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

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

11.11.2014 Views

211 that portions are measured for ripping of bags ong>andong> then it is transported to the moving belts for its final destination, which is the recycling plant. Picture 62.: Area where the emission of odors ong>andong> dust is fully under control (P.A.C., 2009) Collection building A mechanical sorting (Picture 63.) of dry matter (paper, plastic) from fluid matter (organic) takes place at the recycling building ong>andong> then a manual separation is made, from which the lanes of recyclable material may be sorted for utilization ong>andong> re-use. The sorted recyclable material is packaged ong>andong> ready for sale. A fraction is left from the treatment, which is rich in organic matter ong>andong> which, when mixed with the lane of "green" waste, is led to the rapid composting plant for further treatment. (P.A.C., 2009) Picture 63.: Mechanical shorting (P.A.C., 2009) Rapid Composting Unit The rich organic fraction is compressed (after it has been separated from mixed waste) in a reactor with a concurrent aerobic fermentation ong>andong> infusion of air.

212 A biological stabilization is then performed within an environment that has controlled temperature ong>andong> humidity. The composting process (Picture 64.) takes place in two treatment lanes which lie between two similar buildings. Composting. (P.A.C., 2009) Picture 64..: Composting organic fraction (P.A.C., 2009) The compressed material is churned once daily ong>andong> is forwarded on a system of bolts which are placed on a reversible bridge. After it has remained there for a period of six (6) weeks under constant ventilation ong>andong> churning, so that the composition of the biodecomposite organic load ong>andong> the production of very fine-grained material may be achieved, it is led for refining. Refining Unit The compost material is led to the refining unit (Picture 65.) for final treatment, which is the process of refining, during which unwanted material (glass, hard plastic, gravel, plastic sheets, etc.) that pollute the material may be removed. The final product that emerges from this treatment is the refined soil improvement material (compost), which is a stabilized form of an organic fraction of waste.

211<br />

that porti<strong>on</strong>s are measured for ripping of bags <str<strong>on</strong>g>and</str<strong>on</strong>g> then it is transported to the<br />

moving belts for its final destinati<strong>on</strong>, which is the recycling plant.<br />

Picture 62.: Area where the emissi<strong>on</strong> of odors <str<strong>on</strong>g>and</str<strong>on</strong>g> dust is fully under c<strong>on</strong>trol<br />

(P.A.C., 2009)<br />

Collecti<strong>on</strong> building<br />

A mechanical sorting (Picture 63.) of dry matter (paper, plastic) from fluid<br />

matter (<strong>organic</strong>) takes place at the recycling building <str<strong>on</strong>g>and</str<strong>on</strong>g> then a manual<br />

separati<strong>on</strong> is made, from which the lanes of recyclable material may be sorted<br />

for utilizati<strong>on</strong> <str<strong>on</strong>g>and</str<strong>on</strong>g> re-use. The sorted recyclable material is packaged <str<strong>on</strong>g>and</str<strong>on</strong>g> ready<br />

for sale. A fracti<strong>on</strong> is left from the treatment, which is rich in <strong>organic</strong> matter<br />

<str<strong>on</strong>g>and</str<strong>on</strong>g> which, when mixed with the lane of "green" <strong>waste</strong>, is led to the rapid<br />

composting plant for further treatment. (P.A.C., 2009)<br />

Picture 63.: Mechanical shorting<br />

(P.A.C., 2009) Rapid<br />

Composting Unit<br />

The rich <strong>organic</strong> fracti<strong>on</strong> is compressed (after it has been separated from mixed<br />

<strong>waste</strong>) in a reactor with a c<strong>on</strong>current aerobic fermentati<strong>on</strong> <str<strong>on</strong>g>and</str<strong>on</strong>g> infusi<strong>on</strong> of air.

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