Document Type

Thesis - Open Access

Award Date

1970

Degree Name

Master of Science (MS)

Department

Bacteriology

Abstract

The pollution of our limited natural resources, including surface waters, is a growing problem. The deterioration of the lakes and rivers is that is occurring is caused, in part, by the addition of organic material. One source of this organic pollution is the waste products of man and domestic animals, primarily in the form of fecal material. To control fecal pollution it is necessary to detect it. To detect such pollution quantitative methods are necessary. Methods for the detection of bacterial indicators endogenous to fecal material were developed for this purpose. Therefore, the purpose of this investigation is to determine and compare the survival of selected strains of the fecal coliforms and fecal streptococci in river water. Laboratory studies were conducted under controlled conditions of temperature, aeration, nitrogen etc., to determine the factors of major influence on the survival of fecal coliforms and fecal streptococci in river water. River studies were conducted, using an environmental chamber, to determine and compare the survival of fecal coliforms and fecal streptococci under more natural conditions. Correlation of data from laboratory and field studies were also made. It is the hope that this investigation will better define the value of fecal coliforms and fecal streptococci as indicators of fecal pollution in surface water resources.

Library of Congress Subject Headings

Streptococcus

Water -- pollution

South Dakota State University Theses

Format

application/pdf

Number of Pages

91

Publisher

South Dakota State University

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