ERIC Number: ED162832
Record Type: RIE
Publication Date: 1978-Jan
Reference Count: 0
Land Application of Wastes: An Educational Program. Nitrogen Considerations - Module 15, Objectives, Script and Booklet.
Clarkson, W. W.; And Others
This module expands on the introductory discussion of nitrogen in other modules. The various chemical forms of nitrogen found in land treatment systems are defined. Inputs from waste application as well as natural sources are quantified for typical situations. A discussion of nitrogen transformations in the soil includes mineralization and immobilization processes (organic-inorganic transformations). The importance of carbon to nitrogen ratio of applied waste is emphasized in determining what reactions will occur in the soil. Possible losses and removals of nitrogen from a land treatment system are discussed. All of the above factors are combined into a mass balance in determining wastewater and sludge loadings, on a nitrogen basis, for typical situations. Data on nitrogen loadings and removals from various existing systems are summarized in the final section of the module. An illustration of short-term nitrogen loading calculation, using the decay series concept, is presented in the Appendix. (Author/BB)
Descriptors: Biology, Chemistry, Environment, Land Use, Learning Modules, Sanitation, Science Education, Soil Science, Waste Disposal, Wastes
Van Nostrand Reinhold, 450 West 33rd Street, New York, N.Y. 10001
Publication Type: Guides - General
Education Level: N/A
Sponsor: Corps of Engineers, Washington, DC.; Environmental Protection Agency, Washington, DC.
Authoring Institution: State Univ. of New York, Ithaca. Coll. of Agriculture and Life Sciences at Cornell Univ.
Note: For related documents, see SE 025 014-035; Not available in hard copy due to copyright restrictions; Contains occasional light and broken type