Question

). In a wastewater treatment plant a circular sedimentation tank need to be design. A influent...

). In a wastewater treatment plant a circular sedimentation tank need to be design. A influent flowrate is 0.15 Million cubic meter per day and the surface loading is 822.4 m3/d-m2 and detention time is 1.3 hours. Calculate the diameter and height of the sedimentation tank                     

Engineering   Civil-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
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)
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)
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...
Problem #3: Biochemical Oxygen Demand (BOD) and Stream Quality A wastewater treatment plant designed for a...
Problem #3: Biochemical Oxygen Demand (BOD) and Stream Quality A wastewater treatment plant designed for a community of 45,000 people has a flow of 100 gal/person/day and a BOD5 loading of 0.2 lb/person/day. The upstream characteristics of the receiving waters are: stream flow rate = 20 cfs and BOD5 = 2 mg/L The water quality standards require the in-stream BOD5 to be less than 7 mg/L in this stretch of the river. The minimum BOD removal efficiency that the treatment...
A 14 mgd wastewater treatment plant has a primary clarifier that treats an influent with 800...
A 14 mgd wastewater treatment plant has a primary clarifier that treats an influent with 800 mg/L of solids and a removal efficiency of 55%. Sludge at the bottom of the tank is pumped at a rate of 0.1 mgd. a. What is the effluent solids concentration from the clarifier (in mg/L)? b. What is the solids concentration in the sludge at the bottom of the tank (in mg/Land %)? c. The primary sludge is further processed in a digester...
You have been retained to design a wastewater treatment plant using a conventional activated sludge process...
You have been retained to design a wastewater treatment plant using a conventional activated sludge process for a town of 40,000 people. The industrial flow contribution to the sewer system is 300,000 gallons per day. Effluent discharge standards require effluent BOD5 and total suspended solids concentration of <10 mg/l. Assume the following design criteria are applicable: Domestic sewage flow = 100 gal/cap/day (including I/I) BOD loading = 0.18 lbs/cap/day TSS loading = 0.20 lbs/cap/day BOD removal in primary = 33%...
Design a cubic rapid mixer for a water treatment plant with a peak flow rate of...
Design a cubic rapid mixer for a water treatment plant with a peak flow rate of 20,000 m3/d.  Assume the velocity gradient G in the mixer is to be at least 1,000 s-1and the detention time is at least 10 s. Determine the size of the mixing tank, the power input, and the rotational speed of the mixer if the radial flow impeller power number is 6.0
The volumetric flow to the ACME wastewater treatment plant is 25 MGD. The influent soluble BOD5...
The volumetric flow to the ACME wastewater treatment plant is 25 MGD. The influent soluble BOD5 is 200 mg/L and the effluent soluble BOD5 is 8 mg/L. The plant is designed to operate with a mean cell (biomass) residence time of 10 days. The yield coefficient is 0.6 mg biomass/mg substrate, and the biomass decay rate is 0.09/day. The reactor is to operate at a biomass concentration of 2500 mg/L. The thickened underflow biomass concentration from the secondary clarifier is...
A wastewater treatment plant that treats wastewater to secondary treatment standards uses a primary sedimentation process...
A wastewater treatment plant that treats wastewater to secondary treatment standards uses a primary sedimentation process followed by an activated sludge process composed of aeration tanks and a secondary clarifiers. This problem focuses on the activated sludge process. The activated sludge process receives a flow of 15 million gallons per day (MGD). The primary sedimentation process effluent has a BOD5 concentration of 180 mgBOD5/L (this concentration is often referred as S). Before flowing into the activated sludge process, the primary...
. A wastewater treatment plant is to be designed for the 5-d sustained peak flowrate given...
. A wastewater treatment plant is to be designed for the 5-d sustained peak flowrate given an average daily flow of 13 MGD. Two aerated grit chambers in parallel will provide a total detention time of 4 minutes at peak flow. Determine: a) The volume of each chamber, in m3 . b) Chamber dimensions, in m, (length and width) if the design depth is 3.5 m and W:D is 1.2:1. Is the calculated L:W within the recommended range? c) Using...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT