Problem
Rayerbazar WWTP is a new plant being planned by Dhaka WASA & proposed for Asian Development Bank (ADB) funding. The biggest risk factors for this project were the cost and time related to land constraints and acquisition. Dhaka is a dense city and it was imperative that the footprint of this WWTP be minimized as much as possible.

ADB uses TDG
TDG enabled ADB and Dhaka WASA to generate 10+ concept design options, compared to 2-3 options typically evaluated for a project.
Compact WWTP site-specific options included features like deeper reaction tanks, rectangular vs. circular clarifiers, and a phased facility build-out.
Key Wins
Reduced project risk with 5x more compact design options
Streamlined project planning with data-driven insights
Expedited decision-making from 8-10 months to 8-12 weeks