Abstract
The life of the inhabitants of the globe is greatly dependant on water. Providing portable water to communities is of prime interest. Scarcity of water is a threat in near future in Pakistan. There is a need to search for alternate sources of water to fulfil the community requirement. Rainwater Harvesting (RWH) system is a better alternative. Keeping in view the vast application of this system, it is adopted as an alternative source of water in a village of Abbottabad city where there is scarcity of water. According to Public Health Engineering Department (PHED), the currently available gravity system and three tube wells are not sufficient to supply water to all the population. For this study, first, the rainfall data is collected and then by using the principle of rainwater harvesting system, the quantity of available water is calculated. The calculations were made using SCS curve number method using mean monthly rainfall depth. From calculation, we found that not only for current population but for population in 2028 can also be served by storing the water that we get from Rainwater Harvesting system if stored in a reservoir. But after 20 years i.e. in 2038, there will be deficiency of 146, 449 gallons per day of water for entire community which can easily be arranged from a small tube well. Therefore, on the basis of this study, it was recommended to the PHED of Abbottabad city to store the rainwater in a reservoir so that it can be easily utilised.
Highlights
Water is the firmest need of the humans for surviving on this planet
The shortage of water is calculated and using the available rainfall data and catchment area characteristics, the water available from rain is calculated using SCS curve number method which will be collected through Rainwater Harvesting (RWH) system
The analysis was started from calculation of the water demand required by the community in the study area followed by the water calculations from rainfall data
Summary
Water is the firmest need of the humans for surviving on this planet. most part of the Earth is covered with water but still there are certain countries where there is shortage of portable water. Different government departments are working for the provision of adequate supply of water to the people of Abbottabad. Main objective of this research study is to identify an alternate technique (Rainwater Harvesting (RWH) system) of water that can reduce this water shortfall and the community can be supplied with sufficient quantity of water. For this purpose, after consultation with PHED a village named Sheikh ul Bandi was selected where there is shortage of water. The collected water from rainfall and the water short fall for present and future population will be compared and discussed
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