Record Display for the EPA National Library Catalog
RECORD NUMBER: 371 OF 705Main Title | Methanol requirement and temperature effects in wastewater denitrification. | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Author | Dholaki, Shirish G. ; Ston, James H. ; Burchfiel, Harry P. ; | ||||||||||||||||
CORP Author | Gulf South Research Institute.; Gulf South Research Inst., New Iberia, La. | ||||||||||||||||
Publisher | [Environmental Protection Agency, Water Quality Office]; for sale by the Supt. of Docs., U.S. Govt. Print. Off., | ||||||||||||||||
Year Published | 1970 | ||||||||||||||||
Report Number | PB198221 | ||||||||||||||||
Stock Number | PB-198 221 | ||||||||||||||||
OCLC Number | 27214509 | ||||||||||||||||
Subjects | Sewage--Purification--Biological treatment ; Nitrogen--Fixation ; Methanol | ||||||||||||||||
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 |
|
||||||||||||||||
Collation | vi, 38 pages illustrations 28 cm. | ||||||||||||||||
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) |
||||||||||||||||
Notes | Prepared for the Water Quality Office, U.S. Environmental Protection Agency under contract no. 14-12-527. "17010DHT09/70." Master microform held by: NN. Includes bibliographical references. Microfiche. |