Record Display for the EPA National Library Catalog


Main Title Combined Cooling and Bio-Treatment of Beet Sugar Factory Condenser Water Effluent.
Author Lo, George O. G. ; War, John C. ; Ha, O. J. ;
CORP Author Colorado State Univ., Fort Collins. Dept. of Civil Engineering.
Year Published 1971
Report Number DI-14-31-0001-3006; OWRR-A-008-COLO; 08792,; A-008-COLO(1)
Stock Number PB-209 640
Additional Subjects ( Food processing ; Industrial waste treatment) ; ( Cooling towers ; Aerobic processes) ; ( Water pollution ; Industrial wastes) ; Sugar beets ; Industrial water ; Cooling water ; Oxidation ; Sugars ; Trickling filtration ; Design ; Heat ; Biochemical oxygen demand ; Columns(Process engineering) ; Chemical engineering ; Column packings ; Sugar beet processing ; Thermal pollution ; Water pollution control
Library Call Number Additional Info Location Last
NTIS  PB-209 640 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 85p
Reduction of thermal and organic pollution by heated water from the direct contact condensers on vacuum evaporators in a beet sugar factory was studied by treating samples in a laboratory-size packed column. Cooling of the water, bio-oxidation of dissolved organic matter (primarily sucrose), and removal of nitrogen (primarily as ammonia) were achieved by counter-current contact between descending water and a rising air stream. Organic content, as measured by COD values, was reduced. The cooling data were correlated by the equation, K(y) A = 0.54 G where K(y)A IS POUNDS OF WATER EVAPORATED PER HOUR, FT3 OF PACKING, UNIT HUMIDITY DIFFERENCE, AND G is lbs air flow per hour, ft2 cross section. Adjusted temperature change in the column ranged from a low of 22 degrees (122 degrees in, 100 degrees out) to a high of 42 degrees (121 degrees in, 79 degrees out).