Regenerative Energie
Pretreatment of waste is law in Germany since 1st of June 2005. One principal method is municipal solid waste incineration. Research on mobilisation and retention of environmentally relevant pollutants (highly soluble salts and heavy metals) in residues from waste incineration is urgent as incineration results in an accumulation of ecotoxic species. Long-term leaching of highly soluble salts and ecotoxic species was observed for a term of 25 months. We conducted laboratory experiments with bottom ash, as column tests. In general column experiments are conducted at water saturated conditions. But in landfills alternation of wet and dry conditions occur. Therefore unsaturated conditions were applied to our experiments.
On monofills the way of emplacement of waste may lead to a sequence of layers with different grain size. Due to compaction reduced permeability within these layers can be intensified. Laboratory experiments with bottom ash were conducted to examine the effect of grain size changeover within a column on long-term leaching of highly soluble salts and ecotoxic species. The application of a fine grained layer obviously changed the permeability along the profile of the column. Analysed solid samples indicated that the fine grained layer has a high water content due to impounding leachate. Just below the barrier layer the sample is much drier. Increased conductivity of the eluates confirms the effect of grain size changeover. The retention of highly soluble salts is enhanced. We applied unsaturated water conditions to our laboratory tests. The experiments showed that the alternation of wet and dry conditions causes an accumulation of salts along grain boundaries.
| Copyright: | © IWWG International Waste Working Group |
| Quelle: | Specialized Session D (Oktober 2007) |
| Seiten: | 9 |
| Preis: | € 9,00 |
| Autor: | Dr. Daniela Sager Prof. Dr. Soraya Heuss-Aßbichler Dr. Gerhard Heindl |
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Rechtliche und praktische Unsicherheiten bei der Durchführung des europäischen Klimaanpassungsrechts durch das Bundes- Klimaanpassungsgesetz (KAnG)
© Lexxion Verlagsgesellschaft mbH (6/2025)
In the context of the European Climate Law (EU) 2021/1119), the Governance Regulation (EU) 2018/1999 and the Nature Restoration Regulation (EU) 2024/1991, the KAnG came into force on July 1, 2024.
Transformatives Klimarecht: Raum, Zeit, Gesellschaft
© Lexxion Verlagsgesellschaft mbH (6/2025)
This article contends that climate law should be conceived as inherently transformative in a double sense. The law not only guides the necessary transformation of economy and society, but is itself undergoing transformation.
Maßnahmen zur Klimaanpassung sächsischer Talsperren
© Springer Vieweg | Springer Fachmedien Wiesbaden GmbH (5/2025)
Die Landestalsperrenverwaltung des Freistaates Sachsen (LTV) betreibt aktuell insgesamt 87 Stauanlagen, darunter 25 Trinkwassertalsperren. Der Stauanlagenbestand ist historisch gewachsen und wurde für unterschiedliche Zwecke errichtet.