Refine
Has Fulltext
- no (176) (remove)
Year of Publication
Document Type
- Part of a Book (61)
- Report (36)
- Contribution to Periodical (25)
- Peer-Reviewed Article (21)
- Working Paper (14)
- Conference Object (11)
- Book (7)
- Habilitation (1)
Weiter, schneller, mehr - noch treibt dieses Credo die Industriegesellschaft voran, doch unser ressourcen- und energieintensives Wohlstandmodell ist weder zukunftsfähig noch zu verallgemeinern. Die Studie des Wuppertal Instituts geht der Frage nach, wie eine nachhaltige Entwicklung Deutschlands erreicht werden könnte.
Wohin mit dem ökologischen Rucksack? : Probleme und Perspektiven unserer Durchflußgesellschaft
(1996)
Managing solid waste is one of the biggest challenges in urban areas around the world. Technologically advanced economies generate vast amounts of organic waste materials, many of which are disposed to landfills. In the future, efficient use of carbon containing waste and all other waste materials has to be increased to reduce the need for virgin raw materials acquisition, including biomass, and reduce carbon being emitted to the atmosphere therefore mitigating climate change. At end-of-life, carbon-containing waste should not only be treated for energy recovery (e.g. via incineration) but technologies should be applied to recycle the carbon for use as material feedstocks. Thermochemical and biochemical conversion technologies offer the option to utilize organic waste for the production of chemical feedstock and subsequent polymers. The routes towards synthetic materials allow a more closed cycle of materials and can help to reduce dependence on either fossil or biobased raw materials. This chapter summarizes carbon-recycling routes available and investigates how in the long-term they could be applied to enhance waste management in both industrial countries as well as developing and emerging economies. We conclude with a case study looking at the system-wide global warming potential (GWP) and cumulative energy demand (CED) of producing high-density polyethylene (HDPE) from organic waste feedstock via gasification followed by Fischer–Tropsch synthesis (FTS). Results of the analysis indicate that the use of organic waste feedstock is beneficial if greenhouse gas (GHG) emissions associated with landfill diversion are considered.
Poor sustainability and increasing economic shortcomings in fossil raw material use besides further technical developments of substitutes lead to a growing potential for CO2-utilisation. Hence, we balanced CO2-based methane and methanol production in a life cycle assessment and identified CO2-utilisation as a greenhouse gas saving method. However, it requires a lot of renewable energy.