Environmental performance of dewatered sewage sludge digestate utilization based on life cycle assessment

Life Cycle Stages Sewage Composting Combustion Life Cycle Assessment /dk/atira/pure/sustainabledevelopmentgoals/responsible_consumption_and_production; name=SDG 12 - Responsible Consumption and Production 01 natural sciences 7. Clean energy SDG 11 - Sustainable Cities and Communities 6. Clean water 12. Responsible consumption /dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy; name=SDG 7 - Affordable and Clean Energy 13. Climate action 11. Sustainability and Infrastructure Animals Cities Sewage sludge SDG 12 - Responsible Consumption and Production Innovation SDG 9 - Industry Pyrolysis 0105 earth and related environmental sciences
DOI: 10.1016/j.wasman.2021.11.005 Publication Date: 2021-11-17T22:21:16Z
ABSTRACT
Due to the global trend of urbanization, the amount of sewage water is increasing in cities. This calls for efficient treatment of the resulting sewage sludge. To date, in the 27 European Union member countries (EU-27), the prevailing treatment method is application on arable land. Anaerobic digestion is one of the treatment methods being increasingly used nowadays. However, the resulting digestate requires further utilization. Therefore, in this study, the environmental performance of composting, combustion, and pyrolysis options for dewatered sewage sludge digestate is evaluated based on a life cycle assessment. The results show that digestate combustion and composting performed better than pyrolysis for most of the selected impact categories. However, pyrolysis of sewage sludge is still under development, and there are, to some degree, uncertainties in the data related to this technology; thus, more information for the performance assessment of pyrolysis is still required.
SUPPLEMENTAL MATERIAL
Coming soon ....
REFERENCES (85)
CITATIONS (59)
EXTERNAL LINKS
PlumX Metrics
RECOMMENDATIONS
FAIR ASSESSMENT
Coming soon ....
JUPYTER LAB
Coming soon ....