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

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65<br />

2. Commingled recyclables collecti<strong>on</strong> with processing at centralized materials<br />

recovery facilities (MRFs)<br />

3. Mixed MSW collecti<strong>on</strong> with processing for recovery of the recyclable<br />

materials from the <strong>waste</strong> stream<br />

4.3.1. Source Separati<strong>on</strong><br />

Source separati<strong>on</strong> is defined as the removal of potentially recyclable materials<br />

from the <strong>waste</strong> stream, c<strong>on</strong>ducted by the individual c<strong>on</strong>sumer <str<strong>on</strong>g>and</str<strong>on</strong>g> commercial<br />

establishment. MSW Source separati<strong>on</strong> c<strong>on</strong>stitutes an alternative <str<strong>on</strong>g>and</str<strong>on</strong>g><br />

complementary stage of an effective solid <strong>waste</strong> management program. The<br />

parameters that influence the implementati<strong>on</strong> <str<strong>on</strong>g>and</str<strong>on</strong>g> the successfulness of such a<br />

scheme are the following (HSWMA., 2008):<br />

the type <str<strong>on</strong>g>and</str<strong>on</strong>g> the quantity of the recycling materials to be separated<br />

the quality of the recovered materials –<br />

the existence of suitable markets<br />

the easiness of its operati<strong>on</strong> <str<strong>on</strong>g>and</str<strong>on</strong>g> the cost of alternative solid <strong>waste</strong><br />

management techniques established in the regi<strong>on</strong> under investigati<strong>on</strong><br />

level of public awareness <str<strong>on</strong>g>and</str<strong>on</strong>g> willingness to participate<br />

The collecti<strong>on</strong> of the segregated MSW can take place by elaborating various<br />

methods including door to door collecti<strong>on</strong>, collecti<strong>on</strong> in appropriate bins, <str<strong>on</strong>g>and</str<strong>on</strong>g><br />

collecti<strong>on</strong> in centers. The separated materials can be collected individually in<br />

single-compartment trucks, or they can be collected at the same time in a<br />

specially designed multi-compartment recycling vehicle. The segregated<br />

comp<strong>on</strong>ents are then transported to a c<strong>on</strong>solidati<strong>on</strong> site for further processing<br />

<str<strong>on</strong>g>and</str<strong>on</strong>g> subsequent shipment to markets.<br />

Several schemes <str<strong>on</strong>g>and</str<strong>on</strong>g> pilot tests have dem<strong>on</strong>strated that <strong>household</strong>ers are able<br />

to accurately sort their solid <strong>waste</strong> into different categories if appropriate <str<strong>on</strong>g>and</str<strong>on</strong>g><br />

clear guidance is given. For example, a study carried out in Leeds, UK, showed<br />

that <strong>household</strong>ers could sort their <strong>waste</strong> into six different categories with a<br />

96.5% success rate (Forrest et al., 1990). A US study showed similar results<br />

(Beyea et al., 1992). Clear instructi<strong>on</strong>s to the <strong>household</strong>er are essential for the<br />

successfulness of a source separati<strong>on</strong> scheme.<br />

4.3.2. Commingled Recycling<br />

Here the generator <strong>on</strong>ly needs to separate recyclable materials from n<strong>on</strong>recyclables.<br />

Newspapers are appropriate to be kept separate from the rest of the<br />

commingled recyclables so that c<strong>on</strong>taminati<strong>on</strong> can be prevented.

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