Regenerative Energie
The waste hierarchy is an easy and comprehendible tool for supporting decision making in solid waste management. The waste hierarchy gives priority to waste reduction, reuse and recycling, incineration and landfilling but the basis for this priority is quite uncertain (McDougall,F.R. et al., 2001;Rasmussen,C. et al., 2005). Thus, it has been the aim to evaluate waste management systems by their environmental profiles by using life cycle assessment.
A new computer based life cycle assessment model (EASEWASTE) has been used to evaluate a municipal solid waste system with the purpose of identifying environmental benefits and disadvantages by anaerobic digestion of source separated household waste and incineration. The most important processes included in the study are optic sorting and pretreatment, anaerobic digestion with heat and power recovery, incineration with heat and power recovery, use of digested biomass on arable soils and an estimated surplus consumption of plastic for source separation in order to achieve a higher quality and quantity of organic waste to the biogas plant. Results showed that there were no significant differences for most of the assessed environmental impacts for the two scenarios. However, the use of digested biomass may cause a potential toxicity impact on the human health due to heavy metal contents of the organic waste. A sensitivity analysis showed that the results are sensitive to the energy recovery efficiencies, to the extra plastic consumption for waste bags and to the content of heavy metals in the waste. A model as EASEWASTE is very suitable to evaluate the overall potential environmental consequences of different waste management strategies and technologies, and can be used for most waste material fractions existing in household waste.
| Copyright: | © IWWG International Waste Working Group |
| Quelle: | Venice Conference 2006 (November 2006) |
| Seiten: | 9 |
| Preis: | € 9,00 |
| Autor: | J. Kirkeby T.H. Christensen G.S. Bhander T.L. Hansen H. Birgisdottir |
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Hochlauf der Wasserstoffwirtschaft
© Lexxion Verlagsgesellschaft mbH (8/2024)
Überblick über und Diskussion der Maßnahmen zum beschleunigten Ausbau
der Wasserstoffinfrastruktur in Deutschland
Die innerstaatliche Umsetzung des Pariser Klimaschutzübereinkommens
- ein Rechtsvergleich
© Lexxion Verlagsgesellschaft mbH (8/2024)
Like all public international law treaties, the Paris Climate Accords rely on national law for their implementation. The success of the agreement therefore depends, to a large extent, on the stepstaken or not taken by national governments and legislators as well as on the instruments and mechanisms chosen for this task. Against this background, the present article compares different approaches to the implementation of the Paris Agreement, using court decisions as a means to assess their (legal) effectiveness.
Klimaschutzrecht und Erzeugung erneuerbarer Energien in der Schweiz
© Lexxion Verlagsgesellschaft mbH (8/2024)
Verschachtelte Gesetzgebung unter politischer Ungewissheit