Pilot-scale study demonstrates effective pollutant removal and 90% lower operational costs in domestic wastewater, highlighting a viable decentralized solution for non-potable reuse.
Key Points
To evaluate the operational performance, treatment stability, and techno-economic feasibility of an automated, sensor-based anaerobic bio-decentralised sewage treatment plant for domestic wastewater management.
Designed and operated a 10 m³/day (10 KLD) pilot-scale plant integrating anaerobic biological treatment with sand filtration, activated carbon filtration, and ozonation, completely omitting aeration and chemical dosing.
Evaluated performance over a 30-day period under domestic wastewater conditions with diurnal flow variations, monitoring biochemical oxygen demand (BOD) and chemical oxygen demand (COD).
Achieved consistent reductions in organic pollutants and suspended solids, producing effluent compliant with Central Pollution Control Board (CPCB) standards for non-potable reuse.
Demonstrated approximately 90% lower operational and maintenance costs compared to conventional sewage treatment technologies due to the elimination of aeration, low sludge production, and automated operation.