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USING A BROADLY APPLICABLE GROWTH-PERCOLATION MODEL
TO DESIGN IMPROVED BIOFILTERS
by
Arash Bina
A Dissertation Presented to the
FACULTY OF THE GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirement for the Degree
DOCTOR OF PHILOSOPHY
ENVIRONMENTAL ENGINEERING
December 2006
Copyright 2006 Arash Bina
Object Description
| Title | Using a broadly applicable growth-percolation model to design improved biofilters |
| Author | Bina, Arash |
| Author email | bina@usc.edu |
| Degree | Doctor of Philosophy |
| Document type | Dissertation |
| Degree program | Environmental Engineering |
| School | Viterbi School of Engineering |
| Date defended/completed | 2006-10-23 |
| Date submitted | 2006 |
| Restricted until | Unrestricted |
| Date published | 2006-12-03 |
| Advisor (committee chair) | Devinny, Joseph S. |
| Advisor (committee member) | Henry, Ronald C. |
| Abstract | Two major problems encountered with biofiltration are clogging and the large size of the reactors. Clogging is the result of biomass accumulation that fills and blocks pores in the media. clogging may limit the lifetime of a biofilter. To reach a certain efficiency, a minimum empty bed residence time and thus biofilter size is required. However, most biofilters are designed by the rule of thumb. This suggests that a standard optimal design tool is needed.; In this study a previously developed biofilter model called growth-percolation model was refined and expanded. The model was then applied to several experiments performed by different investigators to show the broad capability of the model. It was found that fitting only one of the parameters of the model, the density of microorganisms in the biofilm, allowed description of different data sets, making it possible to use the model as a design tool.; Two novel biofilter media were suggested to improve an existing configurations. One utilized graded packing media and the other one used thin parallel plates instead of porous media. To test the efficiency of graded packing media, an experiment was performed to compare a graded packing biofilter and a uniform particle size biofilter. The biofilters in this experiment were designed using the model. The performance of the biofilters showed that the graded packing biofilter was superior in both efficiency and lifetime. The results demonstrated the capability of the model for designing better biofilters. |
| Keyword | biofiltration; modeling |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Type | texts |
| Legacy record ID | usctheses-m211 |
| Contributing entity | University of Southern California |
| Rights | Bina, Arash |
| Repository name | Libraries, University of Southern California |
| Repository address | Los Angeles, California |
| Repository email | http://www.usc.edu/isd/libraries/services/ask_a_librarian/email/ |
| Filename | etd-Bina-20061203 |
| Archival file | uscthesesreloadpub_Volume14/etd-Bina-20061203.pdf |
Description
| Title | Page 1 |
| Contributing entity | University of Southern California |
| Full text | USING A BROADLY APPLICABLE GROWTH-PERCOLATION MODEL TO DESIGN IMPROVED BIOFILTERS by Arash Bina A Dissertation Presented to the FACULTY OF THE GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirement for the Degree DOCTOR OF PHILOSOPHY ENVIRONMENTAL ENGINEERING December 2006 Copyright 2006 Arash Bina |
