Multibranch Modelling of Flow and Water Quality in the Dhaka River System, Bangladesh: Impacts of Future Development Plans and Climate Change

The rivers of Dhaka, Bangladesh, suffer high levels of pollution from untreated sewage and industrial effluent. To address this, over the next 20 years, the government is planning to install 12 large Sewage Treatment Plants (STPs) across the Dhaka River System. This paper applies a water quality model to assess the efficacy of this planned investment. The model suggests that the STPs will improve water quality in the most densely populated areas of the city along the Turag and Buriganga rivers, and in some other parts of the city (Tongi Khal). However, future upgrades will be needed to improve dissolved oxygen levels more widely, due to predicted population growth. Policies to reduce industrial pollution should also be pursued.

Hydrogeologic Constraints for Drinking Water Security in Southwest Coastal Bangladesh: Implications for Sustainable Development Goal 6.1

This article analyzes drinking water security in southwest coastal Bangladesh, through an in-depth field investigation. It reveals that the exponential growth of groundwater-based technologies, such as tube wells, does not necessarily indicate the actual safe drinking water coverage in coastal areas, due to complex hydrogeology with the high spatial variability of groundwater salinity risks.

REACH Exit Strategy

REACH’s Exit Strategy scopes out actions to promote the legacy of the programme, highlighting opportunities to sustain, scale-up, and scale-out our work.

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