Introduction
Rajasthan has built multiple faecal sludge treatment plants (FSTPs), both thermal and passive, but many in its small towns are under-used, several operating below 30% of capacity. Desludging is largely emergency-driven, operators are unregulated, service catchments are unclear and logistics between municipalities and Gram Panchayats are disconnected, so sludge is often disposed of unsafely instead of reaching the plants. Households across the state’s arid and semi-arid towns depend predominantly on septic tanks and pits.
Project info
- Client: Asian Institute of Technology – Global Water & Sanitation Center (AIT-GWSC)
- Funder / programme: Gates Foundation grant
- Period: Jul 2024 – Nov 2024
- Location: Urban local bodies and surrounding Gram Panchayats, Rajasthan, India
Scope
The project assessed how to improve the operational sustainability of newly launched FSTPs and sewage treatment plants, many located at remote landfill sites. It focused on scheduled desludging, better FSTP utilisation, operator regulation and digital monitoring. The work covered behavioural barriers, desludging gaps, incentive-based service models, tariff reform, private operator compliance and sludge conveyance.
Spatial data, operational diagnostics, behaviour change insights and policy recommendations were combined into a citywide framework for safe containment management. The aim was a predictable, environmentally safe desludging system that delivers steady inflow to the plants, better public health outcomes and financially viable operations for urban local bodies (ULBs).
Did You Know?
- Several Rajasthan towns operate FSTPs at below 30% utilisation, largely due to irregular desludging cycles.
- Emergency desludging accounts for the majority of service requests, leading to unsafe disposal and tank failures.
- Rajasthan’s thermal FSTPs provide unique opportunities for real-time remote learning, supported by digital tools and virtual walkthroughs.
Services Delivered
Service Chain Diagnostics
The team carried out desludging diagnostics, containment surveys, stakeholder consultations with ULBs, Gram Panchayats and FSTP operators, and mapping of the private operator ecosystem. Spatial and operational data were analysed to identify critical gaps and prioritise interventions across ULBs.
Waterlogging Risk
Rajasthan faces limited large-scale flooding, but low-lying pockets and settlements near nallahs and natural depressions experience seasonal water accumulation. Area-specific risk assessments informed containment improvement guidelines and desludging priorities for these neighbourhoods.
Wastewater Management
The team reviewed sanitation systems across towns, assessed FSTP loading patterns and analysed existing conveyance routes. Recommendations covered desludging access, regulation of private operators and consistent, safe inflow to both passive and thermal FSTPs.
Virtual Tour of Thermal FSTP with AI Chatbot
An interactive virtual tour of a thermal FSTP in Rajasthan was developed, with an AI chatbot that guides officials, contractors and operators through plant components, operating steps, safety procedures and good practice. The tool serves as a continuing learning platform for state-wide capacity building.
Schematic Dashboard for Contractor Implementation
A schematic dashboard framework was prepared to guide the project contractor in building spatial, interactive dashboards for all participating towns. The template sets out data layers, workflows, performance indicators, risk maps and monitoring features so that digital reporting is consistent across ULBs.
Regulatory Reform Recommendations
The project recommended desludging by-laws, penalties for illegal dumping, licensing procedures, tariff rationalisation and monitoring protocols to make sanitation governance more transparent and accountable.
Results
- Draft and final feasibility studies delivered on optimising existing FSTP capacity, desludging services and plant operations.
- Model memoranda of understanding drafted between municipalities and Gram Panchayats to formalise shared treatment catchments and extend FSTP services to surrounding rural areas.
- Private vacuum truck operators mapped and enumerated, with a framework for bringing them into regulated desludging.
- Virtual tour of a thermal FSTP with an AI chatbot, and a schematic dashboard framework for the contractor, handed over.
- Regulatory package recommended: desludging by-laws, penalties for illegal dumping, licensing and tariff rationalisation.
Work Illustration
The analytical framework combined service chain diagnostics with behavioural insights and spatial assessment to identify desludging challenges across the towns. Settlement density, accessibility, operator presence and containment practices were mapped to show areas exposed to service gaps and unsafe disposal.
The analysis set out the operational barriers in each ULB, so that neighbourhoods could be prioritised for scheduled desludging, targeted information, education and communication (IEC), operator regulation and FSTP loading optimisation. Together, these findings form the basis of a stronger citywide inclusive sanitation (CWIS) operating model for Rajasthan’s towns.
