Trade-Offs between Nutrient Circularity and Environmental Impacts in the Management of Organic Waste

Environmental Science & Technology
Selene CoboAngel Irabien

Abstract

Measuring the circularity of resources is essential to assessing the performance of a circular economy. This work aims at proposing an indicator that quantifies how effective a system is at extending the lifetime of its waste components after they have been discarded. The developed indicator was applied to study the circularity of nutrients within a system that handles the organic waste (OW) generated in the Spanish region of Cantabria. A superstructure was developed to determine the optimal configuration of the system. It is composed of alternative unit processes for (1) the management of OW and (2) the application of the recovered products as soil amendment to grow corn. A multiobjective mixed integer linear programming problem was formulated under two policy scenarios with different source separation rates. The problem was optimized according to six objective functions: the circularity indicators of carbon, nitrogen, and phosphorus, which are maximized, and their associated environmental impacts to be minimized (global warming, marine eutrophication, and freshwater eutrophication). The model was fed with the life cycle assessment results obtained with the Environmental Assessment System for Environmental TECHnologies (EASETE...Continue Reading

References

Jul 26, 2005·Science·Jonathan A FoleyPeter K Snyder
Apr 26, 2006·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Trine Lund HansenLars Stoumann Jensen
Mar 6, 2012·Waste Management·Marta García-AlbaceteM Carmen Cartagena
Jul 24, 2012·Waste Management·A BernstadJ la Cour Jansen
Jul 10, 2013·Environmental Science & Technology·Davide ToniniThomas Fruergaard Astrup
Oct 2, 2015·Environmental Science & Technology·Marc Delgado-AguilarPere Fullana-I-Palmer
Nov 26, 2015·Nature·Johannes Lehmann, Markus Kleber
Nov 26, 2015·Nature·Xin ZhangYe Shen
Jan 24, 2018·Journal of Cleaner Production·Eleonora CrennaSerenella Sala
Feb 1, 2018·Environmental Science & Technology·Xiaonan WangNilay Shah
Jun 5, 2018·Waste Management·M HauptS Hellweg

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Citations

Mar 7, 2021·The Science of the Total Environment·Mohammad El WaliAndrzej Kraslawski
May 11, 2019·Environmental Science & Technology·Selene CoboAngel Irabien
Apr 25, 2020·The Science of the Total Environment·Asmita ShuklaWillie G Harris

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