The Sky Waterfall: Water purification tower
Atmosphere and Agency
Supervisor - Mr. Oscar Carracedo
Anthropogenic activities have been affecting natural hydrology and ecology system in Khulna, Bangladesh. Being the third largest urban city in the nation, Khulna is expected to experience high population influx and dense urban development, turning the “pond city” from a sustainable green city into a concrete place with excessive artificial infrastructures in 2050. Artificial rainwater management system would not be a sustainable method where the issue of waterlogging is expected to cause almost half of Khulna in damaging flood levels. Moreover, high rainfall intensity as a result of climate change would worsen the scenario of urban waterlogging. The stagnant water would not only occupy the valuable city space, causing land scarcity, but also contaminates clean water source and brings the issue of water scarcity during monsoon seasons. Hence, Khulna needs a more sustainable rainwater management system that solves the issue of waterlogging, as well as turns stagnant water into clean water source that benefits the city. One possible solution to achieve a more sustainable stormwater management is to apply Green Infrastructure (GI) to the urban context. With the focus on waterlogging issue in 2050 KCC, prototype of rainwater purification tower is proposed alongside with city-scale water management network to solve the issue of waterlogging, hence ultimately tackle the issue of land and water scarcity.
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