Co-digestion and co-treatment of sewage and organic waste in mainstream anaerobic reactors: operational insights and future perspectives.

Autor: Pérez HJV; School of Civil Engineering, University of Costa Rica (UCR), Research City, San Pedro, Montes de Oca, 11501, San José, Costa Rica. henry.vilchez@ucr.ac.cr., de Souza CL; Department of Sanitary and Environmental Engineering, Universidade Federal de Minas Gerais (UFMG), Av. Antônio Carlos, Belo Horizonte, MG, 6627, Brazil., Passos F; GEMMA-Group of Environmental Engineering and Microbiology, Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya-BarcelonaTech, C/Jordi Girona, 1-3, Building D1, 08034, Barcelona, Spain., Roman MB; School of Biosystems Engineering, University of Costa Rica (UCR), Research City, San Pedro, Montes de Oca, 11501, San José, Costa Rica., Mora EJC; School of Civil Engineering, University of Costa Rica (UCR), Research City, San Pedro, Montes de Oca, 11501, San José, Costa Rica.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2024 Oct; Vol. 31 (49), pp. 58687-58719. Date of Electronic Publication: 2024 Sep 24.
DOI: 10.1007/s11356-024-34918-y
Abstrakt: The global shift towards sustainable waste management has led to an intensified exploration of co-digestion and co-treatment of sewage and organic waste using anaerobic reactors. This review advocates for an integrated approach where organic waste is treated along with the sewage stream, as a promising solution to collect, treat, and dispose of organic waste, thereby reducing the environmental and economic burden on municipalities. Various efforts, ranging from laboratory to full-scale studies, have been undertaken to assess the feasibility and impacts of co-digestion or co-management of sewage and organic waste, using technologies such as up-flow anaerobic sludge blankets or anaerobic membrane bioreactors. However, there has been no consensus on a standardized definition of co-digestion, nor a comprehensive understanding of its impacts. In this paper, we present a comprehensive review of the state-of-the-art in liquid anaerobic co-digestion systems, which typically operate at 1.1% total solids. The research aims to investigate how the integration of organic waste into mainstream anaerobic-based sewage treatment plants has the potential to enhance the sustainability of both sewage and organic waste management. In addition, utilizing the surplus capacity of existing anaerobic reactors leads to significant increases in methane production ranging from 190 to 388% (v/v). However, it should be noted that certain challenges may arise, such as the necessity for the development of tailored strategies and regulatory frameworks to enhance co-digestion practices and address the inherent challenges.
(© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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