Image Source : The Statesman
In a major stride toward sustainable urban sanitation and river rejuvenation, Delhi Chief Minister Arvind Kejriwal inaugurated a state-of-the-art biogas plant on September 21, 2025, aimed at processing organic waste and reducing pollution in the Yamuna River. Built at a cost of Rs 16 crore, the facility is located near the Kondli sewage treatment complex and is expected to play a pivotal role in converting sludge and organic waste into clean energy while curbing the discharge of untreated waste into the river.
The inauguration marks a key milestone in Delhi’s multi-pronged Yamuna Action Plan, which includes sewage treatment upgrades, decentralised waste management, and community engagement. The biogas plant is designed to process 150 tonnes of organic waste daily and generate methane-rich gas for power and cooking applications.
Key Highlights From The Biogas Plant Launch
• Delhi CM Arvind Kejriwal inaugurated the Rs 16 crore biogas facility near Kondli STP
• The plant will process 150 tonnes of organic waste per day, reducing sludge discharge into the Yamuna
• Methane generated will be used for electricity and cooking fuel, supporting circular economy goals
• The project is part of Delhi’s broader Yamuna cleanup strategy, which includes 35 STPs and 7 decentralised waste hubs
• The plant is expected to reduce carbon emissions by 3,000 tonnes annually
Technology Meets Ecology
The biogas plant uses anaerobic digestion technology to break down organic waste, including kitchen scraps, market refuse, and sewage sludge. The process produces biogas—a mixture of methane and carbon dioxide—which can be purified and used as a renewable energy source. The residual slurry is converted into organic compost, further supporting urban agriculture and landscaping.
Key technical features include:
• Automated waste segregation and feedstock preparation
• Temperature-controlled digesters for optimal microbial activity
• Gas purification units to remove hydrogen sulfide and moisture
• Slurry drying and composting modules for solid waste reuse
The plant is integrated with the Kondli STP, allowing for seamless transfer of sludge and reducing the load on conventional treatment systems.
Environmental And Public Health Benefits
The biogas facility is expected to deliver multiple environmental and health benefits:
• Reduction in untreated waste entering the Yamuna, improving water quality
• Lower methane emissions from open dumping, mitigating climate impact
• Decreased reliance on fossil fuels for cooking and electricity
• Improved sanitation in surrounding areas through better waste handling
• Enhanced awareness and participation in waste segregation and composting
Officials estimate that the plant will prevent over 3,000 tonnes of carbon emissions annually and reduce the biochemical oxygen demand (BOD) load on the Yamuna by 15 percent in the eastern corridor.
Community Engagement And Employment
The Delhi government has partnered with local municipal bodies and NGOs to ensure community participation in the plant’s operations. Residents from nearby colonies will be trained in waste segregation, composting, and biogas usage. The facility is also expected to generate employment for over 100 workers, including technicians, sanitation staff, and outreach coordinators.
Special awareness drives are being planned in schools and markets to promote responsible waste disposal and highlight the link between household habits and river health.
Political And Strategic Significance
The inauguration comes ahead of Delhi’s municipal elections and is seen as a strategic move to showcase the government’s commitment to environmental sustainability. CM Kejriwal reiterated that cleaning the Yamuna is not just a political promise but a moral obligation. He called on citizens to support the initiative by adopting eco-friendly practices and holding authorities accountable.
Looking Ahead
The Kondli biogas plant is the first of five such facilities planned under Delhi’s Green Infrastructure Mission. Future plants will be located near Okhla, Najafgarh, and Wazirabad, with a combined processing capacity of 800 tonnes per day. Together, they aim to transform Delhi’s waste management landscape and restore the Yamuna to ecological health.
Sources: Hindustan Times, The Indian Express, Dainik Jagran.
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