Context: Kankaria Coaching Depot in Ahmedabad has become India’s first ‘water-neutral’ railway depot by recycling wastewater used in coach washing and maintenance.
About India’s First Water-Neutral Railway Depot:
What it is?
- The Kankaria Coaching Depot in Ahmedabad, Gujarat, is the first railway depot in India to achieve water neutrality by treating and reusing wastewater generated during routine railway coach cleaning and maintenance.
- It minimizes freshwater dependency by ensuring that almost all operational water demand is met through recycled water, promoting sustainable railway infrastructure.
Key Features:
- Phytoremediation-Based Treatment System: The depot uses phytoremediation, an eco-friendly process where specially selected plants naturally absorb pollutants and purify wastewater before reuse.
- Multi-Stage Water Purification: Wastewater passes through wetland treatment, followed by carbon filtration, sand filtration, and ultraviolet (UV) disinfection to ensure safe and efficient reuse.
- Massive Water Conservation: The system saves nearly 1.60 lakh litres of water daily and around 5.84 crore litres annually, significantly reducing freshwater consumption and operational costs.
Significance:
- It demonstrates how Indian Railways can integrate sustainability into infrastructure development while complying with environmental standards.
- By reducing dependence on freshwater resources, the initiative strengthens long-term water conservation and climate adaptation strategies in urban infrastructure.
Relevance in UPSC Exam Syllabus:
- GS Paper 3 – Environment and Disaster Management
- Conservation, environmental pollution and degradation, environmental impact assessment.
- GS Paper 3 – Infrastructure
- Railways, sustainable infrastructure development, resource-efficient public utilities.
- GS Paper 3 – Science and Technology
- Applications of eco-friendly innovations like phytoremediation and wastewater recycling.
