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Date: Thu, 3 Jun 1999 08:47:38 -0700 (PDT)
From: Marcia Buck <mbuck@u.washington.edu>
To: Thesis Defense List <cegrads@u.washington.edu>, cjm@u.washington.edu,
        lnickens@u.washington.edu, eickhoff@u.washington.edu,
        faculty@ce.washington.edu
Subject: MSCE Defense - Cindy Callan - June 7, 1999
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The final examination for the MSCE degree for Cindy Callan will be held on
Monday, June 7, 1999 at 9:00 in 264 Wilcox Hall.

Biodegradation of Alpha-terpinene and Gamma-terpinene

Abstract
As a result of the EPA's Cluster Rules, the pulp and paper industry will
be required to implement new treatment technologies to reduce both air and
water discharges.  The new air standards require the reduction of sulfur
compounds, organic compounds and fine dust.  Many of the volatile organic
chemicals, including terpene compounds, are classified as hazardous air
pollutants (HAPs), and are present in high volume low-concentration gas
streams.  In most cases, the pulp and paper gas emission temperature will
be in the range of 50-60oC.

This research investigated important biodegradation kinetic parameters and
mass transfer coefficients for two terpene compounds, alpha-terpinene and
gamma-terpinene.  This information is useful for the design of a suspended
growth gas treatment biological reactor.  Individual bacteria enrichments
were developed at two elevated temperatures (35oC and 50oC) to degrade
alpha-terpinene and gamma-terpinene.  With the biodegradation and mass
transfer information, as well as Henry's coefficient test results, a
mechanistic model was used to design a shallow suspended growth reactor to
achieve the necessary performance criteria to meet the Cluster Rule
requirements.

Dr. H. David Stensel, Chair
Dr. Stuart Strand



.