Faecal sludge management (FSM) is the collection, transport, and treatment of faecal sludge from pit latrines, septic tanks or other onsite sanitation systems. FSM is necessary in densely populated areas where a part of the population is not connected to a sewerage network, and the covering and rebuilding of pit latrines is not possible.
The Faecal Sludge Treatment Plant (FSTP) is based on the Tiger Bio Filter technology. It comprises of five main processes:
- Screening
- Anaerobic digestion
- Vermifiltration-I – Residual solid and liquid separation
- Vermifiltration-II – Wastewater treatment
- Polishing – Tertiary treatment