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Overview of municipal solid waste management in sub-tropical climatic region of North Eastern India

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Abstract

Municipal solid waste management (MSWM) is perceived as a global issue regardless of the place of waste generation. The amount of unmanaged waste is increasing rapidly, along with its impact on the environment and human health. In hilly areas, specifically the North Eastern Region (NER) states of India, due to the unique topography coupled with socio-economic factors, there are inadequate waste management practices marked by insufficient infrastructure, minimal research studies, and limited data availability. This paper comprehensively reviews the existing status of MSWM practices and waste treatment technologies, identifies the challenges, and discusses the prospective approaches for MSWM in NER states of India. NER, is characterized by its hilly terrain and has the most diverse demographic profile in the country. The study highlights the notable increase in waste generation in the urban population in NER. The total amount of waste generated in NER is about 2907 tons per day, with a collection rate of 86.96%, treatment at 31.09%, and landfilling at 33.67%. The biodegradable fraction makes up the majority of waste composition (more than 50%) in NER, followed by recyclables and inert. The existing MSWM consists of waste collection, transportation, and disposal with limited source segregation and treatment. All the states of NER practice open dum** and burning as the primary waste treatment and disposal system. The study discusses the challenges and prospects to ensure effective MSWM in NER. This review is a region-specific study that considers cultural diversity, topography, and socio-economic dynamics. The outcome of this review will be helpful to the researchers and policymakers in making appropriate waste management plans and improve the MSWM system in NER.

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All authors contributed to the study conception and design. Material preparation, literature search, data collection, and analysis were performed by Moanaro Ao. The first draft of the manuscript was written by Moanaro Ao, and Nzanthung Ngullie commented on previous versions of the manuscript. All authors read the revised manuscript, participated in the final revision, and approved the final manuscript for submission. The supervision of the manuscript was performed by Nzanthung Ngullie.

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Correspondence to Nzanthung Ngullie.

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Ao, M., Ngullie, N. Overview of municipal solid waste management in sub-tropical climatic region of North Eastern India. Environ Sci Pollut Res 31, 23307–23321 (2024). https://doi.org/10.1007/s11356-024-32689-0

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  • DOI: https://doi.org/10.1007/s11356-024-32689-0

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