Solids analyses were conducted on the domestic wastewater that was tested for BOD in Pro...

Solids analyses were conducted on the domestic wastewater that was tested for BOD in Problem 3-35. The tests were done in triplicate. Based on the following test data, calculate the concentrations of total solids, total volatile solids, suspended solids, and volatile suspended solids.

Problem 3-35:

Determine the 5-day BOD and k-rate for a raw domestic wastewater based on the following test data. Draw the BOD-time curve and graph for determination of the k-rate. The 300-ml test bottles were filled with 2.00 percent wastewater mixed with dilution water. The initial dissolved oxygen (DO) in all bottles was 8.3 mg/l based on three bottles titrated after preparation. The time-residual DO data for the incubated bottles were as follows: t = 1.1 days, DO = 6.7mg/l; 2.2 days, 6.0 mg/l; 4.3 days, 4.7 mg/l; 6.3 days, 3.8 mg/l; and 14.4 days, 2.4 mg/l.