Fuente: WIPO "organic farming" The present invention, relates to a modular toilet system designed to provide a sustainable, waterless, and eco-friendly sanitation solution The system employs a two-tier chamber arrangement utilizing a specially formulated bacterial culture to treat human waste, transforming it into an odorless, pathogen-free, nutrient-rich liquid organic fertilizer suitable for agricultural applications. The modular toilet system comprising: a toilet bowl seat configured to receive human waste, including urine and faeces; a two-tier chamber arrangement comprising an upper first chamber and a lower second chamber, wherein the upper first chamber is disposed beneath the toilet bowl seat and configured to collect and treat human waste using a specially formulated bacterial culture, and the lower second chamber is configured to collect and store liquid organic fertilizer.