| Popis: |
The generation of Construction and Demolition (C&D) waste, which forms 30% of total Solid Waste, adds to the non-biodegradable component of inert waste. Majorly produced by the construction industry, this waste has a recycle value for the same industry. By proper fragmentation, treatment and disposal/recycle, demolition debris has a huge scope for application in landfilling or building non-structural elements like pavement blocks. But the current practice of mixed waste collection and disposal does not explore this potential of C&D waste. The city of Greater Mumbai is facing a crisis due to the limited availability of appropriate wasteland within the city. The authorities have stalled any new construction projects due to lack of operational dump sites. With a view to have separate landfill sites for C&D waste, and to identify the sites that could be available for the next 20–25 years, spatial analysis has been carried out in this study using ArcGIS. The criteria used for mapping sites include the buffer distance from water bodies, wells, forests, residences, heritage sites, airport, and roadways and site area. Site selection results have been processed further using Analytical Hierarchy Process (AHP) to identify and prioritize the limited number of sites that could be developed for future demands. This study would help town planning departments to identify land for waste processing and collection centers in other congested cities of India which are major contributors to Solid Waste. |
