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Technological Options for Biogenic Waste and Residues—Overview of Current Solutions and Developments

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Waste Valorisation and Recycling

Abstract

Globally, it is becoming increasingly clear that organic waste can not only cause massive environmental impacts, including climate-harming emissions by illegal dumping, burning or even untreated landfilling but also is a valuable resource for energy generation and recycling. The transition from waste disposal to a circular economy is in progress. In many countries, its separate collection and high-quality utilization were recognized as an opportunity. The separate collection of biowaste is mandatory for all European countries (EU Waste Directive 2008/98/EC). Due to its decades of tradition, Germany is on a comparatively good level in the separate biowaste collection, although the collection rate varies widely. The arising amount of biogenic waste and residues is dependent on the population, living conditions, and agricultural production. There is still unused potential available, for example, one-third percent of the technical potential of waste biomass in Germany. The proper treatment and the highest possible use of this waste are of particular importance because of their environmentally harmful emissions. Moreover, no competition for food and feed exists, different from energy crops. In the field of high-quality recycling in the form of combined biogas production and subsequent production of compost, there is also room for improvement in Germany. Biogenic waste and raw materials are to be used even more efficiently in the ongoing bioeconomy. Current research all over the world focuses on integrated biorefinery concepts, the production of basic chemicals, specialized fibers, chars based on biowaste. In the future, energy-efficient biowaste treatment plants are not only intended to safely fulfill their disposal and recycling function, but also to supply electricity demand orientated and to link sectors such as the transport and heat sector in an optimal way. At the same time, biowaste treatment facilities are faced with increasing impurity content, the demographic change, the profitability, and the acceptance of the recycling products. The implementation of high-quality recycling of organic waste is often hindered by low environmental awareness and/or lack of refinancing systems.

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Notes

  1. 1.

    ‘Waste’ means any substance or object which the holder discards or intends or is required to discard.

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Acknowledgements

The presented work is part of the running research project “Network Stability with Wind and Bioenergy, Storage and Loads (Netz-Stabil)”, ESF/14-BM-A55-0021/16. The authors are grateful to the Excellence Initiative of the Federal State Mecklenburg-Western Pomerania funded by the European Social Fund for Germany (ESF) for the support of the research.

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Schüch, A., Morscheck, G., Nelles, M. (2019). Technological Options for Biogenic Waste and Residues—Overview of Current Solutions and Developments. In: Ghosh, S. (eds) Waste Valorisation and Recycling. Springer, Singapore. https://doi.org/10.1007/978-981-13-2784-1_29

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