1 AIT Asian Institute of Technology

Transition behaviour of deep bed filtration : model and experiments

AuthorTulachan, Ravi Kumar
Call NumberAIT Thesis no. EV-87-15
Subject(s)Filters and filtration--Mathematical models
NoteA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Technology
PublisherAsian Institute of Technology
AbstractIn this study, prediction of filter efficiency was studied using modified O'Melia-Ali's model. The model used in the present study for the entire cycle of filtration was developed theoretically assuming an analogy between the filtration and adsorption. The effect of variation of filtration rate, particle size of suspension and filter grain size were studied experimentally using a laboratory-scale filter set-up. Latex suspension and a glass bead medium of known sizes were used in this study. The model parameters calculated using the experimental results were found to follow a uniform trend with the operating parameters. An empirical relationship between model parameter and operating parameters were formulated. Once this kind of empirical relationship is formulated from a limited number of experiments, it can be used to simulate the filter performance at any other operating parameters of the given system. This will be useful in the rational design of filter and upgrading the performance of existing filters as well. The clean bed filter efficiency calculated from experimental results were found to be close to Happel's and Rajagopalan-Tien's model.
Year1987
TypeThesis
SchoolSchool of Environment, Resources, and Development (SERD)
DepartmentOther Field of Studies (No Department)
Academic Program/FoSEnvironmental Engineering and Management (EV)
Chairperson(s)Vigneswaran, Saravanamuthu
Examination Committee(s)Orth, Hermann M. ;Huynh, Ngoc Phien
Scholarship Donor(s)The Royal Danish Government
DegreeThesis (M.Eng.) - Asian Institute of Technology, 1987


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