Record Display for the EPA National Library Catalog
RECORD NUMBER: 17 OF 275Main Title | Aqueous-phase oxidation of sludge using the vertical reaction vessel system. {Microfiche} | |||||||||||
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CORP Author | Longmont, CO.;Environmental Protection Agency, Cincinnati, OH. Water Engineering Research Lab. | |||||||||||
Publisher | U.S. Environmental Protection Agency, Water Engineering Research Laboratory, | |||||||||||
Year Published | 1987 | |||||||||||
Report Number | EPA/600/2-87/022 | |||||||||||
Stock Number | PB87-170320 | |||||||||||
Subjects | Sewage sludge--United States ; Sewage disposal--United States ; Sewage--Purification--Oxidation | |||||||||||
Additional Subjects | Oxidation ; Sludge ; Sewage treatment ; Municipalities ; Pressure ; Temperature ; Pumping ; Hydrostatic pressure ; Reduction ; Solids ; Graphs(Charts) ; Schematic diagrams ; Process charting ; Sewage treatment plants ; Chemical oxygen demand ; Reaction vessels | |||||||||||
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Collation | 128 p. : ill. ; 28 cm. | |||||||||||
Abstract | The overall objective of the study was to provide plant-scale operating data on the wet-oxidation of municipal wastewater sludge utilizing the Vertical Reaction Vessel System and the effect of the return flow from the wet-oxidation process on the operation of the wastewater treatment plant. The Vertical Reaction Vessel System consists of a series of long concentric tubes placed in the earth using conventional oil field technology. Vertical construction produces a high hydrostatic head at the bottom of the system. The high pressure prevents boiling at temperatures of 250 degrees or higher required for wet-oxidation. By utilizing hydrostatic pressure, the only pumping required is that to overcome frictional losses. At temperatures above 260 degrees C total chemical oxygen demand reduction of about 80% and total volatile solids reductions of over 90% were consistently achieved. |
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Notes | Caption title. "Mar 1987." "EPA-600/2-87/022." Microfiche. |