Abstract
The increasing nature of biomedical waste and its improper disposal has become a significant concern, resulting in a negative impact on the environment. These are associated with the direct consumption of input materials along with generated co-products and wastewater. This paper aims to address the environmental burden of existing biomedical waste management in the northern part of India. It also aims to suggest some constructive steps which result in a less impactful environment through the Life cycle Assessment (LCA) methodology. LCA is a widely used sustainable assessment tool to evaluate the environmental performance of various waste management systems. The present study's functional unit is all the waste collected at a common treatment and disposal facility. A gate-to-gate approach has been performed based on the foreground data gathered from field surveys, semi-structured interviews, and background data of Eco invent database v1.03. The data has been further evaluated using LCA software SimaPro 9.1.0.4 utilizing the CML-IA impact assessment method. The impact categories include Abiotic Depletion (AD), Abiotic Depletion (fossil fuels) (ADF), Global Warming (GWP), Ozone Layer Depletion (OLD), Human Toxicity (HT), Freshwater Aquatic Ecotoxicity (FAE), Marine Aquatic Ecotoxicity (MAE), Terrestrial Ecotoxicity (TE), Photochemical Oxidation (PO), Acidification (AF), and Eutrophication (EP). The results indicate that the integrated system, including incineration with energy recovery, autoclave-shredder, chemical disinfection, and Effluent Treatment Plant (ETP), reduces the environmental burden compared to the present state. The reliability of the model is tested using sensitivity and uncertainty analysis. The analysis identifies the influential key processes, parameters, and impact categories. This paper suggests that LCA is a beneficial tool for the decision-makers and managers to take strategic decisions for reducing environmental burden and developing a life cycle inventory database for the developed economies.
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