ou have been contracted to determine the characteristics of raw water at 20°C. You complete a chlorine dosing experiment to aid in designing your chlorination process (Figure Below). a. What is the breakpoint chlorine dosage? b. What is the chlorine demand at a chlorine dosage of 1.2 mg/L? c. For a plant that processes 10 m3/hr, how much chlorine should I add per day to reach a constant residual chlorine concentration of 0.7 mg/l

ou have been contracted to determine the characteristics of raw water at 20°C. You complete a chlorine dosing experiment to aid in designing your chlorination process (Figure Below). a. What is the breakpoint chlorine dosage? b. What is the chlorine demand at a chlorine dosage of 1.2 mg/L? c. For a plant that processes 10 m3/hr, how much chlorine should I add per day to reach a constant residual chlorine concentration of 0.7 mg/l

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter3: Collection

Section: Chapter Questions

Problem 3.7P

See similar textbooks

Similar questions

Calculate length of the pipe required to bring down the concentration of chlorine from 6x105 CFU/L to the permissible value of 2500 CFU/L. It is given that the velocity of flow through the pipe is 0.7 m/s and the rate constant is 0.25 per min.
An effluent at flow rate of 2670 m3/day is to be treated. The dosage of chlorine is 15 mg/lt and the disinfection model is Nt=Noe-0.145t. Determine the volume of disinfection unit required to kill 98% microbes.
An orifice meter was calibrated by the manufacturer for air at 25℃ and 1atm. It is installed in an air sampling system where it operates at 33℃, 0.9atm and reads a ΔP of 4.8″H2O. The calibration curve has the relationship Qi=41×(ΔP)1/2in slpm(liters per minute at 25℃, 1atm). What is the true gas flow rate in slpm?
An effluent at flow rate of 2760 m3/day is to be treated. The dosage of chlorine is 15 mg/lt and the disinfction model is Nt=Noe-0.145t. Determine the volume of disinfection unit required to kill 98% microbes.
Engineering Management ,i need solutions in 10 minutes please. MCQ/The activity which has zero duration and used to show that the following activity cannot be started until the end of the preceding activity known as: A-Event B-Constant C-Dummy D-Free float
Three pipes of different lengths and diameters connected in series as shown discharges 169 lit/sec. If f=0.012 and disregarding minor losses, determine a. the head loss in each pipe. b. the diameter of an equivalent single pipe that could replace all the 3 pipes. ASAP
6. A 100 mg iv-bolus of DRUG A is administered to patient and blood samples are collected for 24 hours after dose administration. The AUC(0-12 hours) was 38 (mg-hr)/L. Assume that the clearance (CI) of DRUG Z is 2 L/hr what percentage of the dose was eliminated in the first 12 hours and what is the approximate half life of this drug?
Calculate length of the pipe required to bring down the concentration of chlorine from 6x105 CFU/L to the permissible value of 2500 CFU/L. It is given that the velocity of flow through the pipe is 0.7 m/s and the rate constant is 0.25.
A technician recovered 221⁄2 pounds of refrigerant R-12 for disposal by emptying5⁄6 of a pound of R-12 from each of a number of portable dehumidifier units. Howmany dehumidifier units did the technician empty?
As the project engineer for your consulting firm, you are in charge of designing a flocculation tank to treat municipal drinking water. The design flow for the plant is 0.050 m3/s. The average water temperature is 10oC. The following design assumptions for the flocculation basin have been made:Number of tanks = 1Number of compartments in tank: 3Tapered G in 3 compartments: 60, 50, and 20 s-1Detention time = 30 min for entire flocculation basinDepth = 3 mTanks will have a square compartment plan (overhead) view1 Horizontal shaft paddle wheel per axis will be usedPaddle wheels will have 4 arms and 2 blades/armPaddle blades are 3 m long by 0.6 m wide. Assume blade spacing (diameter) of 1 and 2 m. Design the flocculation tank by providing the following for the first two compartments only:a) Tank and compartment dimensions in mb) Water power input in kWc) Rotational speed of the paddle wheel shaft in rpm
This is I'm uploading second time. First time received solution also attached. If you got same answer please leave it question. An elevated storage supplies water to a residential catchment with a population of 10000. The average water consumption is 300 L/c/d. The typical spacing between houses is 5 m. Determine the minimum fire flow rate required in L/min.
Show all problem solution's steps. Direct formula substitution solutions will have NO CREDIT POINTS. A 75 mm diameter fire hose discharges water through a nozzle having a jet diameter of 25 mm. The lost head in the nozzle is 25% of the velocity head in the jet. If the pressure at the base of the nozzle is 625 KPa: compute the discharge in m3/min; the maximum horizontal range to which the stream can be thrown; the maximum vertical reach, and the diameter of the jet at a point two-third of the maximum vertical reach from the tip of the nozzle. Neglect air resistance.