| EPSRC Reference: |
GR/R52589/01 |
| Title: |
Odour Control by Activated Sludge Diffusion |
| Principal Investigator: |
Parsons, Professor S |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Sch of Industrial and Manufacturing Scie |
| Organisation: |
Cranfield University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
12 November 2001 |
Ends: |
11 November 2004 |
Value (£): |
179,879
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Summary on Grant Application Form |
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The proposed work aims to provide a fundamental understanding into the application of AS diffusion for odour control. The wider application of this technique over the last 30 years has been limited by the lack of experimental data on the effectiveness of the odour removal process, its effect on activated sludge and its subsequent impact on process performance. The research programme will undertake pilot-scale AS studies using known HZS concentrations and other odorous mixtures at operational works to investigate some of the practical issues in applying this technique for odour treatment. These studies will determine the removal efficiencies of odour diffusion and the effects on key sludge characteristics for a range of activated sludge types. Four pilot-scale AS reactors (60 L) will initially be used at the Cranfield University sewage works to study the effects of known HZS concentrations (5 and 50 mg/I) on removal efficiencies and process performance. Additional studies will include investigating the effects of HZS diffusion on AS biology and biokinetics and the fate of HZS sparged into the activated sludge, the organisms responsible and the types of mechanisms involved in AS HZS removal. Design criteria from the H2S studies will be used to develop a AS diffusion model for H2S removal. Further studies (using the same pilot-scale AS reactors) will be undertaken at operational works to compare and quantify the application of AS diffusion using known HZS concentrations and other odorous mixtures for different activated sludges. Olfactometry studies will also be used to investigate the capacity of activated sludge for odour removal in term of reasonable long-term loading rates. Design criteria will be developed for retrofitting existing sewage treatment works and for use in the design of new works.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.cranfield.ac.uk |