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(Solved): (5 pts.) The Waramurungundi tannery with a wastewater flow of 0.011m^(3)*s^(-1) and aBOD_(5) of 590m ...
(5 pts.) The Waramurungundi tannery with a wastewater flow of
0.011m^(3)*s^(-1)and
aBOD_(5)of
590mgL^(-1)discharges into the Djanggawul Creek. The creek has a 10-year, 7-day low flow of 1.7
m^(3)*s^(-1). Upstream of the Waramurungundi tannery, the
BOD_(5)of the creek is
0.6mg*L^(-1). The BOD rate constants
(k)are
0.115day^(-1)for the Waramurungundi tannery and
3.7day^(-1)for the creek. Calculate the initial ultimate BOD after mixing. Hint: Note that the given info is in terms of
BOD_(5)and the problem is asking for the ultimate BOD after mixing
(L_(0)). Answer:
9.27mg*L^(-1)