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Title: Structure of filter cakes
Authors: Smith, Ian
Issue Date: 1972
Publisher: © Ian Smith
Abstract: Cake filtration is an integral part of the processes of a whole range of industries from sewage treatment to pharmaceutical manufacture and it has been practised for many centuries by apothecaries and dye extractors. In common with many other unit operations involving particles or powders it has not been the subject of the kind of intensive research with which chemical engineers are familiar in the process dynamics field. It can be seen in the review of the literature that much of the work which has been done has been of an empirical nature and only in recent years has a more analytical approach to the investigations been adopted. It was as a result of the literature review that this research work began. It seemed quite clear that in order more fully to understand the phenomena related, not only to filter cakes, but also to the transmission of force and flow of fluid through fixed beds of particles some technique was needed to permit a microscopic examination of the interiors of these beds without disturbing their activity during the relevant operation. This, therefore, is a report on the development of one such technique which, it is hoped, will assist in a better understanding of packed bed phenomena. A wide range of filter cakes and wet and dry compacted beds has been investigated in order to test the efficacy of the technique. In this respect the results are not exhaustive but are indicative· of a general trend in the structure of the·various beds, particularly filter cakes. There is room for much more work to be done and some areas where it is felt advances can be made are indicated in a later section.
Description: A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.
URI: https://dspace.lboro.ac.uk/2134/13810
Appears in Collections:PhD Theses (Chemical Engineering)

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