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How is municipal solid waste managed through segregation, collection, processing, and disposal in India?

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solid-waste management Bulldozers working on a sanitary landfill.

Municipal solid waste management in India is governed by the Solid Waste Management Rules, which mandate a systematic approach to handling garbage from generation to disposal.12

Segregation and Collection

Waste generators must segregate waste at the source into four categories: wet (biodegradable), dry (recyclable), sanitary, and special-care (hazardous domestic) waste. Collection is primarily conducted through door-to-door systems managed by local bodies, contracted agencies, or informal collectors. In rural areas, the gram panchayat oversees decentralized, community-based collection.13

Processing and Disposal

Wet Waste: Ideally processed on-site through composting or biogas production.1
Dry Waste: Routed to material recovery facilities for sorting and recycling.13
High-Caloric Waste: Materials that cannot be recycled may be incinerated or used in cement kilns for energy recovery.1
Residual Waste: Only waste that cannot be reused, recycled, or recovered is sent to sanitary landfills.13

Despite this framework, challenges such as inconsistent source segregation and inadequate processing capacity persist, leading to significant amounts of waste being dumped in landfills or open areas.4