Podcast
Questions and Answers
What is the main purpose of size reduction in MSW?
What is the main purpose of size reduction in MSW?
- To transport materials to a MRF
- To separate materials based on size
- To process materials for direct use like mulch or compost (correct)
- To increase the size of materials
Which type of equipment is effective for breaking brittle materials?
Which type of equipment is effective for breaking brittle materials?
- Disc Screen
- Shear Shredder
- Hammermill (correct)
- Tub Grinder
How do shear shredders operate?
How do shear shredders operate?
- By a scissor-like action with counter-rotating knives (correct)
- By using centrifugal forces
- By rotating at high speeds
- By crushing waste using hammers
Which type of shaft is considered more reliable in hammermills?
Which type of shaft is considered more reliable in hammermills?
What is the main advantage of Tub Grinder in size reduction?
What is the main advantage of Tub Grinder in size reduction?
How does the size distribution change after hammermilling raw MSW materials?
How does the size distribution change after hammermilling raw MSW materials?
What is the main purpose of Materials Recovery Facilities (MRFs)?
What is the main purpose of Materials Recovery Facilities (MRFs)?
What happens to the organic portions of waste in a Materials Recovery Facility?
What happens to the organic portions of waste in a Materials Recovery Facility?
Which unit operation is used in MRFs to separate plastic from paper?
Which unit operation is used in MRFs to separate plastic from paper?
Why is it important to modify the physical characteristics of waste in MRFs?
Why is it important to modify the physical characteristics of waste in MRFs?
What is the purpose of densification in Materials Recovery Facilities?
What is the purpose of densification in Materials Recovery Facilities?
Which component of MSW can be transformed into refuse-derived fuel (RDF) for energy recovery?
Which component of MSW can be transformed into refuse-derived fuel (RDF) for energy recovery?
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