You must design to treat a steady water flow rate of

Reference no: EM13546703

A municipal drinking water treatment plant discovers that it has an unacceptably high level of the pesticide carbofuran and must develop a treatment technique to reduce the concentration to satisfy the relevant water quality standard. The treatment method of choice is sorption on activated carbon. Your firm gets the design job and you are assigned to do the preliminary calculations. Research has revealed that the sorption of carbofuran onto activated carbon from water follows this isotherm:

qe=266 ( Ce) ^0.41

where Ce (mg/L) is the equilibrium concentration of the species in water and qe(mg/g) is the mass of sorbed carbofuran per mass of activated carbon. The carbofuran concentration in untreated water is 0.9 mg/L. The drinking water standard is 0.04 mg/L. You must design to treat a steady water flow rate of 0.32 m^3/s. One possible approach is to mix powdered activated carbon (PAC) with the water, wait for equilibrium to be attained, then remove the PAC. At what rate must PAC be added (g/s) to meet the proposed standard?

Reference no: EM13546703

Questions Cloud

What would be the new minimum downstream do : A single source of BOD causes an oxygen sag curve with a minimum downstream DO equal to 6.0 mg/L. If the BOD of the waste is doubled (without increasing the waste flow rate),

How might your numerical answers for both c and d vary : Assuming you had the necessary inputs to get a numerical value for both C and D, how might your numerical answers for both C and D vary if the polymer tensile member is located in Michigan versus Texas? Why?

The function of turn buckle in designing saloon and steel : In the first couple steps you are using the sine function to derive that the interior triange BCG is a right triangle. However, the sine function, by definition, is opposite divided by hypotenuse. You used sine as opposite dividede by adjacent which ..

How much revenue will stelle recognize : The company spent an accumulated total of €6 million. How much revenue will Stelle recognize in Year 3 - How much revenue will Stelle recognize in Year 2?

You must design to treat a steady water flow rate of : Where Ce (mg/L) is the equilibrium concentration of the species in water and qe(mg/g) is the mass of sorbed carbofuran per mass of activated carbon. The carbofuran concentration in untreated water is 0.9 mg/L. The drinking water standard is 0.04 mg/L..

Determine the discharge in the channel in m : A very long rectangular channel connects two reservoirs and has a longitudinal slope of 0.005. The channel has a width of 10 m and a Manning’s n of 0.030.

Prepare the balance sheet of the real estate business : Prepare the balance sheet of the real estate business of Andrea Scarlett, Realtor, at September 30, 2012 - identify the personal items that would not be reported on the business records.

List the inputs necessary to determine the stress in the : Assuming you had the necessary inputs to get a numerical value for both c and d, how might your numerical answers for both c and d vary if the polymer tensile member is located in MI versus TX? Why?

How the equation for splitting tensile strength of a concret : Need to know how the equation for splitting tensile strength of a concrete cylinder f(ct) = 2P/pi*D*L is derived using mechanics of materials or linear elasticity approach.

User Account

All Pages