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Material recovery facilities (MRF)
MRF (pronounced 'murf') is a centralised facility that receives, separates, processes and markets recyclable material. It can be operated with both drop off and curbside programmes.
The primary advantage of MRF is that it allows materials directly from the municipalities and processes them uniformly. It is generally designed to handle all type of recyclables.
Implementation of MRF in a municipality depends upon a number of factors as follows:
Market demand: When additional processing is required, MRF is more useful as buyers may have certain material specifications.
Separate collection: In systems that require residents to separate their recyclables, intermediate separation and proc essing is required.
Number of different recyclables: In general, a MRF will be more benefi cial when a large number of different recyclables are collected.
Quantities of materials: Because MRF involves substantial capital and operating costs (e.g., buildings, equipment and l abour), it is expected to handle a significant am ount of materials to justify its operation.
Motion time measurement (MTM) technique
MTM also helps i n deciding the best combination of equipmen
Motion time measurement (MTM) studies are now an integral part of the standard procedure in the development of solid waste collection systems. MTM is a tech and estimate the movement of the collection crew with the help of stopwatches. Sophisticated MTM studies involve hidden or open video cameras at different collection stops to record, replay and study the operation sequence of the collection crew.
If the crew is conscious of being observed, they tend to work faster and reduce time wastage in unauthorised salvaging and other non- scheduled activities. Once the crew is familiar with the person(s) observing them, it begins to perform more credibly. In studies involving video cameras, therefore, the first two or three hours of observation are often neglected.
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