Date of Award

Spring 1976

Degree Type

Thesis - Restricted

Degree Name

Master of Science (MS)


Civil and Environmental Engineering

First Advisor

Crandall, Clifford J.

Second Advisor

Zanoni, Alphonse E.


Greater attention has been concentrated on water quality in rivers and streams in recent years. Nitrogen plays an important role in river water quality and in river ecology. The oxidation of ammonia and organic nitrogen can affect the dissolved oxygen concentration in river systems,and nitrogen is often a limiting nutrient in a stream. The chemical transformations of nitrogen in river systems, however, are not quantitatively known. This study has tried to quantify the nitrification of ammonia as it takes place and to evaluate several models used to describe and predict nitrification in shallow streams. Factors which affect nitrification and the removal of ammonia and nitrogen by other processes are also discussed.



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