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

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11.11.2014 Views

203 One compressor for compressing the ferrous metals into cubes Conveyor belts One Aluminum Line which consists of: Layout for aluminum recycling which employs eddy currents in order to recover aluminum material from the rest One silo where the recovered aluminum is stored. Then it is fed to a compressor Aluminum compressor where the recovered aluminum is formed into cubes Conveyor belts One homogenization line with: Three (3) homogenization layouts; each one corresponds to one mechanical layout ong>andong> to one sludge reception system. Each layout is fed with waste through the exit of the corresponding bioreactor (after the tertiary screening, with the screener which is incorporated in the bioreactor). Furthermore, it is fed with sludge from the respective sludge receptor ong>andong> with shredded tree cuttings ong>andong> leaves. Conveyor belts Furthermore, the Factory of Mechanical Recycling of Waste has equipment which assures the protection of the environment ong>andong> of the personnel. This equipment includes cyclones, air ducts ong>andong> air ventilators for the suction of air etc. (Morocomp.,2010) The Composting Unit The composting unit (Picture 58.) of Ano-Liosia employs the technology of tunnel composting to treat the organics of Municipal Solid Waste sorted out through the Mechanical Separation System, sludge ong>andong> green waste. More specifically, the plant comprises of the following:

204 Picture 58.: View of Composting Tunnel at Ano-Liosia in Greece (Morocomp.,2010) Three (3) feeding lines: each line feeds 16 composting tunnels with biodegradable material. The total number of composting tunnels is 48. The transportation of the biodegradable material is conducted via conveyor belts. The tunnels are fed with the following material: The mixture exiting the homogenization unit The biodegradable fraction that is recovered from the ballistic separator The recycled material from the screening process The recycled compost material. As it will be described later, the end compost is screened. The reject stream is then recycled through an elevated conveyor back to the composting unit, as a product that has not been fully composted. It is split into three streams in order to be fed to the 3 lines of the composting unit. The compost mix is placed inside the tunnels up to a height of 2.1 m. Six (6) electrical agitation devices. Each couple (2) of agitation devices is used to mix 16 composting tunnels, corresponding to one feeding line. Each day the agitator agitates 4 tunnels. Overall, 24 composting tunnels are agitated each day. As the agitators proceed inside the composting tunnel they displace the compost mix forward towards the exit of the composting tunnel. Therefore, every 2 days, the agitator completes one displacement of the compost mix towards the exit of the

203<br />

One compressor for compressing the ferrous metals into cubes<br />

C<strong>on</strong>veyor belts<br />

One Aluminum Line which c<strong>on</strong>sists of:<br />

Layout for aluminum recycling which employs eddy currents in<br />

order to recover aluminum material from the rest<br />

One silo where the recovered aluminum is stored. Then it is fed<br />

to a compressor<br />

Aluminum compressor where the recovered aluminum is<br />

formed into cubes<br />

C<strong>on</strong>veyor belts<br />

One homogenizati<strong>on</strong> line with:<br />

Three (3) homogenizati<strong>on</strong> layouts; each <strong>on</strong>e corresp<strong>on</strong>ds to <strong>on</strong>e<br />

mechanical layout <str<strong>on</strong>g>and</str<strong>on</strong>g> to <strong>on</strong>e sludge recepti<strong>on</strong> system. Each<br />

layout is fed with <strong>waste</strong> through the exit of the corresp<strong>on</strong>ding<br />

bioreactor (after the tertiary screening, with the screener which<br />

is incorporated in the bioreactor). Furthermore, it is fed with<br />

sludge from the respective sludge receptor <str<strong>on</strong>g>and</str<strong>on</strong>g> with shredded<br />

tree cuttings <str<strong>on</strong>g>and</str<strong>on</strong>g> leaves.<br />

C<strong>on</strong>veyor belts<br />

Furthermore, the Factory of Mechanical Recycling of Waste has equipment<br />

which assures the protecti<strong>on</strong> of the envir<strong>on</strong>ment <str<strong>on</strong>g>and</str<strong>on</strong>g> of the pers<strong>on</strong>nel. This<br />

equipment includes cycl<strong>on</strong>es, air ducts <str<strong>on</strong>g>and</str<strong>on</strong>g> air ventilators for the sucti<strong>on</strong> of air<br />

etc. (Morocomp.,2010)<br />

The Composting Unit<br />

The composting unit (Picture 58.) of Ano-Liosia employs the technology of<br />

tunnel composting to treat the <strong>organic</strong>s of Municipal Solid Waste sorted out<br />

through the Mechanical Separati<strong>on</strong> System, sludge <str<strong>on</strong>g>and</str<strong>on</strong>g> green <strong>waste</strong>. More<br />

specifically, the plant comprises of the following:

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