MEE 5901 Columbia Southern University Solid Waste Management Paper

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Consider the residential waste components (1st column in Table 2-6 on p. 53 in the textbook) and answer the following questions: (Your total response for all parts of this question should be at least 300 words.)What components of mixed municipal solid waste (MSW) are rejected in storage and sent via truck to the landfill?What components pass through the trommel screen? What components are screened out through the trommel screen?What components that passed through the trommel screen are captured in the magnetic separator? What components are sent to the flattener?What components are removed in the sorting step? See Figure 5-38 (on p. 225) for additional details.What materials pass through the sorting step and go into the Hammermill shredding operation?What materials are separated in the air classifier operation?How do these processes demonstrate best practices of solid waste management?

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MEE 5901, Advanced Solid Waste Management
Unit IV Assignment
This assignment will allow you to demonstrate the following objectives:
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Evaluate the evolution of technologies related to solid waste management.
Describe best practices of solid waste management in an urban society.
Instructions: Municipalities make every effort to best use resources and technologies in their
management of non-hazardous wastes. It can take five to ten years to construct and to permit a new
landfill site. It is to everyone’s advantage to use the space in a manner that the right types of waste are
disposed of and that compaction levels of the waste are high. This is accomplished when easily
degradable wastes are composted, when particle sizes are uniform and every opportunity is made to
remove recyclable content. The technologies in this chapter are examples of the available tools that
engineers use to accomplish these objectives, and this assignment will allow you to further explore this
topic.
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) Consider the residential waste components (1st column in Table 2-6 on p. 53 in the textbook) and
answer the following questions: (Your total response for all parts of this question should be at least
300 words.)
a. What components of mixed municipal solid waste (MSW) are rejected in storage and sent via
truck to the landfill?
b. What components pass through the trommel screen? What components are screened out
through the trommel screen?
c. What components that passed through the trommel screen are captured in the magnetic
separator? What components are sent to the flattener?
d. What components are removed in the sorting step? See Figure 5-38 (on p. 225) for additional
details.
e. What materials pass through the sorting step and go into the Hammermill shredding
operation?
f. What materials are separated in the air classifier operation?
g. How do these processes demonstrate best practices of solid waste management?
2) A local municipality has plans to annex a suburb community of 80,000 people. Neither the
municipality nor the community has a curbside recycling program as they both put all of their refuse
into the trash bin for collection. The municipality hand sorts the refuse and recognizes that it will need
to hire new employees and establish a budget to hand sort a larger amount of waste. Assume the
following: (1) hand sorting is done eight hours per day; five days per week and (2) employees are
paid $21/hr, and that includes allotted benefits. (For Parts A and B of this question, show all of your
work.)
a. How many new full-time employees will need to be hired?
b. What additional budget should be planned to cover the cost of the new employees?
c. What do you think would happen if these additional employees were not hired? Describe how
this would affect the municipality and why it is best to hire these additional employees. (Your
response for Part C of this question should be at least 100 words).
MEE 5901, Advanced Solid Waste Management
Unit IV Assignment
3) Your facility has purchased an air classification system with a fan that can generate an air flow rate in
the system that goes up to 15 ft/sec. Your Hammermill shredder is able to provide a wastestream
containing plastic that passes a 2 cm grate. The density of the plastic is 0.955 g/cm. The facility does
not have the means to conduct a drop test, but as the site consultant, they want you to make your
best estimate about whether the unit will separate out the plastic from the shredded waste. Show all
work before you give your estimate. (Your total response for all parts of this question should be at
least 200 words.)
4) Describe how the terms coding and switching are used in relation to MSW. Show how these terms
apply to picking and hand-sorting operations, and describe best practices for each. (Your total
response for all parts of this question should be at least 200 words.)
5) a. Describe how these separation technologies have evolved over the last decade. Include the factors
that are driving the development and commercialization of these operations to be used in treating
municipal solid waste.
b. In your opinion, which of the separation technologies in use today would qualify to be classified as
best in class? State your criteria for what qualifies as best in class and state your reasons for your
selection. (Your total response for all parts of this question should be at least 200 words.)

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Tags:
residential waste components

Municipalities

resources and technologies

compaction levels

suburb community

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