(best examples and good practices) on household organic waste ...

66
The sorting of recyclables may be done at the source (i.e. within the household
or office) for selective collection by the municipality or to be dropped off by the
waste producer at recycling centers. (Tchobanoglous <strong>and</strong> Kreith., 2002)
4.3.3. Collection of Mixed MSW
In the third approach to recycling, there is no segregation of recyclables from
other waste materials. Mixed wastes (including recyclables) are set out at
curbside as would be done for l<strong>and</strong>filling or incineration. One collection vehicle
is required for collection of the mixed waste—normally, the familiar packer
truck. The mixed waste is then transported to a central processing facility,
which employs a high degree of mechanization, including separation
equipment such as shredders, trommels, magnets, <strong>and</strong> air classifiers to recover
the recyclables. Mixed-waste processing of recyclables is also known as frontend
processing or refuse-derived fuel (RDF) processing of MSW. (Tchobanoglous
<strong>and</strong> Kreith, 2002)
4.4. Waste collection
Collection of commingled (unseparated) <strong>and</strong> separated (recyclables) solid
waste is a critical part of any solid waste management program. Collection
starts with the containers holding materials that a generator has designated as
no longer useful (solid waste <strong>and</strong> recyclables) <strong>and</strong> ends with the transportation
of solid wastes or recyclables to a location for processing (e.g., a materials
recovery facility), transfer, or disposal. Solid waste collection involves both the
provision of a service <strong>and</strong> the selection of appropriate technologies. The service
aspect is set through an agreement between waste generators <strong>and</strong> the waste
collector or collection agency, <strong>and</strong> the waste collection contractor or agency
selects the technology to be used for collection.
When considering collection technology, the basic components are surface
streets <strong>and</strong> roadways, over-the-road trucks, <strong>and</strong> sturdy containers (Picture 6.)
for storage. There have not been dramatic changes to these components since
motor-driven vehicles replaced horse-drawn carts (Merrill., 1998). Technology
changes will make the truck <strong>and</strong> labor more efficient, but the basic collection
truck will be used for many more years. (Tchobanoglous <strong>and</strong> Kreith., 2002)