Solid Waste Engineering
3rd Edition
ISBN: 9781305635203
Author: Worrell, William A.
Publisher: Cengage Learning,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 5, Problem 5.15P
To determine
The curve showing the fraction of feed exiting as extract in a trommel screen versus the speed of the trommel.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A trapezoidal gutter is to be made from a tin by bending up the edges. If the tin has a width of 12 inches and to be folded into three equal parts, find the width across the top gives the maximum carrying capacity. Show detailed solution. (Draw the illustration of the given problem)
The nutural frequancy for the system is equal to
k
rigid uniform bar
of mass (m)
P
b
L
1
3kb2+PL
1 3kb2
mL?
2n
The answer is O
The Answer is
3kb²–3PL
2n V
None of All
mL?
The Answer is O
the answer is
3kb2+3PL
mL?
1
the Answer is
Hint #3: All of the material separated out by the magnet (extract) goes to the roll crusher. All of the
material separated out by the air classifier goes to the shredder.
4. Using your matrix with the chosen order of separation processes from #2, estimate the quantity
(mass/day) and purity of the 5 materials recovered (paper, steel, glass, aluminum, and plastics).
(Purity of paper was already determined in 2.) The quantity recovered for sale is what ends up in the
target extract only (paper separated by the air classifier only, for example).
5. Estimate the amount of waste from the MRF that must go to the landfill, as all materials are not
recovered. The waste that must go to the landfill is the waste that passes through the last
separation process, without being separated out (reject).
6. Estimate the critical speed of the trommel screen (2.75 m diameter).
7. Calculate the characteristic size of the shredder, assuming that it must produce a product such that
95% of the material passes…
Chapter 5 Solutions
Solid Waste Engineering
Ch. 5 - Prob. 5.1PCh. 5 - Prob. 5.2PCh. 5 - Prob. 5.3PCh. 5 - Prob. 5.4PCh. 5 - Prob. 5.5PCh. 5 - Prob. 5.6PCh. 5 - Prob. 5.7PCh. 5 - Prob. 5.8PCh. 5 - Prob. 5.9PCh. 5 - Prob. 5.10P
Ch. 5 - Prob. 5.11PCh. 5 - Prob. 5.12PCh. 5 - Prob. 5.13PCh. 5 - Two materials, A and B, are to be separated using...Ch. 5 - Prob. 5.15PCh. 5 - Prob. 5.16PCh. 5 - Prob. 5.17PCh. 5 - Prob. 5.18PCh. 5 - Prob. 5.19PCh. 5 - Prob. 5.20PCh. 5 - Prob. 5.21PCh. 5 - Prob. 5.22PCh. 5 - Prob. 5.23PCh. 5 - Prob. 5.24PCh. 5 - Prob. 5.25PCh. 5 - Prob. 5.26PCh. 5 - Prob. 5.27PCh. 5 - Prob. 5.28PCh. 5 - Which would separate a mixture of steel and...Ch. 5 - Prob. 5.30PCh. 5 - Prob. 5.31PCh. 5 - Prob. 5.32PCh. 5 - According to Figure 5-20, is ii possible to...Ch. 5 - using Figure 5-27, what is the advantage of the...
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
- Two materials, A and B, are to be separated using two unit operations, 1 and 2. The feed has 10 tons/h A and 4 tons/h B. The split (fraction of material rejected by each operation) is given in Table P5-14. a. Which sequence of operations, (l?2) or (2?1), will yield the greatest recovery of material A? b. What will be the purity of material A using that sequence? c. What will be the efficiency of separation for the entire process train with regard to material A using the Worrell-Stesed equation?arrow_forwardCalculate the ThOD of a 300 mg/L solution of CsH7O₂N.arrow_forward1. What is the value of DG? 2. What is the value of EG? 3. What is the value of DF?arrow_forward
- A steel block of size 300 mm X 150 mm X 100 mm subjected to load of 300 kN (tension) on 150 mm X 100 mm face, 500 kN (compression) on 300 mm X 150 mm face and 100 kN (tension) on 300 mm X 100 mm face. Determine change in volume if poisons ratio is 0.25, E = 2 X 10^5 MPaarrow_forwardCalculate the reaction Use 3 decimal places Base your calculation to the incomplete solutionarrow_forwardIn (Figure 1), k = 180 N/m. Figure 2 m -2 m D -3 m- wwwwww 1 of 1 Part A Determine the unstretched length of DB to hold the 40-kg crate in the position shown. Express your answer to three significant figures and include the appropriate units. 1 = O Ti Value Submit μA Provide Feedback Request Answer Unitsarrow_forward
- Mohr's circle is shown for a point in a physical object that is subjected to plane stress. Each grid square is 880 psi in size. (a) Determine the stresses Ox, Øy, and the magnitude of Txy and show them on a stress element. (b) Determine the principal stresses and the magnitude of the maximum in-plane shear stress acting at the point and show these stresses on an appropriate sketch (e.g., see Figure 12.15 or Figure 12.16). C X Ø C y (1 barrow_forwardy 30 kPa el. 30 m alcohol From the figure shown, the alcohol surface is subjected to pressure a Compute the pressure p = 774 m3 of 30 kPa. at the elevations given below: 1. 6 m 2. 12 m el.16 m oll 3.3 m p = 890 el.8 m water el.5 m glycerin k9/m p = 1235 el. 0 marrow_forwardGiven the following BOD5 test results: Initial DO Final DO Dilution 8 mg/L0 mg/L1:10 What can you say abouta. BOD5?b. ultimate BOD?arrow_forward
- A separator accepts waste oil at 70% oil and 30% water by weight. The top product stream is pure oil while the bottom underflow contains 10% oil. If a flow of 20 gal/min is fed to the tank, how much oil is recovered? Two methanol-water mixtures are contained in a separate flask. The first mixture contains 40% w methanol and the second contains 70% w. If 200 g of the first mixture is combined with 150 g of the second, what are the mass and composition of the product?arrow_forwardIl Consider the capability of a process that puts pressurized grease in an aerosol can. The design specification calls for an average of 50 pounds per square inch (psi) of pressure in each can with an upper tolerance limit of 56psi and a lower tolerance limit of 46psi. A sample is taken from production, and it is found that the cans average 51psi with a standard deviation of 2psi. Find the following unknowns. 1. Capability Index (Cpk) 2. Is the process capable at the 30 level? 3. What is the probability of producing a defect? Hind: use the standard normal table as seen below.arrow_forwardProblem 3 Consider the casting of a pig-like art piece using ductile iron. Dimensions are shown below. Using the NRL method, design the riser needed. Hint: Simplify the shapes to make calculations easier. 100 mm Smm 60mm > + Smm Sem 5mm 30mm 100 mm (0 미 30mm Problem 4 In Problem 3, if the solidification time of the riser alone is around 30 secs, what would be the estimated solidification time of the casting alone? Hint: The same mold is used and it has a homogeneous composition.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Solid Waste EngineeringCivil EngineeringISBN:9781305635203Author:Worrell, William A.Publisher:Cengage Learning,
Solid Waste Engineering
Civil Engineering
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Cengage Learning,