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Pretreatments of Solid Wastes for Anaerobic Digestion and Its Importance for the Circular Economy

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Handbook of Solid Waste Management

Abstract

Anaerobic digestion is a biotechnological route for the transformation of solid biodegradable wastes to energy. Two main energetic biomolecules can be directly produced: methane and hydrogen. Biogas and biohydrogen processes share technological similarities: both demands pretreatment of solid substrates, occurs in the absence of oxygen, and results in the formation of a gas which contains mainly one molecule of high-energy content (CH4 or H2) and carbon dioxide. The use of solid biodegradable wastes for anaerobic biodigestion is limited due to the need of preprocessing technologies to optimize the bioconversion and reduce sedimentation (increase maintenance and equipment life span). The choice of the pretreatment(s) technology(ies) impacts greatly in the fermentation efficiency, economics, and sustainability. This chapter covers the strategic importance of incorporating solid wastes into anaerobic digestion systems to the global circular economy and the technologies available for the pretreatment of solid biomass for the production of biogas and biohydrogen.

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Correspondence to Eduardo Bittencourt Sydney .

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© 2021 Springer Nature Singapore Pte Ltd.

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Vieira, S. et al. (2021). Pretreatments of Solid Wastes for Anaerobic Digestion and Its Importance for the Circular Economy. In: Baskar, C., Ramakrishna, S., Baskar, S., Sharma, R., Chinnappan, A., Sehrawat, R. (eds) Handbook of Solid Waste Management. Springer, Singapore. https://doi.org/10.1007/978-981-15-7525-9_5-1

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  • DOI: https://doi.org/10.1007/978-981-15-7525-9_5-1

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-15-7525-9

  • Online ISBN: 978-981-15-7525-9

  • eBook Packages: Springer Reference Earth and Environm. ScienceReference Module Physical and Materials ScienceReference Module Earth and Environmental Sciences

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