Biodigesters operate through anaerobic digestion, where bacteria break down organic matter without oxygen to produce methane-rich biogas. This ancient process, now refined with modern engineering, prevents approximately 20-25 tonnes of CO₂ equivalent emissions annually per installation.
The technology requires 50-70 square metres of levelled ground with good drainage, close proximity to kitchens for gas piping, and access to water and electricity. Each project follows a structured 7-month timeline: site survey and permissions (weeks 1-2), plant installation (weeks 3-6), commissioning and training (week 7), followed by 5 months of monitoring and performance audits.
Nirmaan provides comprehensive support including volunteer mobilization, technical training, and donor reporting. The project diverts 25-30 tonnes of organic waste from landfills annually whilst sensitizing over 500 community members to renewable energy principles. This pilot project model is designed for replication across India, creating a network of community-based renewable energy solutions.
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