Sanitation Systems in Unsewered Cities: A Field Study in Rajshahi, Bangladesh
My project focused on developing a methodology for spatially representing sanitation systems in unsewered cities in the global south. I have spent three weeks over the months of July and August 2022 doing fieldwork to validate a prototype developed using open-source data for a small area of Rajshahi city in northwest Bangladesh. The sole sanitation system in this city is comprised of individually controlled and maintained onsite septic tanks and pits.
The aim of the fieldwork was to find out how effective the methodology is at mapping faecal matter sources and their movement. The informal usage of the city’s storm drainage network is the way of supernatant fluid movement; in some situations or in certain portions (older part) of the city, faecal solids are also carried out of the city via those drains.
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