A study is made of the rate of oxidation of the nitrogenous material in water taken from the Cedar River above, within and below the city of Cedar Rapids. Some of the carbonaceous material is first oxidized, requiring all of the dissolved oxygen if the sample is highly polluted. If sufficient dissolved oxygen remains, the free ammonia is converted to nitrite form accompanied by a change of the organic nitrogen to ammonia. When nearly all the nitrogen is in nitrite form, further oxidation to nitrate nitrogen occurs.
Proceedings of the Iowa Academy of Science
©1931 Iowa Academy of Science, Inc.
Peterson, Ben H. and Hann, John
"The Oxidation of Nitrogenous Material in Contaminated River Water,"
Proceedings of the Iowa Academy of Science, 38(1), 165-165.
Available at: https://scholarworks.uni.edu/pias/vol38/iss1/23