particulate sample in an air stream is represented by the following weight percent distribution: 5micrometers, 10%; 10 micrometers, 20%, 40 micrometers, 40%, 70 micrometers, 20%; 100 micrometers, 10 percent. A cyclone seperator is employed on the basis of the following data: inlet width, 12 inches; effective turns, 4; inlet gas velocity, 20ft/s; particle density, 1.6 g/cm3; gas density, 0.074 lb/ft3, gas viscosity, 0.045 lb/ft hr. Estimate the percentage of the total weight removed in the cyclone. b) If the

particulate sample in an air stream is represented by the following weight percent distribution: 5micrometers, 10%; 10 micrometers, 20%, 40 micrometers, 40%, 70 micrometers, 20%; 100 micrometers, 10 percent. A cyclone seperator is employed on the basis of the following data: inlet width, 12 inches; effective turns, 4; inlet gas velocity, 20ft/s; particle density, 1.6 g/cm3; gas density, 0.074 lb/ft3, gas viscosity, 0.045 lb/ft hr. Estimate the percentage of the total weight removed in the cyclone. b) If the

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter5: Separation Processes

Section: Chapter Questions

Problem 5.32P

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Table 1 shows the result of the sieve analysis for the material of asphalt concrete (AC) mixture. Analyze the result of the sieve analysis by plotting the gradation curve of the sample. Conclude either the sample that been sieve is fulfill the requirement or not? Q4. Table 1 Sieve size (mm) Mass retained (g) Gradation limit for AC 14 20.0 0.00 100 14.0 69.60 90- 100 10.0 296.10 76- 86 5.00 433.70 50 - 62 3.35 170.50 40 - 54 1.18 321.20 18 - 34 0.425 212.00 12 - 24 0.150 135.10 6- 14 0.075 49.30 4-8 PAN 72.80
In breakpoint chlorination test, it is found that the free/residual chlorine concentrations are as same as the corresponding chlorine dose added to the samples. How will the test data look like in a graphical form? Select all those are correct. The line will show the pick hump. The line slopes 45 degree. The line is parallel to the zero-demand line. The breakpoint will be clearly visible in the graph.
18. The results for sieve analysis is shown in the following table: Sieve No. 10 20 40 60 100 % Passing 69.3 59.1 48.3 38.5 28.4 19.8 4.5 Liquid Limit Plastic Limit Non-Plastic (NP) Non-Plastic (NP)
4) Solids analysis is one of the important parameters for assessing water quality. Use the following data for calculating total solids (TS), volatile solids (VS), dissolved solids (DS), total suspended solids (TSS), and total volatile suspended solids (TVSS) all in mg/1. A sample volume of 150 ml was used in performing all solids analysis: Tare mass of evaporating dish = 24.3520 g Mass of evaporating dish plus residue after evaporation @ 105 °C = 24.3970g Mass of evaporating dish plus residue after ignition @ 550 °C = 24.3850g Mass of Whatman filter and tare = 1.5103g Mass of Whatman filter and tare after drying @ 105 °C = 1.5439g Residue on Whatman filter and tare after ignition @ 550 °C = 1.5199g
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The following data is the result in performing the ASTM C128, Determine the Absorption Mass of Pycnometer Mass of pycnometer filled with water 250.00 1,160.00 Mass of SSD sample 900.00 Mass specimen and water Mass of oven-dried sample of pycnometer with 1,724.00 895.00 A None of the above B 0.56% 56% D 5.6%
A rectangular plate of aluminum with a specific gravity of 2.7 is floating between a mercury-water interface. Specific gravity of mercury is 13.56. 10.0 Determine the ratio of the depths of the portion of the plate submerged in water to that portion submerged in steel. a.) 0.16 c.) 0.25 e.) b.) 3.94 d.) 6.39 11.0 Determine the depth submerged in water if the portion submerged in mercury is 20 mm. c.) 5 mm d.) 3 mm a.) 128 mm e.) b.) 79 mm
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5. Determine which isotherm equation (linear, Freundlich or Langmuir) best fits the GAC adsorption test data. Also determine the corresponding coefficients along with their units. The liquid volume for the tests was 1.0 liter. Show your trails for the three cases. Mass of Adsorbent Equilibrium concentration of adsorbate in solution mg/1 0 0.00175 0.0175 0.175 0.875 5.90 5.72 4.85 3.26 2.33
Total suspended particulate matter concentration in ambient air is to be measured using a high- volume sampler. The filter used for this purpose had an initial dry weight of 9.787 g. The filter was mounted in the sampler and the initial air flow rate through the filter was set at 1.5 m³/min. Sampling continued for 24 hours. The airflow after 24 hours was measured to be 1.4 m³/min. The dry weight of the filter paper after 24 hours sampling was 10.283 g. Assuming a linear decline in the air flow rate during sampling, what is the 24 hour average TSP concentration in the ambient air(in 10-6 g/m³?
An air particulate control (APC) device has the theoretical efficiency/particle size relationship given in the Table below. Use the particulate size distribution data from Q1 above to calculate the overall removal efficiency of this APC. Size range (um) Efficiency (%) 0-2 10 2-4 25 4-7 45 7-10 70 10-15 85 15-25 95 25-40 97 40-60 98 >60 100