WATER QUALITY (ENGG*3590) LAB WRITE-UPEXPERIMENT ON BIOLOGICAL OXYGEN DEMAND

Please prepare an individual formal lab report as outlined in the Water Quality LaboratoryManual (approximately 5 pages in length, excluding figures). Following is a partial list of thingsthat should be included in the lab report:

1. analyse the data using the Thomas method described in class (incubation temperature @ 20 C) and determine:

a) BODu and k b) average daily BOD5 2. discussion should include: a) engineering significance of BOD and BODu b) why would "seed" sometimes be used in dilution water c) significance of nitrification inhibitor d) how could BOD5 be used to measure the efficiency of a treatment process e) experimental errors that have caused any variations in the results f) laboratory observations made 3. references other than your class notes should be consulted.

rgz\3859\BOD_LAB_Requirements.wpd