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208<br />

Unit for Treatment of Air Emissi<strong>on</strong>s from the Composting Unit<br />

The unit c<strong>on</strong>sists of six (6) sub-units for the treatment of air emissi<strong>on</strong>s resulting<br />

from the composting process. The treatment is performed by employing<br />

chemical means; more specifically chemical scrubbing is performed. Each subunit<br />

is fed by <strong>on</strong>e of the 6 main pipes that collect the air exhaust from the<br />

composting unit. Two sub-units corresp<strong>on</strong>d to <strong>on</strong>e line from the composting<br />

unit. Each sub-unit c<strong>on</strong>sists of:<br />

One (1) tower for the removal of NH3 with the additi<strong>on</strong> of Η2SO4.<br />

One (1) neutralizati<strong>on</strong> tower where NaOH is added<br />

One (1) tower for c<strong>on</strong>trolling the pH value <str<strong>on</strong>g>and</str<strong>on</strong>g> the Red/ox potential<br />

through the additi<strong>on</strong> of hypochloric acid<br />

Six (6) chimneys<br />

Furthermore, the Ano-Liosia plant has supplementary facilities (e.g. fire<br />

fighting facilities, water <str<strong>on</strong>g>and</str<strong>on</strong>g> acid reservoirs etc), green installati<strong>on</strong>s, road<br />

facilities (e.g. roundabouts) <str<strong>on</strong>g>and</str<strong>on</strong>g> c<strong>on</strong>trol buildings for most units. Each building<br />

is c<strong>on</strong>trolled through its Local C<strong>on</strong>trol Building. However, the whole operati<strong>on</strong><br />

of the facility is c<strong>on</strong>trolled from the Main Administrati<strong>on</strong> Building.<br />

(Morocomp.,2010)<br />

11.4.2.The MBT plant in Chania<br />

The Solid Waste Recycling & Composting Plant (SWRC) <str<strong>on</strong>g>and</str<strong>on</strong>g> the Space for<br />

Sanitary Burial of Solid Waste (SSBSW) of the Prefecture of Chania was<br />

designed to collect <str<strong>on</strong>g>and</str<strong>on</strong>g> treat <strong>waste</strong> produced by the Municipalities of Chania,<br />

Akrotiri, Souda, Keramies, Eleftherios Venizelos, Therisos, Kyd<strong>on</strong>ia, Platania<br />

<str<strong>on</strong>g>and</str<strong>on</strong>g> Mousouri, although it has a much larger capacity. For that reas<strong>on</strong>, it<br />

currently collects urban <strong>waste</strong> from the entire Prefecture of Chania, except for<br />

<strong>waste</strong> from Sfakia, Armeni, Pelekanos <str<strong>on</strong>g>and</str<strong>on</strong>g> Anatoliko Selino.<br />

The producti<strong>on</strong> of municipal solid <strong>waste</strong> by the Municipalities menti<strong>on</strong>ed<br />

above is estimated to be 70,000 t<strong>on</strong>s annually (based <strong>on</strong> the design) <str<strong>on</strong>g>and</str<strong>on</strong>g> the<br />

producti<strong>on</strong> of green <strong>waste</strong> is estimated to be 10,500 t<strong>on</strong>s. 65% of the treated<br />

<strong>waste</strong> can be exploited as tradable recyclable <str<strong>on</strong>g>and</str<strong>on</strong>g> soil improvement material<br />

<str<strong>on</strong>g>and</str<strong>on</strong>g> the remaining 35% is buried in the SSBSW as residue.

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