A water treatment plant operates two circular sedimentation basins in parallel to remove suspended solids and treats a total flow of 12 mgd. Each basin is center-fed (i.e., water comes into the reactor in the middle and radiates toward the outside of the basin) and the solid-free water exits the reactor over weirs that are located 2 feet within the basin perimeter. Each tank has a diameter of 65 feet with a water depth of 12 feet. 2. a. What is the detention time in each clarifier (in minutes)? b. What is the overflow rate for each clarifier (in ft’/ft²-d and gpd/ft²)? c. What is the weir loading rate for each clarifier (in ft'/ft-d and gpd/ft)?

A water treatment plant operates two circular sedimentation basins in parallel to remove suspended solids and treats a total flow of 12 mgd. Each basin is center-fed (i.e., water comes into the reactor in the middle and radiates toward the outside of the basin) and the solid-free water exits the reactor over weirs that are located 2 feet within the basin perimeter. Each tank has a diameter of 65 feet with a water depth of 12 feet. 2. a. What is the detention time in each clarifier (in minutes)? b. What is the overflow rate for each clarifier (in ft’/ft²-d and gpd/ft²)? c. What is the weir loading rate for each clarifier (in ft'/ft-d and gpd/ft)?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: Please solve all points

A: 1.1 Proper F/M (Food to Microorganism) ratio in a conventional activated sludge process typically…

Q: A sediment pond has been designed to take flood water from a small river that is high in suspended…

A: Waste water treatment for Ponds : Storm Event : It means rainfall event which produce more than 0.1…

Q: settling basin is designed based on a surface overflow rate that can achieve a removal efficiency of…

A: d1=0.05mm d2=0.1mm

Q: Question A circular primary clarifier processes an average flow of 5005 m³/d of municipal waste…

A: Average flow = 5005 m3/dOverflow rate = 35 m3/m2/dThe diameter of the clarifier is =?

Q: Rectangular Sedimentation tank is designed for a new water treatment Wth design flow of J0 million…

A: Given data in question Discharge Overflow rate Length width ratio To find out Design the tank…

Q: Design a circular radial-flow sedimentation tank for a town with a projected population of 45,000.…

A: Populations= 45000 Waste water flow rate = 400 L/capita-d or 0.4 m3/capita-d Detention time (t) = 2…

Q: What is the detention time for a clarifier with a diameter of 24 m and water depth of 2.3 m for a…

Q: The chloride concentration in a brine waste flow of 6.3 L/s is 15000 mg/L. The river flow upstream…

A: step 1-

Q: Design a wastewater treatment primary clarifier for an average flow rate of 1.10 MGD, and a peak…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: bread and breakfast facility is considering an ion exchange resī ndwater. The flow required is 1000…

A: Efficiency of the reaction :E=325-50325=85.62%so,

Q: Southside Water Treatment Plant in Tyler, TX Evaluate the primary and secondary sedimentation tanks…

A: Sedimentation tank- is the tank that is used to remove impurity from wastewater by using gravity…

Q: A water treatment plant has an average influent flow rate of 15 MGD and peak flow rate of 25 MGD…

Q: A primary wastewater treatment uses centrifugation for dewatering of primary sedimentation sludge.…

A: Given :- Average daily flow to the treatment plant = 5000 m3/d Total suspended solids in raw waste…

Q: Q2: A column analysis for an activated sludge su MLSS Conc (mg/l) Settling velocity m/h 1000 2.8…

Q: Please solve all the choices

A: 1) surface area of tank = 2000 ft^2 Max flow rate: 500 * 2000 = 1000000 GPD = 1 MGD 2) MCRT =…

Q: 12.50 Determine the activated-sludge aeration volume required to treat 2.64 mgd with a BOD of 120…

A: The objective of the question is to determine the aeration volume, MLSS, sludge age, and the…

Q: 2. The average wastewater flow from a community of 20,000 is 125 gpcd. The 5 day, 20 deg C BOD is…

A: Population = 20000To Find:1) Settling tank surface area2) Settling tank diameter3) BOD removal in…

Q: Alum at a rate of 20 mg/l is added to an incoming discharge of 0.5 m3/s which carries 250 mg/1 of…

A: 1. Alum added at a rate of 20 mg/l.2. Incoming discharge: 0.5 m³/s3. Incoming discharge carries 250…

Concept explainers

Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.

Question

A water treatment plant operates two circular sedimentation basins in parallel to remove
suspended solids and treats a total flow of 12 mgd. Each basin is center-fed (i.e., water comes
into the reactor in the middle and radiates toward the outside of the basin) and the solid-free water
exits the reactor over weirs that are located 2 feet within the basin perimeter. Each tank has a
diameter of 65 feet with a water depth of 12 feet.
2.
What is the detention time in each clarifier (in minutes)?
b. What is the overflow rate for each clarifier (in ft/ft?-d and gpd/ft?)?
What is the weir loading rate for each clarifier (in ft'/ft-d and gpd/ft)?
d. Calculate the values for parts a-c if only one clarifier is in service.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Trending now

This is a popular solution!

Step by step

Solved in 5 steps with 11 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

2. The average wastewater flow from a community of 20,000 is 125 gpcd. The 5 day, 20 deg C BOD is 250 mg/L. The suspended solids content is 300 mg/L. A final plant effluent of 50 mg/L of BOD is to be achieved through the use of two sets of identical settling tanks and trickling filters operating in parallel. The settling tanks are to be designed to a standard of 1000 gpd/^2. The trickling filters are to be 6^ deep and operated at an organic loading of 55 lbm/1000^3 d. There is no recirculalon. (1) What settling tank surface area is required? In ft^2 (2) What settling tank diameter is required? In ft (3) Estimate the BOD removal in the settling tanks? In percent % (4) What is the trickling filter diameter? In ft domeved Ward
The influent suspended solids concentration to a primary settling (clarifier) tank is 300 mg/L. The average flow rate is 0.037 m3/s. If the suspended solids removal efficiency is 65 percent, how many kilograms of suspended solids are removed in the primary settling tank each day?
Design a sedimentation basin for a water treatment plant with the following specifications assuming it is required to supply a city with a population of 50,000 people: Rectangular or square basin • Depth: 7-18 ft ● . • Width: 10-50 ft Detention time: 4-8 hours Flow through velocity: <0.55 ft/min Overflow rate: 400-1,100 gal/day-ft² Draw a figure to show calculated dimensions. You may consider to use SI units in calculations. ● ● Hint: Overflow rate is Flow/Surface Area; Detention time is Volume of tank/Flow rate; and Depth= Volume/Surface area
A rectangular settling basin has a depth of 3 m, a length of 40 m and a width of 6 m. The water treated in the basin has a flow rate of 500 L/s and contains 50 mg/L of type a particles, 100 mg/L of type b particles and 180 mg/L of type c particles (particle type letters refer to the particles listed in problem 1). What is the suspended solids concentration in the effluent from the settling basin? Determine the overall percent removal of suspended solids from the water achieved by the settling basin.