A lake with a single inflow stream has the following characteristics: Mean depth = 5 m; Surface area = II X 106 m2 ; Residence time = 4.6 yr An industrial plant presently discharges malathion ( W = 2000 X 106 g yr-1 ) to the lake. In addition the inflowing stream also contains malathion (Cin = 1 5 mg L - 1 ). Note that the volumetric rate of inflow and outflow are equal. Assuming that a first-order decay reaction can be used to characterize malathion decay (k = 0. 1 yr- I ), (a) Write a mass-balance equation for malathion for this system.
A lake with a single inflow stream has the following characteristics: Mean depth = 5 m; Surface area = II X 106 m2 ; Residence time = 4.6 yr An industrial plant presently discharges malathion ( W = 2000 X 106 g yr-1 ) to the lake. In addition the inflowing stream also contains malathion (Cin = 1 5 mg L - 1 ). Note that the volumetric rate of inflow and outflow are equal. Assuming that a first-order decay reaction can be used to characterize malathion decay (k = 0. 1 yr- I ), (a) Write a mass-balance equation for malathion for this system.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A lake with a single inflow stream has the following characteristics: Mean depth = 5 m; Surface area = II X 106 m2 ; Residence time = 4.6 yr
An industrial plant presently discharges malathion ( W = 2000 X 106 g yr-1 ) to the lake. In addition the inflowing stream also contains malathion (Cin = 1 5 mg L - 1 ). Note that the volumetric rate of inflow and outflow are equal. Assuming that a first-order decay reaction can be used to characterize malathion decay (k = 0. 1 yr- I ),
(a) Write a mass-balance equation for malathion for this system.
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