| Title | Minimization of Resource Consumption and Carbon Footprint of a Circular Organic Waste Valorization System |
|---|---|
| ID_Doc | 21100 |
| Authors | Cobo, S; Dominguez-Ramos, A; Irabien, A |
| Title | Minimization of Resource Consumption and Carbon Footprint of a Circular Organic Waste Valorization System |
| Year | 2018 |
| Published | Acs Sustainable Chemistry & Engineering, 6.0, 3 |
| Abstract | The efficient management of municipal organic waste (OW) will contribute to the transition to a circular economy of nutrients. The goal of this work is to determine the optimal configuration of a waste management system that valorizes the OW generated in Cantabria. The model was developed with the EASETECH and the DNDC softwares, and it assumes that the products generated from the OW (compost, digestate, struvite, and ammonium sulfate) are applied to land to grow corn. The closed-loop perspective of the system is given by the application of these products, which results in a reduction in the consumption of the industrial fertilizers required for the production of food, a fraction of which becomes OW in a later life cycle stage. A superstructure comprising technologies to manage OW was developed. A mixed integer linear programming problem was formulated for the multiobjective optimization of the flows of OW that are sent to each technology according to these objective functions to be minimized: the carbon footprint of the system (CF), the landfill area occupied by OW (LFA), and the consumption of nonrenewable raw materials (NR-RM). It was found that a combination of different technologies is required to attain a trade-off between the objective functions. The minimization of the CF leads to a system configuration with a high N circularity and the maximal values of LFA and NR-RM, whereas the minimal consumption of NR-RM is achieved at the scenarios with low N recovery rates. This indicates that an enhanced circularity of resources does not necessarily entail that the overall consumption of natural resources and the emission of environmental burdens of the system decrease. |
Similar Articles
| ID | Score | Article |
|---|---|---|
12738
|
Cobo, S; Dominguez-Ramos, A; Irabien, A Trade-Offs between Nutrient Circularity and Environmental Impacts in the Management of Organic Waste(2018)Environmental Science & Technology, 52.0, 19 | |
| 9675
|
Cobo, S; Levis, JW; Dominguez-Ramos, A; Irabien, A Economics of Enhancing Nutrient Circularity in an Organic Waste Valorization System(2019)Environmental Science & Technology, 53.0, 11 | |
| 5269
|
Cobo, S; You, FQ; Dominguez-Ramos, A; Irabien, A Noncooperative Game Theory To Ensure the Marketability of Organic Fertilizers within a Sustainable Circular Economy(2020)Acs Sustainable Chemistry & Engineering, 8, 9 | |
| 17042
|
Oldfield, TL; White, E; Holden, NM The implications of stakeholder perspective for LCA of wasted food and green waste(2018) | |
| 3900
|
Hidalgo, D; Martín-Marroquín, JM; Corona, F A multi-waste management concept as a basis towards a circular economy model(2019) | |
| 8053
|
Chin, MY; Lee, CT; Woon, KS Developing Circular Waste Management Strategies Based on a Waste Eco-Park Concept: A Multiobjective Optimization with Environmental, Economic, and Social Trade-offs(2023)Industrial & Engineering Chemistry Research, 62, 41 | |
| 2870
|
Rathore, P; Sarmah, SP Economic, environmental and social optimization of solid waste management in the context of circular economy(2020) | |
| 28786
|
Rodríguez-Espinosa, T; Papamichael, I; Voukkali, I; Gimeno, AP; Candel, MBA; Navarro-Pedreño, J; Zorpas, AA; Lucas, IG Nitrogen management in farming systems under the use of agricultural wastes and circular economy(2023) | |
| 26183
|
Edirisinghe, LGLM; de Alwis, AAP; Prakash, S; Wijayasundara, M Optimizing material circularity pathways in industrial waste streams: A decision-making model(2024) | |
| 10187
|
Boffardi, R; De Simone, L; De Pascale, A; Ioppolo, G; Arbolino, R Best-compromise solutions for waste management: Decision support system for policymaking(2021) |