Find dissolved-oxygen concentration at point of discharge

Reference no: EM13318852

An industrial waste water treatment plant discharges into a large river. the industrial waste water is at 1m^3/s and contains an ultimate BOD concentration of 300mg/L at a temperature of 30 degrees C and a DO concentration of 2.5mg/L. the velocity of the river is 1.5m/s. Upstream of the point of discharge, the river has a temperture of 11 degrees Celcius, an ultimate BOD of 22mg/L, a DO concentration of 10mg/L and a flow rate of 4m^#/s. the deoxygenation rate and the reoxygenation rate coefficients are 0.15d^-1 and 0.5d^-1 at 20 degrees Celcius respectively.

Find:a) Temperature of the water at the discharge point.

B)dissolved-oxygen concentration at the point of discharge.

C)Dissolved-oxygen deficit at the point of discharge.

D) ultimate BOD at the point of discharge.

Reference no: EM13318852

Questions Cloud

Explain what is the new pressure p2 inside the container : Consider 4.90 L of a gas at 365 mmHg and 20. degrees celisus . If the container is compressed to 3.00 L and the temperature is increased to 40.degrees celisus , what is the new pressure, P2, inside the container

What is the biomass concentration in the aeration tank : average flow rate = .0022 m^3 /s (190 m^3 /d) Influent Substrate concentration = 250 mg/L as COD (all essentially soluble) Mean cell residence time is to be 5 days Volume of mix tank = 25 m^3 the reactors kenetic constants are

Determine the recoil velocity : For tests using a ballistocardiograph, a patient lies on a horizontal platform that is supported on jets of air. determine the recoil velocity

Individuals to accomplish routine activities : As Parkinson Disease (PD) progresses, the time necessary for individuals to accomplish routine activities of daily living, such as eating, drinking, dressing, and ambulating,

Find dissolved-oxygen concentration at point of discharge : An industrial waste water treatment plant discharges into a large river. the industrial waste water is at 1m^3/s and contains an ultimate BOD concentration of 300mg/L at a temperature of 30 degrees C and a DO concentration of 2.5mg/L

Compute the current in the inductor : An inductor has an inductance of 0.082 H. The voltage across this inductor is 45 V, What is the current in the inductor

Explain the coefficients for compound in order : 2CaH18(g) + 9O2(g) > 2Ca2(g) + 18H2O(g) Enter the coefficients for each compound in order, separated by commas. For example, 1,2,3,4 would indicate one mole of C8H18, two moles of O2, three moles of CO2, and four moles of H2O.

By what factor does the amplitude change : A source vibrating at constant frequency generates a sinusoidal wave on a string under constant tension. by what factor does the amplitude change

What additional factors should terry consider when deciding : Terry wants to purchase a used car for $8000. The dealer offered to finance the deal at 8.5% APR for 4 years with 10% down payment. Terry's bank will provide a loan at 7.8% for 3 years, but wants a 20% downpayment.

User Account

All Pages