On site containment-based Toilets: Innovative technological, biochemical, or nature-based interventions for expediting in-situ treatment of excreta without harming environment/ water table

Individual Household Latrine (IHHL): Ensuring construction and sustained usage of individual household latrines in rural India remains a challenge due to behavioural resistance, water scarcity, structural quality issues, and lack of monitoring mechanisms. Background: SBM(G) promotes in-situ treatment-based sanitation systems that safely contain and treat excreta at the source without requiring mechanized emptying, transportation or centralized treatment. However, there is a need to further improve the efficiency of these systems by accelerating waste decomposition, enhancing pathogen reduction and minimizing sludge accumulation. The problem seeks innovative technological, biochemical, or nature-based solutions that can strengthen in-situ treatment performance while remaining affordable, sustainable and suitable for rural contexts. Description: Innovate technological, biochemical, or nature-based solutions that can accelerate in-situ treatment and stabilization of excreta, enhance pathogen reduction, improve nutrient recovery and minimize environmental risks without adversely affecting soil quality or the water table. The proposed interventions should be cost-effective, scalable and suitable for diverse rural settings. Expected Solution: A cost-effective, scalable and environmentally safe in-situ excreta treatment solution that accelerates stabilization, reduces pathogens, enhances nutrient recovery and protects soil and groundwater quality across diverse rural settings. Potential Impact: Safer sanitation for rural households; lower Green House Gases (GHGs) emissions; improved compost use in agriculture.