Why is biodegradability important when choosing how to process waste in India?

In India, biodegradability is a fundamental factor in solid-waste management because it dictates the appropriate processing method for different waste streams. Under the Solid Waste Management Rules, waste must be segregated at the source to ensure that organic materials—such as food scraps, vegetable peels, and plant matter—are treated through biological processes like composting or biogas production, ideally as close to the source as possible.12

This distinction is essential for environmental and public health. By processing biodegradable waste locally, authorities can reduce the volume of refuse sent to landfills, thereby mitigating risks such as groundwater contamination, methane emissions, and the spread of disease associated with poorly managed dump sites. Conversely, nonbiodegradable waste is routed to material recovery facilities for recycling or energy recovery, with sanitary landfills reserved only as a last resort for residual waste. Prioritizing the correct treatment based on biodegradability is a critical step in minimizing the environmental footprint of India's rapidly growing urban and rural waste output.2345