Rainwater Harvesting for Domestic Consumption in Bangladesh

Ifte Choudhury, Associate Professor & Fulbright Scholar Department of Construction Science. Texas A&M University College Station, TX 77843-3137
i-choudhury@tamu.edu

Farzana Sultana, Project Manager Vaughn Construction, 10355 Westpark Drive Houston, Texas 77042

ABSTRACT
Bangladesh has continuously evolving problem with water supplies, not adequate to meet even the minimum requirements for potable water. Surface water is being incessantly contaminated by both industrial and human pollutions; rapidly increasing demands due to population explosion results in withdrawal of ground water at a faster rate than it is replenished by recharge. This problem can easily be mitigated through rainwater harvesting, taking advantage of high quantities of rainfall in the country. This study explores the possibility of rainwater harvesting for domestic consumption in urban areas of Bangladesh and proposes some guidelines to compute storage requirements. Based on these guidelines, computation methods for determining the quantities of rainwater available for collection in different urban regions of Bangladesh and adequacy of those quantities for residential consumption have been determined. These tools can be used for (1) determining the quantities of rainwater required for domestic consumption in urban areas of Bangladesh and (2) size of cisterns for storage of the rainwater.

Key words: Bangladesh, Computation of Water Requirements, Rainwater Harvesting.

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