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Calculate dichromate concentration to oxidize organic pulp

The effluent from a pulp and paper operation has a COD of 209 ppm and a BOD of 4.9 ppm.

a) What can you conclude about the nature of the organic compounds in the effluent from the values of COD and BOD?

b) What volume of 0.050 M K2Cr2O7 would be required to completely oxidize the organics in a 50.0 mL sample of effluent?

Solution Summary

The nature of organic waste from a treatment plant is deduced using COD and BOD values. The concentration of dichromate required to oxidize the waste is calculated.