The following data were obtained in a laboratory study conducted for the determination of the overallvolumetric mass transfer coefficient in a packed bed air stripping unit with a diameter of 1 m and a heightof 4m equipped with 4 equidistant sampling ports along its height. Contaminated groundwater containingan initial TCE concentration of 230 ug/1 was fed to the stripping column at 1 m³/m²-min. The air to liquidratio was 100. Based on the data determine Ka (s'). Henry's constant for TCE is 0.428.Depth, mTCE, µg/l234230140805030

Answered: The following data were obtained in a…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Water analysis was carried out for solid analysis. The test was performed and the following information collected. Mass of empty dish = 51.5494 g; Mass of dish + Sample = 109.5 g; Mass of dish + dry solids =51.587 g; Mass of dish + ignited solid =51.541 g; Mass of empty filter = 0.1154 g; Mass of filter after drying = 0.1241 g; Mass of filter at ignition = 0.1160 g; Volume of sample =25 mL Compute the concentration of total solids, total volatile and fixed solids, suspended, volatile suspended solids and fixed suspended solids.
A falling head permeability test was run on a soil sample 9.60 cm in diameter and 10 cm long. The head at the start was 70 cm. The coefficient of permeability of the soil was found to be 5 x 10-6 cm/s. The diameter of the standpipe was 1 cm. What is the rate of flow at the start of the test? Select the correct response: 6.08 cm/hr 11.73 cm/hr 15.83 cm3/hr 9.12 cm/hr
PART A Bacteria can be divided according to the dissolved oxygen utilization pattern. Differentiate and explain the three main categories of bacteria involved. 1. A BOD analysis was conducted on a raw sewage sample. 300 mL of sample was placed in a 300 mL BOD bottle, and incubated for 5 days at 20°C. Based on your knowledge on the sample characteristic and BOD procedure, explain about the validity and the outcome of the analysis. 2. 3. Explain why oxygen depletion occurs when organic waste is disposed directly in the lake. And mention ONE adverse impact of oxygen depletion.
-1 (a) (b) The results shown in Table QA1 were obtained by a group of students during a laboratory experiment using a standard Proctor test on granular material. Table QA1 Bulk density Water content (Mg/m³) (%) 2 5 6 8 9 1.91 2.24 2.31 1.99 1.4 Using the data in Table QA1, plot the corresponding compaction curve and determine the air content corresponding to the optimum water content and maximum dry density for this soil. Is the air content within the range normally specified when at optimum values? (Note you may Assume: Gs = 2.7 and pw = 1 Mg/m³) Explain why and when it is essential to determine soil density on construction sites.
Enter T next to the following true statements and F next to the false statements. Settling of suspended solids in secondary clarifiers is typical of Type II sedimentation. Thickening prior to digestion is common in many wastewater treatment plants because it reduces the size needed for the digester. Based on a temperature of 30°C, a design mean cell residenee time of about 20 days would be reasonable for a completely-mixed anaerobic digester without recycle. A volatile suspended solid is defined as an organic solid that can be oxidized to CO2 (g) at 250°C. The theoretical yield coefficient can be estimated from the observed yield coefficient if the specific growth rate constant is known. Air flotation would likely be more efficient for thickening waste activated sludge than primary sludge, while the opposite would be true for gravity thickening. The net mass of cells produced in the activated sludge process equals the total cell mass synthesized minus the cell mass wasted as waste…
Five-days BOD of a 10% diluted sample having Do = 6.7 mg/l, Ds = 2 mg/l and consumption of oxygen in blank = 0.5 mg/l, will be
asap
2,13. Determine the suspcnded solids and the percent volatule matter in a sohds sample based on the following data: Sample size - 25 mL. Tare mass of filter 1.5325g Tare mass of filter plus retained solids-1.5415 g. Tare mass of filter plus retained ash-1.5378g
solve question 10 please
What diameter would a circular clarifier have to be to remove 50 μm particles with 75% efficiency from a 4 MGD (million gallon per day) flow? Assume the particle specific gravity is 1.5 and the temperature is 10°C. Answer: 18 m
Five-days BOD of a 10% diluted sample having Do = 6.7 mg/l, D = 2 mg/l and consumption of oxygen in blank = 0.5 mg/l, will be A 22 mg/l B 42 mg/l c 62 mg/l D 82 mg/l
6

SEE MORE QUESTIONS

Recommended textbooks for you

Structural Analysis

Civil Engineering

ISBN:

9781337630931

Author:

KASSIMALI, Aslam.

Publisher:

Cengage,

Structural Analysis (10th Edition)

Civil Engineering

ISBN:

9780134610672

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Principles of Foundation Engineering (MindTap Cou…

Civil Engineering

ISBN:

9781337705028

Author:

Braja M. Das, Nagaratnam Sivakugan

Publisher:

Cengage Learning

Structural Analysis

Civil Engineering

ISBN:

9781337630931

Author:

KASSIMALI, Aslam.

Publisher:

Cengage,

Structural Analysis (10th Edition)

Civil Engineering

ISBN:

9780134610672

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Principles of Foundation Engineering (MindTap Cou…

Civil Engineering

ISBN:

9781337705028

Author:

Braja M. Das, Nagaratnam Sivakugan

Publisher:

Cengage Learning

Fundamentals of Structural Analysis

Civil Engineering

ISBN:

9780073398006

Author:

Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning

Publisher:

McGraw-Hill Education

Sustainable Energy

Civil Engineering

ISBN:

9781337551663

Author:

DUNLAP, Richard A.

Publisher:

Cengage,

Traffic and Highway Engineering

Civil Engineering

ISBN:

9781305156241

Author:

Garber, Nicholas J.

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS