| EPSRC Reference: |
GR/J45350/01 |
| Title: |
OXYGENATOR FOR EFFLUENT TREATMENT USING A BUBBLE CLOUD IN DOWNFLOWING LIQUID |
| Principal Investigator: |
Rielly, Professor C |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Chemical Engineering and Biotechnology |
| Organisation: |
University of Cambridge |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 1993 |
Ends: |
30 September 1996 |
Value (£): |
131,189
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| EPSRC Research Topic Classifications: |
| Complex fluids & soft solids |
Multiphase Flow |
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Summary on Grant Application Form |
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The objective is to study the science of an invention for new Clean Technology to improve the efficiency of oxygen absorption for effluent treatment by aerobic degradation. The invention uses a plunging vertical jet entraining oxygen gas into the liquid; below the jet is a bubble cloud with downward liquid flow in a vertical tube. Calculations suggest that a moderate height of bubble cloud will give sufficient oxygen absorption for near saturation of the downflowing liquid. This liquid, containing dissolved oxygen, would support aerobic degradation and then recycle to the plunging jet.The project is to study the characteristics of the plunging jet/bubble cloud with regard to (i) fluid mechanics and (ii) oxygen absorption, by experiment and theory. The study would include the effect of dissolved gases (N2 and Co2) desorbing into the oxygen bubble cloud. The results would assist optimisation of the invention as the (1) recycle rate, (2) jet configuration and (3) operating pressure P of the plunging-jet/bubble cloud. It is anticipated that P = 1 to 3 bar abs will be advantageous. A deep shaft unit is proposed to raise P with minimum use of energy.
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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.cam.ac.uk |