Cost–Benefit Analysis of Rainwater Harvesting Systems in Bangladesh: A Case Study of Mongla Upazila
DOI:
https://doi.org/10.54536/ajee.v4i1.6388Keywords:
Cost-Benefit Analysis (CBA), Net Present Value, Rainwater Harvesting, Sustainable Development, Water ManagementAbstract
Coastal areas in Bangladesh are finding it harder to get safe, cheap drinking water because saline water is getting in, rainfall is unpredictable, and other water sources are pricey. This study looks at whether it is worthwhile for families to set up Rainwater Harvesting (RWH) systems in Mongla, a salinity area in Bagerhat. This study used a Cost-Benefit Analysis (CBA) to figure out if it pays off. This study looked at things like Net Present Value (NPV) of 293938.6 BDT, Benefit-Cost Ratio (BCR) of 20.9, Internal Rate of Return (IRR) of 236.09%, Health Cost and how long it takes to get money back. The study got info from surveys of 100 people who use RWH and 100 who don’t, including costs for setting up, maintenance, health, and time spent. RWH systems really cut down on the time and money people spend getting water and going to the doctor because of unpurified water. Even if initial costs go up or benefits go down, the system still works well. RWH looks like a cheap and easy way to deal with the drinking water problem in coastal Bangladesh. The study says RWH should be included in the country’s water plans, give poor families money to set up these systems, and train people to keep them running.
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