Regenerative Energie
The development of mechanical-biological waste treatment in Austria is inextricably linked to the development of the Austrian landfill law. Based on the provisions of the Austrian Landfill Ordinance 1996, only pre-treated, poor reactive waste is allowed to be deposited in Austria since 1 January 2004.
The most essential deposition criterion is the proportion of organic carbon (TOC) in the deposited waste. According to the regulations of the Landfill Ordinance, a maximum TOC-content of five percent by dry mass is determined for the depositing of waste at a so called mass-waste disposal site. To reach this TOC-limit it usually requires a thermal treatment of waste. In order not to be excluded by that provision, the mechanical-biological waste treatment technology has been established as an alternative waste treatment method in the Landfill Ordinance. Mechanically biologically pre-treated waste must not exceed the limit of the gross calorific value of 6,000 kJ/kg DM. In this case the TOC-limit value becomes obsolete. These requirements ensure that only low reaction wastes go to final disposal sites and high calorific fractions will be used to produce energy. Furthermore, mechanically biologically pre-treated waste must comply with the limit values of the so called stability parameters (breathability, gas formation potential, gas donation) to detect the biological stabilization of the material prior to deposition. The pretreatment-bid of waste causes next to a reduction in volume, above all, a decrease in gas formation potential and thus leads to a shortening of the follow-up service period of landfills.
| Copyright: | © Thomé-Kozmiensky Verlag GmbH |
| Quelle: | Waste Management, Volume 5 (Dezember 2015) |
| Seiten: | 9 |
| Preis: | € 0,00 |
| Autor: | Dipl.-Ing. Josef Mitterwallner Hofrat Dipl.-Ing. Dr. Wilhelm Himmel |
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© Lexxion Verlagsgesellschaft mbH (6/2025)
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© Springer Vieweg | Springer Fachmedien Wiesbaden GmbH (5/2025)
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