cresol, indole, skatole and geosmin). In our laboratory trials, aluminium sulphate added to digested sludge prior to dewatering offered the best odour reduction strategy among the options that were investigated, resulting in approximately 40% reduction in peak concentration of the total volatile organic sulphur compounds (TVOSC), relative to a control sample. 2012 Journal Article http://hdl.handle.net/20.500.11937/41039 Cambridge Scientific Abstracts fulltext |
| spellingShingle | odour reduction volatile sulphur compounds odorants sludge biosolids Odour Gruchlik, Yolanta Heitz, Anna Joll, Cynthia Driessen, Hanna Fouche, L. Penney, N. Charrois, Jeffrey Laboratory Scale Investigations of Potential Odour Reduction Strategies in Biosolids |
| title | Laboratory Scale Investigations of Potential Odour Reduction Strategies in Biosolids |
| title_full | Laboratory Scale Investigations of Potential Odour Reduction Strategies in Biosolids |
| title_fullStr | Laboratory Scale Investigations of Potential Odour Reduction Strategies in Biosolids |
| title_full_unstemmed | Laboratory Scale Investigations of Potential Odour Reduction Strategies in Biosolids |
| title_short | Laboratory Scale Investigations of Potential Odour Reduction Strategies in Biosolids |
| title_sort | laboratory scale investigations of potential odour reduction strategies in biosolids |
| topic | odour reduction volatile sulphur compounds odorants sludge biosolids Odour |
| url | http://hdl.handle.net/20.500.11937/41039 |