Question: Help me solve this problem using the equation provided You and your team have decided to build an aerated lagoon to treat the waste generated

Help me solve this problem using the equation provided You and your team have decided to build an aerated lagoon to treat the

Help me solve this problem using the equation provided

You and your team have decided to build an aerated lagoon to treat the waste generated by a local village in a developing country. You estimate that the influent flow rate will be around 40m3/d and the BOD5 roughly 250mg/L. To avoid impacting the river that will receive the effluent, the BOD5 must be reduced to 15mg/L. Based on your experimental lab work, you have determined the following microbial kinetic parameters: Ks=100mgBOD5/Lkd=0.1d1m=1.6d1Y=0.6mgVSS/mgBOD5 (a) To meet the effluent BOD5 limit, what must the hydraulic retention time (HRT) be in the lagoon? (b) What mass of microbes will be produced in the lagoon each day? How could this be problematic for the operation of the lagoon? S=mVQVkdKs(Q+Vkd)

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