Model of Coliform Bacteria in Grand Traverse Bay
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Authors
Canale, Raymond P.
Issue Date
1973-11
Type
Technical Report
Language
en_US
Subject
Grand Traverse Bay , Boardman River , Michigan Water Resources Commission , Vol. 45, No. 11, November 1973
Alternative Title
Abstract
Statistical and preliminary deterministic
models for total coliform bacteria
in Grand Traverse Bay, Mich., have been
developed previously. This work was reported
in an earlier paper by Canale et al.1
This paper presented historical water quality
data that clearly demonstrated seasonal
as well as long-term changes in the bacterial
quality of the waters in the west arm of
the bay. These transient characteristics
were studied with statistical techniques
such as autoregression and multiple regression
analysis. In addition to time variations,
the data also portray a consistent
spatial distribution of total coliform as observed
at several beach sites on the southern
shore of the west arm of the bay. The
kinetic behavior of the death of total coliform
bacteria in the bay was delineated by
a correlation of experimental data collected
by a number of different workers. The dieaway
of coliform in the bay was approximated
by using first-order kinetic expressions,
with the reaction rate coefficient
being relatively independent of illumination,
pre-chlorination, and season of the
year. The reaction rate coefficient was
found to be dependent on incubation temperature,
with lower temperatures favoring
prolonged survival. Knowledge of the annual
temperature cycle in the bay waters
was used to calculate the reaction rate coefficient
as a function of the time of year.
Description
Partial OCR done. 15 pages total.
Citation
Publisher
Water Pollution Control Federation