A laboratory-scale phytocover system for municipal solid waste landfills

Khapre, Abhishek; Khan, Sadaf Aiman; Kumar, Sunil

doi:10.1080/09593330.2021.1931470

Cited by 2 publications

(1 citation statement)

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“…Landfilling is the most common municipal solid waste (MSW) management practice because of its low cost and relatively minimal maintenance requirements. , Globally, approximately 70% of solid waste ends up in a landfill, while in the United States this figure is 50%, and in China, it is even higher at 80%. − Waste degrades in landfills and produces byproducts (e.g., greenhouse gases, toxic leachate). ,− If not properly managed, landfills can become a significant source of contamination, polluting the surrounding soil, groundwater, air, and surface water. , Thus, there is an increasing focus on gaining deeper insights into the environmental impacts of landfills along with identifying ways to enhance the efficiency of their operations. Prior studies have shown that the overall environmental, social, and economic impacts of landfilling can be characterized by life cycle assessment (LCA) .…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Ecological Footprint of Landfills: A Framework and Case Study of Fargo, North Dakota

Graupman,

Vikesland,

Bolyard

et al. 2023

Environ. Sci. Technol.

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There is growing interest in better understanding the environmental impacts of landfills and optimizing their operation. Accordingly, we developed a holistic framework to calculate a landfill's Ecological Footprint (EF) and applied that to the Fargo, North Dakota, landfill. Parallelly, the carbon footprint and biocapacity of the landfill were calculated. We calculated the EF for six scenarios (i.e., cropland, grazing land, marine land, inland fishing ground, forest land, and built land as land types) and six operational strategies typical for landfills. Operational strategies were selected based on the variations of landfill equipment, the gas collection system, efficiency, the occurrence of fugitive emissions, and flaring. The annual EF values range from 124 to 213,717 global hectares depending on land type and operational strategy. Carbon footprints constituted 28.01−99.98% of total EF, mainly driven by fugitive emissions and landfill equipment. For example, each percent increase in Fargo landfill's fugitive emissions caused the carbon footprint to rise by 2130 global hectares (4460 tons CO 2 e). While the landfill has biocapacity as grazing grass in open spaces, it remains unused/ inaccessible. By leveraging the EF framework for landfills, operators can identify the primary elements contributing to a landfill's environmental impact, thereby minimizing it.

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