0 votes 0 votes For a given water sample, the ratio between BOD$_{\text{5-day, 20}^{\circ} C}$ and the ultimate BOD is $0.68$. The value of the reaction rate constant $k$ (on base $e$) (in day$^{-1}$, up to two decimal places) is ________ Water and Waste Water Quality and Treatment gate2017-ce-2 numerical-answers water-and-waste-water-quality-and-treatment environmental-engineering biological-oxygen-demand + – gatecse asked Aug 7, 2019 • retagged May 25, 2021 by Chandanachandu gatecse 4.0k points answer See all 0 reply