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OLS Field Name OLS Field Data
Main Title Methanol Requirement and Temperature Effects in Wastewater Denitrification.
Author Dholaki, Shirish G. ; Ston, James H. ; Burchfiel, Harry P. ;
CORP Author Gulf South Research Inst., New Iberia, La.
Year Published 1970
Report Number DI-14-12-527; 17010-DHT-09/70,; 06246
Stock Number PB-198 221
Additional Subjects ( Water pollution ; Nitrates) ; ( Sewage treatment ; Denitration) ; ( Chemical removal(Sewage treatment) ; Nitrates) ; ( Nutrients ; Chemical removal(Sewage treatment)) ; ( Biodeterioration ; Nitrates) ; Methyl alcohol ; Metabolism ; Microorganisms ; Pilot plants ; Oxygen ; Dissolved gases ; Temperature ; Water pollution control
Holdings
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Status
NTIS  PB-198 221 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 46p
Abstract
The removal of eutrophying nutrients from wastewater effluent is of first rank priority in pollution control. One of the major problems is the removal of low concentrations of nitrogen from large volumes of water at an acceptable cost. A pilot-scale, denitrifying plant was built using two types of continuous-flow reactors, a packed column and a suspended growth chamber. Denitrification at three temperature regimes and three dissolved oxygen levels was studied as a function of the methanol:NO3-N ratio. The most efficient ratio was usually found to be between 2:1 and 3:1. Effective denitrification at lower temperatures and high dissolved oxygen content required ratios equal to or slightly greater than 3:1. (Author)