Given the following data for a BOD determination run on an industrial waste

sample and incubated for $5$ days at $20C$ in the dark; calculate the $BO{D}_{5,20}.$

This industrial waste required a seeded sample and in this measurement direct

seeding of the BOD bottles was used.

Data:

BOD bottle volume

$300mL$

Seed Blanks $($B$\text{'}$s$)$

mL seed added to BOD bottles

DO$,$ in bottle containing seed and dilution water

DO$,$ in bottle containing seed and dilution water

Diluted Waste Samples $($D$\text{'}$s$)$

mL seed added to BOD bottles

mL industrial waste added to BOD bottles

$D{O}_i$ in bottle containing seed, industrial waste

and dilution water

$D{O}_1$ in bottle containing seed, industrial waste

and dilution water

$2\mathrm{.}00mL$

$5\mathrm{.}00mL$

$8\mathrm{.}60m\frac{g}{L}$

$2\mathrm{.}40m\frac{g}{L}$