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Item Information   Holdings       More by this author     Maier, Frank B.     Subjects     Water -- Aeration     Sewage -- Purification -- Aeration     MSEV Project.     Browse Catalog     by author:      Maier, Frank B.       by title:      Nitrogen Gas as an A...         MARC Display

Nitrogen Gas as an Alternative to the Deoxygenation Agent Sodium Sulfite / prepared by Frank B. Maier. by Maier, Frank B. Subjects Water -- Aeration   Sewage -- Purification -- Aeration   MSEV Project. Description:  139 leaves : ill. ; 28 cm. Contents:  Advisor: Dr. Francis Mahuta Committee members: Dr. Deborah Jackman, Dr. Carol Diggelman Introduction -- Literature review -- Domestic wastewater treatment -- SANITAIRETM fine bubble aeration systems -- OTE Testing of SANITAIRETM Diffusers -- Nitrogen Gas as the Alternative Deoxygenation Method -- Test Facility Discharge -- Materials and methods -- Why a small-scale test? -- Small-scale test details -- Small-scale test procedure -- Results and discussion -- Small-scale test results -- Cost analysis -- Sodium sulfite expenses -- Liquid nitrogen -- Nitrogen generation -- Cost analysis summary -- Conclusions and recommendations -- Report conclusions -- Recommendations for future work -- References -- Appendix. The primary objective of this investigation is to evaluate the use of nitrogen gas as the deoxygenation agent in place of sodium sulfite in the oxygen transfer effieciency testing of fine bubble diffusers. The evaluation of nitrogen gas is based on its deoxygenation ability, as well as its potential economic benefits, when compared to the current use of sodium sulfite. The use of nitrogen would also eliminate the need for using sodium sulfite and cobalt chloride as deoxygenation chemicals, both of which are currently used in oxygen transfer efficiency testing. A 500-gallon pilot test tank was used to compare the deoxygenation and oxygen transfer test results of both sodium sulfite and nitrogen gas. The data gathered as a result of this comparison showed that nitrogen gas can deoxygenate the test water to the same levels as sodium sulfite without any effect on the subsequent oxygen transfer efficiency values. An economic analysis of nitrogen gas compared a liquid nitrogen storage system and a nitrogen generation system to the sodium sulfite. Both systems produced annual cost savings over the use of sodium sulfite; however, the liquid nitrogen system established itself as the more economically attractive option and yielded the largest annual operational savings.   Copy/Holding information Location Collection Call No. Status   Walter Schroeder Library Master's Theses AC805 .M10 1999 Available Add Copy to MyList Format: HTMLPlain textDelimited Subject:   Email to:

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