Question

Design a rectangular flocculation tank to treat a flow rate of 2.5 mgd. You need to...

  1. Design a rectangular flocculation tank to treat a flow rate of 2.5 mgd. You need to

      determine the following:

  • length, width, and depth of the tank
  • horizontal velocity through the tank
  • draw a typical schematic

                Note: You need to consider more than one tank if the length would exceed 100ft

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Design flocculation tanks to treat 32800 m3/d adhering to the following initial recommendations and satisfying the...
Design flocculation tanks to treat 32800 m3/d adhering to the following initial recommendations and satisfying the conventional design parameters. Paddle flocculators: Two parallel tanks (each receiving one half of the total flow) The tank has a length of 18 m, width of 6.0 m and depth of 3.5 m Each tank has three stages, each stage occupying a square space with a paddle wheel mounted on horizontal shaft Each paddle wheel has 4 arms with 2 blades per arm The...
A wastewater treatment plant receives an average of 3.0 MGD of wastewater flow. Two rectangular primary...
A wastewater treatment plant receives an average of 3.0 MGD of wastewater flow. Two rectangular primary clarifiers operating in parallel will treat the flow. If the length of each clarifier is four times its width, the width is 20 ft, and the depth is 10 ft, determine: a) the overflow rate in gpd/ft2. b) the detention time of each clarifier (in days).
A rectangular shaped sedimentation tank is to be built for a design flow of 600 m3/h....
A rectangular shaped sedimentation tank is to be built for a design flow of 600 m3/h. If the detention time, overflow rate and weir loading rate are 3 hours, 50 m3/m2.d, 100 m3/m.d, calculate the length, width and depth of the tank and the weir length. (assume length to width ratio of 3:1) (8 points)
Design a horizontal flow grit chamber to remove grit (SG = 2.5) of size 0.2 mm...
Design a horizontal flow grit chamber to remove grit (SG = 2.5) of size 0.2 mm and larger for a water temperature of 20°C. The average daily flow rate is 2.227 MGD. The chamber should be designed to treat the peak hourly flow. The flow peaking factor (i.e., ratio of peak hourly to average daily) is 2.5. Use a ratio of tank depth to width of 1.25. Use a safety factor of 1.35 (i.e., Adplan = Aplan ́ 1.35). Make...
Dechlorination contact tank (Wastewater Treatment) An activated sludge plant has a design flow (average daily flow)...
Dechlorination contact tank (Wastewater Treatment) An activated sludge plant has a design flow (average daily flow) of 11 MGD. Determine dimensions of dechlorination tank. The design parameters: use 1 tank. detention time = 30 sec, depth = 10 ft, rectangular tank: L = 4 W. use maximum hourly flow (3 * Average design flow)
A rectangular horizontal-flow sedimentation basin in a conventional water treatment plant has been designed to treat...
A rectangular horizontal-flow sedimentation basin in a conventional water treatment plant has been designed to treat a flow of 50,000 m3 /day. It has a length = 80 m, width = 20 m, and depth = 3.6 m. For this problem, assume temperature = 20 °C (density of water = 103 kg/m3 and viscosity = 10-3 kg/m·s) and laminar flow. a. What is the hydraulic detention time? Does this meet the typical criteria for this type of sedimentation basin? b....
A conventional, rectangular flocculation basin is 38 ft. wide, 90 ft. long and 16 ft. deep....
A conventional, rectangular flocculation basin is 38 ft. wide, 90 ft. long and 16 ft. deep. The flow through the basin is 24 mgd and the water horsepower input by the reel type paddles is 15 hp. The dynamic viscosity of water is 2.73 E -5 lb/sec/ft2 at 50 degrees Fahrenheit. The flocculation basin in above is followed by four sedimentation basins which operate in parallel.   Each basin is 30 ft. wide, 240 ft. long and has an effective settling...
You have been asked to provide a design for a rapid mix tank at a water...
You have been asked to provide a design for a rapid mix tank at a water treatme nt plant which has an average water temperature of 50F. The tank is to have a detention time (td= HRT) of 1.5 seconds, a mixing intensity (G) of 2,000/second, and treat a flow (Q) of 10 mgd. a. Identify the volume of reactor required (in ft^3 and gallons) b. Find the reactor dimensions (i.e., Depth and Diameter, in feet) if the rapid mix...
Design high-rate sedimentation tank(s) for a water treatment plant using plate settlers. 1. Design the rectangular...
Design high-rate sedimentation tank(s) for a water treatment plant using plate settlers. 1. Design the rectangular sedimentation tank(s), including launders and sludge collection mechanism. 2. Design the countercurrent plate settlers, including length, angle, and distance between plates (to achieve 100% removal of the target particle described below). 3. Draw a cross-section of the sedimentation tank with dimensions, indicating the concrete walls, main pipes, launders, plate settlers. 4. Quantify/discuss the improvement(s) that may result from installing the plate settlers. Inputs: Design...
ANSWER as much as possible: Design an activated sludge process consisting of a complete mix flow...
ANSWER as much as possible: Design an activated sludge process consisting of a complete mix flow through aeration tank followed by final settling tanks. The sizing of the reactor and all appurtenances should be based on a solids retention time, (SRT), of 4 days and the particulates given below. Biological characteristics: Ks = 20 mg/L COD, kd = 0.1 per day, mumax = 3 gVSS/gVSS-day,    Y = 0.4 gVSS/gCOD Primary settling Tank Effluent Characteristics: Q= 20MGD, biodegradable COD, bCOD...