CSU MEE5901 Unit 3 Assignment Latest 2019 MAY Question # 00601258 Subject: Education Due on: 05/13/2019 Posted On: 05/13/2019 09:54 AM Tutorials: 1 Rating: 4.7/5

MEE5901 Advanced Solid Waste Material

Unit 3 Assignment

This
assignment will allow you to demonstrate the following objectives:

? Evaluate
the evolution of technologies related solid waste management.

? Describe
best practices of solid waste management in an urban society.

Instructions:
Advanced treatment technologies will
be needed in the future to complement the traditional landfill and incineration
options in use today. The objective of these technologies is to prepare wastes
for disposal where combustion is present and to derive energy from municipal
wastes with the benefit of reducing the volume that is landfilled after
treatment. This extends the life of landfills before they become unavailable to
the local community and need to be closed. The fuel value of municipal waste
explored in this assignment is critical to the efficient operation of advanced
technologies.

Answer the
questions directly on this document. When you are finished, select “Save As,”
and save the document using this format: Student ID_Unit# (ex. 1234567_UnitI).
Upload this document to BlackBoard as a .doc, docx, or .rtf file. The specified
word count is given for each question. At a minimum, you must use your textbook
as a resource for these questions. Other sources may be used as needed. All
material from outside sources (including your textbook) must be cited and
referenced in APA format. Please include a reference list after each question.

1) The particle size of municipal solid
waste (MSW) is best described by a distribution of particle sizes. Referring to
Figure 4–12 (pg. 145):

a) List the
waste categories that have a larger particle size than the composite curve.

b) List the
waste categories that have a smaller particle size than the composite curve.

c) As the
blades on the shredder unit begin to wear, will the particle size of the
composite curve be shifted towards larger or smaller particles? Explain how you
came to your answer.

d) Looking
at Table 4–3 (pg. 148), will Houston, TexasTX, or Wilmington, DelDE., have a
coarser particle size distribution? Explain how you came to this determination
using best practices in solid waste management. (Your total response for all
parts of this question should be at least 200 words.)

2) Properties
of MSW (For parts A-C, show all of your work for the problems.)

a) As a
consultant, your client hands you literature that they it have has received
from two manufacturers of shredder equipment. The bulk density specifications
of unit “A” is 29.3 lb/Ft3 ft3 and the bulk density of unit “B” is 435
Kgkg/M3m3. Which unit will deliver a higher bulk density refuse? Show your
work.

b) Referring
to Fig 4–1 (p.g, 127), how far above the floor is the bulk density of the
stored MSW when it is compressed to 200 Kgkg/M3m3?

c) What is
the potential concern of the facility manager if the moisture content of the
stored MSW is 60%?

d) Prepare
a table that compares two different shredder technologies presented in the
textbook. In the table, list the advantages and disadvantages for each
technology. When preparing the table, think about how your two chosen shredders
have evolved over time to meet the needs of solid waste engineers. Include
information about this in your table. (Your total response for Part D of this
question should be at least 100 words.)

3) A local
municipality is selling landfill capacity to a neighboring communities to
generate additional revenue for the community. The following specifications are
known about the facility:

• 25 acres
are reserved for use by neighboring communities.

• The
volume of waste that can go into the landfill will be limited to 2.5 million
yd3

• The
neighboring communities are required to deliver MSW at a density of 750 lb/yd3

a) How much
revenue can the landfill generate if they it charges $45/ton for the waste
received from the neighboring communities. ? Show all work.

b) If the
landfill purchases a compressor capable of delivering 1,350 lb/yd3, how much
additional revenue can the landfill generate? Show all work.

c) Refer to
Fig. 4–6 (pg. 138). What pressure needs to be apply applie to the refuse to
deliver a compressed waste to the landfill at of 500 lb/yd3?

d) The
landfill is developing criteria for purchasing another compression unit. At
what pressure must the compressor operateor to get a bulk density of 1,080
lb/yd3? (For Parts A-D, show all of your work.)

e) What are
some of the best practice alternatives that will also generate income to offset
landfill operational costs that the municipality might consider if the
economics do not support selling landfill capacity to a neighbor that will also
generate income to offset landfill operational costs? (Your total response for
Part E should be at least 200 words.)

4) Hammermill
Shredder

a) Figure
4–9 (pg. 142) shows a diagram of a vertical hammer shredder. Describe the
function of the top half of the unit. What happens if the unit does not
properly operate?

b) What is
the function of the lower half of the unit? What happens if the unit does not properly
operate?

c) Define
what is meant by characteristic size? (For Parts A-C, show all of your work.)

d) Using
Fig 4–16 (pg. 151), does the characteristic size (XO) of the refuse change as
higher levels of refuse are processed? How would you explain to your client the
variability that you see in the graphs to your client? (Your total response for
Part D should be at least 75 words).