Determine number of kilograms of chlorine needed per day

Assignment Help Civil Engineering

Reference no: EM13313705

Consider again the proposed water treatment plant for a city of 100,000 people where the maximum daily water usage rate is 99 X 106 L/d. Determine (a) the number of kilograms of chlorine needed per day and (b) the capacity of the contact tank. You may assume that the chlorine demand is 1.0 mg/L and that the desired chlorine residual is 0.2 mg/L. Furthermore, you may assume that the minimum contact time should be 30 minutes.

(The contact time in water treatment plants is usually provided by a large storage chamber called a clear well or storage reservoir. The primary function of the clear well is to isolate the plant from the hourly fluctuation of municipal water demand, but it also serves the purpose of allowing sufficient time so that the concentration of free available chlorine will stabilize at the proper value before being pumped to users.)

Reference no: EM13313705

Questions Cloud

Determine how far away are the cliffs : You are on a boat in a fog and know there are cliffs ahead of you somewhere, but you cannot see them. How far away are the cliffs

Explain what is the final temperature of substances : A 31.3g wafer of pure gold initially at 69.3^\circ C is submerged into 64.1g of water at 27.7^\circ C in an insulated container. What is the final temperature of both substances at thermal equilibrium

Determine the size and power requirements for rapid mix : A water treatment plant is processing water at s flow rate of 0.26m^3/s. The hydraulic detention times for the rapid mix tank, flocculation basin and the rectangular sedimentation basin are 10 sec, 30 min, 60 min, respectively.

Determine the wavelength of the resulting wave on the cable : A steel cable with a total length of 25.6 m and total mass of 95 kg is connected to two poles. Calculate the wavelength of the resulting wave on the cable

Determine number of kilograms of chlorine needed per day : Consider again the proposed water treatment plant for a city of 100,000 people where the maximum daily water usage rate is 99 X 106 L/d. Determine (a) the number of kilograms of chlorine needed per day and (b) the capacity of the contact tank.

Explain the energy of a photon of electromagnetic radiation : Calculate the energy of a photon of electromagnetic radiation at the following frequency 103.7 (typical frequency for FM radio broadcasting) in J.

Explain how to determine the max height of a brick wall : Assuming a density of 120/ft^3 for masonry brick work, determine the max height of a brick wall if the allowable compressive stress is limited to 150/in^2 and the brick is a) 4" wide b) 6" wide.

What is the minimum detention time in hours to settle out : The settling velocity of alum floc in a sedimentation basin is approximately 0.0014 fps. Calculate the equivalent overflow rate in gpd/ft2. What is the minimum detention time in hours to settle out the alum floc in an ideal basin with a depth of 1..

What is the angular momentum of the rod : A thin rod has a length of .25 m and rotates in a circle on a frictionless tabletop. The axis is perpendicular to the length of the rod at one of its ends. What is the angular momentum of the rod before the bug started crawling

User Account

All Pages