A column analysis of a flocculating suspension is shown below. The initial solids concentration is 200 mg/L. The resulting matrix is given in Table 3. Table 3: Concentrated solids measured (mg/L) for a flocculent settlement column test. Time of sampling (minutes) Depth (m) 0.5 1 1.5 2 2.5 3 30 135 181 202 215 218 227 60 85 123 149 167 177 189 90 53 92 120 133 143 157 120 40 64 95 111 121 134 150 31 54 71 92 105 115 (a). Calculate the removal fraction at each depth and time. 180 25 45 55 67 83 97 (b). Based on the isoremoval flocculent sedimentation diagram given in Appendix 2, calculate the overall removal efficiency of a settling basin which is 3 meters deep with a detention time of 1 hour and 45 minutes.

A column analysis of a flocculating suspension is shown below. The initial solids concentration is 200 mg/L. The resulting matrix is given in Table 3. Table 3: Concentrated solids measured (mg/L) for a flocculent settlement column test. Time of sampling (minutes) Depth (m) 0.5 1 1.5 2 2.5 3 30 135 181 202 215 218 227 60 85 123 149 167 177 189 90 53 92 120 133 143 157 120 40 64 95 111 121 134 150 31 54 71 92 105 115 (a). Calculate the removal fraction at each depth and time. 180 25 45 55 67 83 97 (b). Based on the isoremoval flocculent sedimentation diagram given in Appendix 2, calculate the overall removal efficiency of a settling basin which is 3 meters deep with a detention time of 1 hour and 45 minutes.

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: The data from standard and modified proctor test on a soil sample (density of solids: 2680 kg/m3 )…

A: Compaction is the procedure of reducing the air void present in the soil that is dense the soil.…

Q: From the table shows a summary of plastic limit test. Compute the plasticity limit. Plastic Limit…

Q: a. Determine the percent finer than each sieve and plot a grain-size distribution curve. b.…

Q: In a constant head permeability test the coefficient of permeability, k, was found to be 2.1 x 10-3…

Q: 1. Determine the effective size (d10, in mm) and the uniformity coefficient (UC) for the sand filter…

A: A sieve analysis result is given, we need to find out the effective size and uniformity coefficient

Q: U.S Sieve No Opening Mass of soil retained (g) (mm) 4 10 20 40 60 100 200 Pan 4.75 2.00 0.85 0.425…

A: Given, Here is the result of sieve analysis of a soil. Sieve analysis is performed to classify soils…

Q: Following the sieve analysis and the specific gravity of "SAND 1", a hydrometer test was performed…

A: The hydrometer test is used to determine the distribution of soil particle sizes that are smaller…

Q: Q1: The results of a standard Proctor test are given in the table. The volume of the proctor mold…

A: Standard proctor test is a laboratory method used to determine the moisture content at which soil…

Q: In a liquid limit test on a fine-grained soil, using the Casagrande apparatus, the following results…

Q: Table shows a summary of a liquid limit test.

A: Solution:

Q: A sieve analysis was conducted on a The results are provided in the table. . .gram sample of a food…

A: Sieve analysis is conducted on 38.86 grams

Q: , g 19.44 18.78 18.75 22.10 Weight of container, g 12.74 13.24 13.20 13.27 Weight of…

Q: A core sample has a cross sectional area of 1 cm2 and a length of 5 cm. Water with a viscosity of 1…

A: Given dataCross sectional Area=A=1 cm2Length(L)=5 cmViscosity=V=1 cp=1×10-7Ns/cm2Q1=20.4300=0.0680…

Q: 1/30 1/30 3.88 3.87 1/30 3.87 1/30 3.77 . a. Determine the moist unit weight (ymoist) and dry unit…

Q: 1. The data in the table below were obtained for the determination of coefficient of permeability by…

Q: The data from a standard Proctor test are shown in the table below. a. Determine the maximum dry…

A: Diameter of mould (d) = 101.4 mm height of mould = 116.7 mm mass of mould = 4196.50 gm specific…

Q: Given the laboratory results of the Atterberg Limits Test in the following figure, plot the water…

A: Answer Calculation of Liquid limit Liquid limit is considered the water content obtained for 25…

Q: There are four soil samples used for a laboratory research study. After performing the sieve…

A: Grain size analysis is a common laboratory test used in the field of soil mechanics. The goal of the…

Q: 3 The below results are obtained from a sieve analysis done on a sample with dry mass of 1550 g. The…

A: The given data is shown below:

Q: In a liquid limit test, using cone penetrometer, the following readings are recorded. Plastic Limit…

Q: 3.8 Following CT scanning, data are available for a chalk core plug from the North Sea area. The…

Q: The results of Liquid Limit and Plastic Limit tests are shown in the following figure. Which of the…

Q: Blows Moisture Content,%

Q: The following table was obtained from a standard proctor test. Fill-up the table a sure to provide…

A: Weight=mass9.811000 KnUNit weight=WeightVolumeDry unit weight=UNit weight1+moisture100 No Mass of…

Q: The following table shows the result of liquid and plastic limit tests. A. Liquid Limit Test Number…

A: The given data is shown below:

Q: 2. A liquid limit test, conducted on a soil sample in the cup device, gave the following results:…

Q: A sample in variable head permeameter with 80 mm in diameter and 180 mm height can estimate the…

A: solution diameter of sample d=80mmso Area A=π4×802=5026.55 mm2length of the sampel…

Q: PART II: A RBERG PROBLEM A The following data shows the results of the Liquid limit and Plastic…

A: Given- Table of liquid limit and plastic limit test and natural water content

Q: The laboratory test data for a standard Proctor test are given below. Volume of Moisture content…

Q: The lab methods discussed in class are not the only means of measuring specific gravity- one can…

A: Given SSD WEIGHT= 618 g

Q: 1. Given the results of an Atterberg limit test. Complete the test report which will include filling…

Q: Analyze each statement (A and B) whether they are true or false. Use the choices below in answering…

A: Statement B is true As in sedimentation analysis sand have more weight it will settle first follow…

Q: The following are the results of a sieve analysis: a. Determine the percent finer than each sieve…

A: Given U.S. sieve no Mass of soil retained (g) 4 0 10 44 20 56 40 82 60 51 80 106…

Q: the velocity distribution for the suspension

A: Since we answer three sub-parts at a time so will answer the first three sub-parts .Please re-submit…

Q: 2.61. The following MPN test results were obtained for three water samples. Determine the MPN/100 mL…

Q: A liquid limit test conducted on a soil sample in the cup device gave the following results: Test…

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

Q: SHOW COMPLTE SOLUTION AND THE ANSWERS SHOULD BE IN 4 DECIMAL PLACES. I'LL RATE, TY Given the…

A: Given data: Liquid Limit: Plastic Limit and Natural water content:

Q: A liquid limit test conducted on a soil sample in the cup device gave the following results: | 27 N…

Q: 2. The following data were obtained from the liquid and plastic limit tests for a soil: Liquid Limit…

Q: A Standard Proctor Test was completed according to Method A described in Chapter 12. The following…

Q: You are given three soil samples. Soil sample 1 is silty sand. Soil sample 2 is clay. Soil sample 3…

Q: 5. From the table shows a summary of a liquid limit and plastic limit test. A. LIQUID LIMIT Test…

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

Q: A liquid limit test conducted on a soil sample in the cup device gave the following results: N 10 19…

Q: A sample was shaken through a nest of sieves and the results are obtained. Draw the particle size…

A: Following table is given for the sieve analysis test: From above table it is required to draw…

Q: A pycnometer test yielded following data weight of empty pycnometer (W₁) = 400 gm, weight of…

Q: one is finer: Soil A or Soil C?

Concept explainers

Hydrogen Energy

Energy is a quantity that cannot be defined, its existence can only be felt. In simple language, if a system possesses energy, it can do a specific kind of work. There are many forms of energy sources which people can use to obtain work. Solar energy, tidal energy, hydroelectric energy, geothermal energy, wind energy are some of the renewable energy sources which are primarily used for the production of electricity.

Question

A column analysis of a flocculating suspension is shown below. The initial
solids concentration is 200 mg/L. The resulting matrix is given in Table 3.
Table 3: Concentrated solids measured (mg/L) for a flocculent settlement column
test.
Time of sampling (minutes)
Depth
(m)
0.5
1
1.5
2
2.5
3
(a).
30
135
181
202
215
218
227
60
85
123
149
U
167
177
189
80%
90
53
92
120
133
143
157
Calculate the removal fraction at each depth and time.
120
40
64
95
111
121
134
70%
150
31
54
71
(b). Based on the isoremoval flocculent sedimentation diagram given in
Appendix 2, calculate the overall removal efficiency of a settling basin
which is 3 meters deep with a detention time of 1 hour and 45 minutes.
1.
92
105
115
Scanned with AnyScanner
O
L
60%
2.5
50%
40%
-20%
51
180
25
45
55
67
83
97
30%
10% S
1₂
150
120
06
09
O
3
Time. min

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1: Introducing given data

VIEW

Step 2: Formula for removal fraction

VIEW

Step 3: Calculate the removal fraction at each depth and time

VIEW

Step 4: Plot the isoremoval lines using interpolation

VIEW

Step 5: Draw isoremoval lines

VIEW

Step 6: Calculate depths for t0 = 105 min line

VIEW

Step 7: Table

VIEW

Step 8: Calculate overall removal efficiency (R)

VIEW

Solution

VIEW

Step by step

Solved in 9 steps with 20 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

A Standard Proctor Test was completed according to Method A described in Chapter 12. The following laboratory data was obtained: Mass of mold = Mass of moist specimen and mold = Volume of compaction mold = Mass of container= 51.5g Mass of container plus moist soil= 261.85g Mass of container plus oven-dried soil= 231.83g Determine the Moisture content, w. (expressed as a percentage, 1 decimal place) Your Answer: 1.98 kg 3.718 kg 0.0009438m3
A constant-head permeability test is performed in a laboratory where the soil sample is 25 cm in length and 6 cm2 in cross-section. The height of the water is maintained at 2 ft at the inflow end and 6 in. at the outlet end. The quantity of water flowing through the sample is 200 ml in 2 minutes. (a) Make a sketch of the described conditions. (b) What is the coefficient of permeability? ***Please include all the units and conversions.
From the table shows a summary of a liquid limit and plastic limit test. Compute the plastic limit. Liquid Limit Test Test Number 1 3 4 Number of 39 30 23 |12 Blows Weight of Wet Soil + 22.24 21.19 21.27 26.12 Container Weight of Dry Soil + Container 20.10 19.28 19.25 22.60 Weight of Container 12.74 13.24 13.06 13.27 60 2. 6.0
2.3 The following are the results of a sieve analysis: Mass of soil retained (g) U.S. sieve no. 4 10 20 40 60 100 200 Pan 28 42 48 128 221 86 40 24 ⒸCengage Leaming 2014 a. Determine the percent finer than each sieve and plot a grain-size distribution curve. b. Determine D10, D30, and D60 from the grain-size distribution curve. c. Calculate the uniformity coefficient, C₁- d. Calculate the coefficient of gradation, C.
The results from a sieve analysis are shown below. Plot the grain size distribution data using a computer on a semi-log plot (% finer on y-axis vs log of particle size in mm on the x-axis – you can download the plot from the lab 2 material). You can draw the curve through the points by hand. Show how you obtained the values you plotted. Sieve Number Mass of soil retained (g) 4 0 10 38 20 62 40 90 60 150 70 112 100 220 200 56 Pan 10
Atterberg's limits Problem 4.3 Results from liquid and plastic limit tests conducted on a soil are given below. Liquid limit tests: Number of Moisture blows, N content (%) 13 33 18 27 29 22 Plastic limit tests: Weight of Can 20 g Weight of Can + Moist soil = Weigh of Can + Dry soil 56.2 g 48.4 g a. Draw the flow curve and obtain the liquid limit. b. Calculate Plastic Limit b. What is the plasticity index of the soil?
The total mass of a sample is 51.5 g, the total volume is 28.3 cm3, the water content is 16.5%, and the relative density (relative density of the solids) is 2.70. Find the total density (ρ), dry densoty (ρD), and the void ratio (e). Enter your answers in the spaces provided below. keep your answers to two decimal places.
The total mass of a sample is 102.40 g, the total volume is 48.00 cm3, the water content is 20.00%, and the relative density (relative density of the solids) is 3.20. Find the total density (ρ), dry densoty (ρD), and the void ratio (e). Enter your answers in the spaces provided below. keep your answers to two decimal places.
The results of a Standard Proctor test are given in the following table. Moist Weight of Wet Sol Moisture Content in the mold (Ib) Trial (%) 26 4.08 28 4.12 30 4 4,18 32 Determine: 1. Maximum dry unit weight in Ib/ft^3 (4 decimal places) 2. Optimum water content in % (4 decimal places)
Problem (6) The laboratory test data for a standard Proctor test are given below. Volume of Proctor mold Mass of wet soil in the mold (kg) Moisture conient (%) (ст3) 943.3 943.3 1.65 10 1.75 12 943.3 1.83 1.81 14 943.3 16 943.3 1.76 18 943.3 1.70 20 a) Find the maximum dry unit weight and optimum moisture content. b) Calculate the zero-air-void unit weights for a soil with G, =2.68 at moisture content of 5, 10, 15, 20, and 25%. Plot a graph of Yrav versus moisture content.
Problem 4: The following are the results of a sieve analysis. a. Determine the percent finer than each sieve and plot a grain-size distribution curve. b. Determine D10, D30, D60, for the soil. c. Calculate the uniformity coefficient Cu. d. Calculate the coefficient of gradation Cc. U.S. Sieve N 4 10 20 40 60 100 200 Pan U.S. Sieve N Mass of Soil Retained (g) Problem 5: Repeat problem 4 with the following data. 4 6 10 20 40 60 100 200 Pan 0 18.5 53.2 90.5 81.8 92.2 58.5 26.5 Mass of Soil Retained (g) 0 0 0 9.1 249.4 179.8 22.7 15.5 23.5
4. The results of liquid limit testing on 3 samples of a soil are shown below. sample 1. 2 3 mass (g) 20 mass mass (g) emply can (M.) wet soil + can (M.) dry soil + can (M) moisture content: w (%) Number of cranks 20 20 35 35 28.82 36 28.15 30.38 4 10 30 Calculate the moisture content of cach of the 3 samples. Show your calculations below and then put your answers in the chart above. M,- M, м, - м, x100%