Record Display for the EPA National Library Catalog

RECORD NUMBER: 86 OF 184

OLS Field Name OLS Field Data
Main Title Laboratory Procedures for Determining the Biochemical Oxygen Demand (BOD) of Incinerator Quench Water.
Author Wilson., Donald L. ;
CORP Author Bureau of Solid Waste Management, Cincinnati, Ohio.
Year Published 1970
Report Number EPA-RS-03-68-17;
Stock Number PB-256 947
Additional Subjects Water analysis ; Water pollution ; Cooling water ; Incinerators ; Quenching(Cooling) ; Laboratory equipment ; Experimental design ; Calibrating ; Precision ; Accuracy ; Sensitivity ; Sites ; Winkler test ; Alsterberg(Azide) modifications ; Biochemical oxygen demand ; Water pollution detection
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-256 947 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 44p
Abstract
The analysis of an aerated, diluted sample for its BOD involves the determination of its dissolved oxygen content before and after an incubation period. The difference between the initial dissolved oxygen and the final oxygen content represents the oxygen demand of the sample. The oxygen demand of incinerator quench water (or similarly polluted water) is exerted by three classes of materials: (a) carbonaceous organic material usable as a food source by aerobic organisms; (b) oxidizable nitrogen derived from nitrite, ammonia, and organic nitrogen compounds which serve as food for specific bacteria (e.g. Nitrosomonas and Nitrobacter); and (c) certain chemical reducing compounds (e.g. ferrous iron, sulfite, and sulfide) which will react with molecularly dissolved oxygen. Since incinerator quench water may contain many variables which affect the Winkler Method of analysis, the Dissolved Oxygen Analyzer Method is recommended for BOD analysis of all quench water sample. The Alsterberg (Azide) Modification of the Winkler Method is recommended for standardization of the Analyzer using the relatively pure dilution water. The sampling location at each site is very important in the evaluation of the data. The sampling site should be chosen on the basis of obtaining the most representative sample.