50 lakh MT of legacy waste cleared through bio mining in Chennai: CM Stalin

Why in news

Chief Minister M.K. Stalin announced that the Greater Chennai Corporation (GCC) successfully cleared 50 lakh metric tonnes of legacy waste using bio mining to eliminate landfilling.

Background

The Greater Chennai Corporation (GCC) utilized bio mining technology from Blue Planet Environmental Solutions to clear the Perungudi dumpyard. The project aims to clear all remaining waste by February 2027.

Facts for Prelims

• Fact50 lakh metric tonnes of legacy waste cleared through bio mining
• FactTarget date for clearing remaining waste: February 2027
• S&TBio mining: A process used to eliminate landfilling and promote efficient waste processing

For Mains

Q. Discuss the significance of bio mining in managing legacy waste and its role in achieving sustainable urban waste management in Indian metropolitan cities.

Dimensions to cover in your answer

• Technical bottleneck: High capital intensity and logistical complexity of processing large-scale legacy waste
• Environmental risk: Mitigation of groundwater contamination and methane emissions from unmanaged dumpyards
• Policy shift: Transition from landfill-centric models to circular economy waste processing

Keywords: Legacy waste · Bio mining · Circular economy · Urban waste management · Landfill remediation

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