This project in São Paulo, Brazil, encompassed the region bounded by the sewer basin of Vale do Anhangabaú, which had experienced such
rapid urban growth that underground sewage infrastructure had become damaged. The fear was that the networks would not be able to
handle increased sewerage flow and overflow various sections of the basin, which would be a disaster since there were no valves to control
the sewerage flow along the lines.
Sabesp used SewerGEMS for the hydraulic modeling of the entire sewer network, which provided elaborate simulations that would
have taken months using traditional methods. Simulations were prepared for various scenarios to demonstrate that the improved system
would be able to meet demand in even the most extreme conditions. The estimated project cost was BRL 30 million, but the actual cost to
implement was BRL 5 million.
Guwahati is the largest city in Assam, serving as the gateway to northeastern India. The public water supply within Guwahati covered
only about 30 percent of the city, and also experienced high water leakage and severe availability restraints. The goal of this INR 180
billion project was to construct waterworks facilities in four sectors of the city that will deliver piped filtered water for 100 percent of the
Guwahati population by 2025.
Using WaterGEMS, NJS Engineers India reviewed the hydraulic models and provided recommendations to the contractors. The high-pressure concerns in the distribution network were addressed by installing pressure-reducing valves or break-pressure tanks in the system,
which entailed minor modifications in the pipe network. WaterGEMS was used to identify and rectify high-pressure issues cost effectively.
NJS Engineers India Pvt Ltd. | Guwahati, Assam, India
Water Supply Master Plan for Guwahati Metropolitan Area
Innovation in Water, Wastewater, and Stormwater
Network Modeling and Analysis
Sabesp | São Paulo, Brazil
Improvements in Anhangabaú Sewer Collection System