Abstract
This research article focuses on solid waste management in Kathmandu Valley, Nepal, specifically on elucidating waste disposal methodologies at diverse landfill sites. The study investigates the challenges and approaches in solid waste management, including waste segregation, landfill management, and environmental impacts. The research also examines the role of social media in disseminating information about waste management practices to the public. From the study undertaken in Tokha Municipality of Kathmandu Valley around 80% of participants of the survey received information regarding the rule for waste segregation via. Social media platforms indicate the effectiveness of such platforms for information dissemination. The article presents a concise analysis of Gokarna Landfill Site (GLS), Sisdol Landfill Site (SLS), and the newly established Banchare Danda Landfill Site (BDLS) to assess their waste disposal methods and environmental consequences. On average the waste generation of the Kathmandu Metropolitan City (KMC) as of 2013 was 0.66 kg/capita/day out of which almost 100% of the waste collected ends up in landfill sites. The Geographic Information System (GIS) modeling technique was used for the analysis of the landfill capacity of BDLS and the possible waste disposal scenarios. The study’s results highlight the significance of waste categorization and effective communication mediums for proficient waste administration. The study also offers perspectives on landfill architecture, leachate attributes, and the contribution of social media in fostering awareness about waste management. The sensitivity analysis of BDLS