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

被引:30
作者
Cobo, Selene [1 ]
Dominguez-Ramos, Antonio [1 ]
Irabien, Angel [1 ]
机构
[1] Univ Cantabria, Dept Chem & Biomol Engn, Ave Castros Sin Nombre, Santander 39005, Spain
关键词
LIFE-CYCLE ASSESSMENT; GREENHOUSE-GAS EMISSIONS; MUNICIPAL SOLID-WASTE; HOUSEHOLD FOOD WASTE; ANAEROBIC-DIGESTION; PHYSICAL PRETREATMENT; LAND APPLICATION; GLOBAL CARBON; SYSTEMS; ENERGY;
D O I
10.1021/acs.est.8b01590
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
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 (EASETECH) version 2.3.6 and the nutrient flows in the agriculture subsystem, which were calculated with Denitrification-Decomposition (DNDC) version 9.5. It was concluded that improving nutrient circularity paradoxically leads to eutrophication impacts and that increasing the SSR of OW has a positive effect on the carbon footprint of the system.
引用
收藏
页码:10923 / 10933
页数:11
相关论文
共 56 条
  • [41] Likens G. E., 1981, Some perspectives of the major biogeochemical cycles., P93
  • [42] Ministerio de Agricultura y Pesca AlimentaciOn y Medio Ambiente, 2017, ENC SUP REND CULT
  • [43] Material flow indicators to measure progress toward a sound material-cycle society
    Moriguchi, Yuichi
    [J]. JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT, 2007, 9 (02) : 112 - 120
  • [44] The role of life cycle assessment in supporting sustainable agri-food systems: A review of the challenges
    Notarnicola, Bruno
    Sala, Serenella
    Anton, Assumpcio
    McLaren, Sarah J.
    Saouter, Erwan
    Sonesson, Ulf
    [J]. JOURNAL OF CLEANER PRODUCTION, 2017, 140 : 399 - 409
  • [45] Rockström J, 2009, ECOL SOC, V14
  • [46] Integrating legacy soil phosphorus into sustainable nutrient management strategies for future food, bioenergy and water security
    Rowe, Helen
    Withers, Paul J. A.
    Baas, Peter
    Chan, Neng Iong
    Doody, Donnacha
    Holiman, Jeff
    Jacobs, Brent
    Li, Haigang
    MacDonald, Graham K.
    McDowell, Richard
    Sharpley, Andrew N.
    Shen, Jianbo
    Taheri, Wendy
    Wallenstein, Matthew
    Weintraub, Michael N.
    [J]. NUTRIENT CYCLING IN AGROECOSYSTEMS, 2016, 104 (03) : 393 - 412
  • [47] Schoumans O. F, 2015, THESIS
  • [48] Review of greenhouse gas emissions from crop production systems and fertilizer management effects
    Snyder, C. S.
    Bruulsema, T. W.
    Jensen, T. L.
    Fixen, P. E.
    [J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 2009, 133 (3-4) : 247 - 266
  • [49] Streamlining scenario analysis and optimization of key choices in value chains using a modular LCA approach
    Steubing, Bernhard
    Mutel, Christopher
    Suter, Florian
    Hellweg, Stefanie
    [J]. INTERNATIONAL JOURNAL OF LIFE CYCLE ASSESSMENT, 2016, 21 (04) : 510 - 522
  • [50] Liquid fertilizer products from anaerobic digestion of food waste: mass, nutrient and energy balance of four digestate liquid treatment systems
    Tampio, Elina
    Marttinen, Sanna
    Rintala, Jukka
    [J]. JOURNAL OF CLEANER PRODUCTION, 2016, 125 : 22 - 32