Civil and Environmental Engineering Homework Solutions
Incoming wastewater, with BOD5 equal to about 200 mg/l, is treated in a well-run secondary treatment plant that removes 90 percent of the BOD. You are to run a five-day BOD test with a standard 300-ml bottle, using a mixture of treated sewage and dilution water (no seed). Assume the initial DO is 9.2 mg/l. Thus we have: BOD5 = ...continues
