Page 55 - KELAG Annual Report 2019
P. 55

6,231 metric  tons  in  2019,  of  which  approximately  543
           metric tons are classified hazardous materials.

           The  best  way  of  handling  waste  would  be  to  avoid  it
           completely. The second best way is to recycle, as is done, for
           example, with glass and paper. Even so, every household
           accumulates residual waste that requires disposal. Residual
           waste from households in Carinthia is thermally treated at
           1,100  degrees  Celsius  at  Kärntner  Restmüllverwertungs
           GmbH  in  Arnoldstein.  Through  this  process,  heat  and
           electricity can be generated from the household waste; the
           solid residues – slag and dust – are deposited in a landfill.
           The  incineration  of  residual  waste  has  two  further
           advantages  over  conventional  landfilling:  emissions
           impacting the climate are significantly lower; moreover, less
           landfill volume is needed. The incineration of 99,000 metric
           tons  of  household  waste  per  year  avoids  184,000  metric
           tons  of  carbon-dioxide  equivalent. The  remaining  slag  is
           non-hazardous  and  can  be  deposited  in  a  landfill.
           Compared  with  landfilling  waste  without  thermal
           treatment,  only  around  one-eighth  of  the  volume  is
           required. Since its commissioning in 2004, already over 1.3
           million metric tons of residual waste have been thermally
           treated at the plant in Arnoldstein.
            GR 306-2
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