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Proceedings Paper

Novel sensing techniques for industrial scale bio-digesters
Author(s): Ilias Rallis; Anthony Deakin; J. W. Spencer; G. R. Jones
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Paper Abstract

The monitoring of a complex industrial scale process is a challenging task, particularly when such a process is a large (100m3) industrial organic waste anaerobic digestion (AD) system. This paper describes the deployment of fibre optic based sensors for monitoring an AD process. To enable this complex process to proceed, a number of critical conditions must be set (e.g. temperature, pH etc.).Two novel fibre optic sensors have been developed for monitoring temperature and pH. These operate in a zone zero environment (highly explosive) and need to withstand vibrations and microbial activity and to operate over extended periods of time (months) with no or little servicing.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.623494
Show Author Affiliations
Ilias Rallis, The Univ. of Liverpool (United Kingdom)
Anthony Deakin, The Univ. of Liverpool (United Kingdom)
J. W. Spencer, The Univ. of Liverpool (United Kingdom)
G. R. Jones, The Univ. of Liverpool (United Kingdom)


Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors

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