Wastewater Flow Monitoring for Mumbai, India
Written by:
A. R. Perks, P.Eng., FEIC; Director, R.V. Anderson Associates Limited, Ottawa
G. A. Bauer, P.Eng., Sr. Associate, R.V. Anderson Associates Limited, Ottawa
S. Devnani, P.Eng., Sr. Associate, R.V. Anderson Associates Limited, Mumbai, India
N . Bhambane FIE, PHE Consultants, Mumbai, India
June, 2006
As part of the preparation of a wastewater master plan for Mumbai, India, a megacity of 12 million inhabitants, information on sewer flows was needed for planning and design purposes. Over a 30-month period, more than 110 sites were instrumented, and the resulting data was analyzed to detect land use trends, and daily, weekly and seasonal patterns of flow generation. The results were employed to calibrate hydraulic models of the districts and wards in the city, and to project growth-related needs for wastewater conveyance and treatment facilities. This paper describes the monitoring program carried out, the main difficulties encountered, and some of the key findings.