Design a circular type sedimentation tank: A city must treat about 20,000 m^3/d of water and analysis indicate that an overflow rate of 25m/d will produce satisfactory removal at a depth of 5.0m. Determine the size of required settling tank.

Design a circular type sedimentation tank: A city must treat about 20,000 m^3/d of water and analysis indicate that an overflow rate of 25m/d will produce satisfactory removal at a depth of 5.0m. Determine the size of required settling tank.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter11: Ground Improvement

Section: Chapter Questions

Problem 11.8P

See similar textbooks

Related questions

Q: (c) As an engineer, you have to design a sedimentation tank for Berjaya City residential area with a…

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: Calculate the degree of consolidation of a 6 m thick double drained clay layer after 4862 days since…

Q: The specific gravity of the ground soil of an earth dam is Gs=2.58, the void ratio e=0.84, and the…

A: The formula to calculate the critical hydraulic gradient is given by, ic=Gs-11+e

Q: The town of Parit Raja has an existing horizontal-flow sedimentation tank with an overflow rate of…

A: Finding out percentage of particles removable.

Q: calculate the retardation factor using equation 1 + Pb./Q Kd = R , Assume the aquifer has an…

Q: A water treatment plant has a horizontal-flow sedimentation tank with an overflow rate of 30 m3…

Q: 1a. Calculate the terminal settling velocity of a 15 μm clay mineral particle with a density of 2.65…

A: Given : d = 15 μm ρp = 2.65 g / cm3 T = 20 ˚C To find : Vs = Settling velocity Solution : According…

Q: Calculate the value of actual seepage velocity at point C if the length of flow path at C is 2 m and…

A: Given: Length of flow path, L = 2 m Void ratio, e = 0.6 Permeability constant, k = 0.005 cm/min In…

Q: Figure 1. shows a barrier system consisting of a primary leachate collection system, a primary clay…

Q: A pumping test was carried out in a soil bed of thickness 15 m and the following measurements were…

Q: 3-A circular radial-flow tank has a settling zone depth of 3 m and a settling zone area of 500 m2.…

A: Given: The depth of the settling zone is 3 m. The area of the settling zone is 500 m2. The settling…

Q: In a permeability test conducted on a soil with e = 0.50 the discharge velocity was found to be 2.4…

Q: falling head permeability test was run on a soil sample 12.4 cm. in diameter and 14.9 cm. long. The…

Q: Step 1 LiW: H = 10:1:3 Valome lokx1xX 3と %3D = 3ox3m3 8= 1080 mm |br Detention thme ='15 mmute aj…

Q: pumping test was carried out in a soil bed of thickness 15 m and the following measurements were…

A: From the given data:- Soil bed thickness=15 mRate of pumping =10.6×10-3 m3/sDraw down in the…

Q: ttling in air at 293 K and 101.3 kPa of small oil droplets 100 μm in diameter. The density of the…

A: We know :Terminal velocity is :v=29ρp-ρfμgR2ρp=density of particles=900kgm3ρf=density of…

Q: Determine the coefficient of permeability in mm/s from the following data:Length of sand sample = 25…

Q: A sedimentation tank 6m wide, 15m long and 3m water depth is treating 2MLD of water. The surface…

A: Since, the question number to be solved is not specified, the solution for Question 1 is as follows:…

Q: The diagram of a sand drain is shown in Figures 16.21 and 16.22. Given: rw = 0.25 m, rs = 0.35 m, de…

A: Solution: a) Calculate degree of consolidation of sand drains using formula; Tv=π4Uv1002Here, Tv=…

Q: A rectangular sedimentation tank has dimensional proportions of 10:1:3 (L:W:H). If sedimentation is…

Q: Field Permeability Testing: Calculate the permeability of the soil from a confined aquifer given the…

Q: For a variable head permeability test. the following values are given: length of specimen = 380 mm,…

A: Given data : Initial head (h1)=640 mmFinal head (h2)=310 mmCoefficient of permeability (K)=2.92×10-3…

Q: A detention pond is designed to achieve 100% removal of 0.1 mm fine sand particles at the design…

A: Since a detention pond is designed to achieve 100% removal of 0.1 mm fine sand particles at the…

Q: Calculate the (i) sedimentation volume and respective interpretation for each flocculated and…

A: Given Data:Ultimate Volume of sediment (Vu)=10mlOrginal Volume of Sediment(Vo) = 08mlDeflocated…

Q: Design a rectangular sedimentation tank (L/W is 4) for a max weekly flow with a hydraulic retention…

Q: A treatment plant has a horizontal flow sedimentation basin with a depth of 4 m, a width of 6 m, a…

A: Hi there!! since you have asked multiple questions, we will solve the first question for you. If you…

Q: 1. A falling- head permeability test was run on a soil sample 9.6cm in diameter and 10cm long. The…

A: K = 5 x 10-6 cm/sec Soil sample diameter = 9.6 cm Length of soil sample = 10 cm Head difference = 90…

Q: 49. A pumping test was made in a sand layer extending to a depth of 16m. The initial groundwater…

A: Given data in question Depth of layer Depth of water table Drawdowns Discharge Radial distances…

Q: Discuss the role of different zones in a sedimentation tank with the help of a figure

A: Diagram of sedimentation tank and different zones is shown below

Q: QUESTION 4 A settling analysis is run on a Type 1 suspension in a laboratory column with a port of…

A: Given- Type 1 suspension overflow = 440 m2/m.day

Q: Q-18: A site adjacent to a river is considered for the location of a municipal waste water treatment…

Q: Show calculation on how to determine the average coefficient of permeability of the sand sample at…

A: Solution: Given Data Length of specimen=127 mmArea of specimen=7854 mm2Specific gravity of…

Q: During the design storm, a detention basin receives a flow rate of 0.2 m3/s. Assuming a sediment…

Q: Given in a soil with sorptivity of S = 1800 mm/hr-1/2 and gravity term of A = -500 mm/hr. Determine…

Q: A water treatment plant processes 21,000 cubic meters of water per day. Assume two types of…

A: Given:- The capacity of the water treatment plant = 21,000 m3/day The dimensions of the rectangular…

Q: Hollow has an existing horizontal-flow sedimentation tank with an overflow rate of 17 m3/d · m2.…

A: Introduction- A sedimentation tank, also known as a settling tank or filtration, is an element of a…

Q: Problem No. 3 A sedimentation tank with 600 m surface area is designed to treat 1100 m'/day of wat…

A: Introduction The sedimentation tank, commonly known as a settling tank or filtration tank, is an…

Q: An earth dam require a total of 150 cubic meter of soil compacted with a bulk unit weight of…

A: Given: The total volume required is 150 m3. The bulk unit weight is 18.5 kN/m3. The moisture content…

Q: QUESTION 4 A settling analysis is run on a Type 1 suspension in a laboratory column with a port of…

A: Solution; Given data; Type 1 suspension overflow=440 m2/m.day

Q: A 15 μm clay mineral particle has terminal settling velocity of 0.202 mm with a density of 2.65 g /…

Q: Problem 5.10. A rill channel is observed at two locations during a storm, 20 and 60 m from the top…

Q: Given a settling tank operating at 80% TSS removal efficiency, an inflow of 0.5 m3/s, and an…

A: Given, TSS removal efficiency,η = 80% Inflow,Qi = 0.5 m3/s Influent concentration,Xi= 100 mg/L TSS…

Q: A flow net below a dam consists of 24 equipotential drops and 7 flow channels. The difference…

Q: Q3: A 0.2 m in diameter sand drains are spaced on 3 m centers in a clay soil "square patterns".…

A: From given data it is required to calculate the time required by a clay layer to undergo 80 percent…

Q: Determine the area of a clarifier required for solids thickening for the below parameters. The…

A: we need to find the area of clariier. please check the answer below.

Q: What is the largest size of a spherical sand grain that the Stokes’ Law can be used to calculate its…

Q: Explain shortly how you would calculate the sedimentation rate of a particle in a centrifugal field.…

A: Solution: The rate of sedimentation is proportional to the difference in the density among the…

Q: A recently completed fill was 6m thick and it's initial average void ratio was 1.0. The fill was…

A: step 1-

Question

please be fast

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

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 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

The town of Parit Raja has an existing horizontal-flow sedimentation tank with an overflow rate of 18.5 m3 /d.m2 . It is required to remove particles that have settling velocities of 0.15 mm/s, 0.18 mm/s, and 0.5 mm/s. Determine the percentage of removal that should be expected for each particle in an ideal sedimentation tank.
A rectangular sedimentation tank has dimensional proportions of 10:1:3 (L:W:H). If sedimentation is done in batch, the tank can cater 1080 m^3 in one hour, while the detention time for a continuous settling is 15 minutes on the same tank. a) During batch sedimentation, how many batches is done in an hour? b) Solve the dimensions of the tank. c) If the critical settling velocity is 0.003m/s, how many percent of the solids will be settled down? d) If the influent has a solids concentration of 230 mg/L and the effluent is 90% of the influent, compute the solids concentrations both at the underflow and the overflow. e) Determine the filter area if the filter loading rate is 2.3 gal/d.ft. ANSWER D AND E I PROVIDED SOME INFORMATION THANK YOU!
A rectangular sedimentation tank has dimensional proportions of 10:1:3 (L:W:H). If sedimentation is done in batch, the tank can cater 1080 m^3 in one hour, while the detention time for a continuous settling is 15 minutes on the same tank. a) During batch sedimentation, how many batches is done in an hour? b) Solve the dimensions of the tank. c) If the critical settling velocity is 0.003m/s, how many percent of the solids will be settled down? d) If the influent has a solids concentration of 230 mg/L and the effluent is 90% of the influent, compute the solids concentrations both at the underflow and the overflow. e) Determine the filter area if the filter loading rate is 2.3 gal/d.ft.
Design a rectangular sedimentation tank (L/W is 4) for a max weekly flow with a hydraulic retention time of 3 hours, and a surface overflow rate of 50 m3/m2.d for a town with a population of 250,000 and average daily water demand is 450 L/capita. The monthly, weekly, and daily factors are 1.2, 1.4, and 1.8, respectively. The area of each tank should be limited to 8000 m2. Determine the tank dimensions (L,W, and D) and the number of tanks needed. What is the horizontal flow-through velocity in the rectangular basin
Determine the overflow rate, hydraulic detention time and the size of spherical sand particle (2.6g/cm3) which is 100% removed by 10 primary sedimentation tanks that operate in parallel to treat a flow of 0.7 m3/s with the following dimensions Length = 70m, width = 12 m and depth=3m. Assume 20°C for the water temperature.
For a flocculent suspension, determine the removal efficiency for a basin 3.0 m deep with an overflow rate of 0.05 m/min using the laboratory settling data presented in the following table.
A water treatment plant has a horizontal-flow sedimentation tank with an overflow rate of 30 m3 /d.m2 and wishes to remove particles that have settling velocities of 0.2 mm/s. Calculate the percentage of removal that should be expected for each particle in the ideal sedimentation tank.
A column analysis of a flocculating suspension is run in the apparatus shown below. Theinitial solids concentration is 320 mg/L. The resulting matrix is shown below. What willbe the overall removal efficiency of a settling basin which is 2.5 m deep with a detentiontime of 2 hr?
If the settling velocity of a particle is 0.70 cm/s and the overflow rate of a horizontal flow clarifier is 0.8 cm/s, what percent of the particles are retained in the clarifier?
Q#4 : For the concrete Dam shown in figure, determine the total average seepage for the given permeable strata by drawing Flow Net. The detail dimensions are given on the figure. The head of water on upstream side is 6ft and on downstream side is 1ft. Assume of Nf= 3, Nd= 6 and rectangular flow elements. Use MSpaint or graph paper
two sedimentation tanks operate in parallel. The combined flow to the two tanks is .1 m^3/s. the depth of each tank is 2 m and each has a detention time of 4 h. what is the surface area of each tank and what is the overflow rate of each tank in m^3/d*m^2? Please don't provide handwritten solution
Q- If a soil has a voids ratio of 0.68 and water percolating through it has a discharge velocity of 1.35*10-2cm/s. Calculate its seepage velocity.