Date of Award

Spring 2017

Document Type

Thesis

Publisher

Santa Clara : Santa Clara University, 2017.

Department

Civil Engineering

First Advisor

Steven Chiesa

Second Advisor

Hisham Said

Third Advisor

Karen Pachmayer

Abstract

Sixteen activated sludge tanks, eight secondary clarifiers, and four return pump stations were designed for the Vrishabhavathi Wastewater Treatment plant in Bangalore India. The design included tank dimensions, mechanical equipment associated with each component, pipe sizes for the piping system, and a cost estimate with a construction schedule. The activate sludge tanks were designed to be made of reinforced concrete with a mechanical air diffuser system installed for oxidation purposes. The secondary clarifiers were designed using reinforced concrete and a mechanical sweeping mechanism to scrape up the sludge as it settles to the bottom of the tank. Return pump stations were designed to transport the sludge into recirculation pipes or to a waste activated sludge stream. The treated water from the expanded facility will be discharged back into the river or transported to a tertiary treatment facility on site. The effluent will act as a source of non-potable water for local urban and agricultural use. Construction of the proposed facility will not interfere with the operation of the existing plant. This expansion to the existing facility will provide the city of Bangalore with an additional 71.33 million gallons per day of fresh, not-potable water.

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