Abstract

AbstractWater is a necessary requirement for survival of the human life. There are numerous sources of pure water located in surface and subsurface of the Earth. But, several human anthropogenic activities have led to pollution of these water sources making raw water unfit for the use. Therefore, the local water supplying authority of the town has the responsibility of treating the raw water from the source before supplying it to the society to facilitate them with clean and palatable water. Henceforth, water treatment plant (WTP) is an essential requirement for any town. The main objective of the current study is to hydraulically design a water treatment plant for the real site. This paper primarily focuses on the proposed hydraulic design for a 4.1 MLD WTP constructed under Akri-barjula water supply scheme in Devprayag town at Tehri Garhwal district, Uttarakhand, India. The project had been launched by Uttarakhand Pey Jal Nigam and M/s Unipro Techno Infrastructure Pvt. Ltd, Chandigarh. In this study, all the necessary units of a WTP have been hydraulically designed considering all the key factors such as source, societal demand and degree of water treatment required. This study will provide a base and aid to the hydraulic engineers to effectively design a real site water treatment plant.KeywordsHydraulic designWater treatment plantPre-settling chamberSecondary settling tankFlocculation unitRapid sand filter

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