Abstract: Water is vital for sustaining all forms of life on earth. Treatment of domestic wastewater before its disposal into the environment was not given much importance until the recent past. This was due to increased contamination rates of surface and ground water sources. Domestic wastewater treatment is becoming even more critical due to diminishing water resources and resulting water scarcity especially during summer in many parts of the country. Aeration is one of the methods which help in the removal of various contaminants present in domestic wastewater. This paper focuses on how the various constituents of waste water vary with aeration. Diffused fine bubble aeration was done in a circular tank at various flow rates (1.5 L/minute, 3 L/minute, 4 L/minute) at time periods of 24 hours, 48 hours and 72 hours using air stones and the percentage reduction in COD, BOD and Turbidity were found out. It was found that as flow rate of aeration increased the percentage removal of above constituents also increased. Optimum removal was possible at a flow rate of 4 L/min at time period of 72 hours. BOD, COD, Turbidity were found to be removed by 95.88%, 95.71%, and 37.72% respectively.
Keywords: Domestic Wastewater, Aeration, Fine bubble Diffusers, COD, BOD.
Title: A Study on Effect of Aeration on Domestic Wastewater
Author: Jency Nadayil, Devu Mohan, Keerthana Dileep, Meenu Rose, Riya Rose Poly Parambi
International Journal of Interdisciplinary Research and Innovations
ISSN 2348-1218 (print), ISSN 2348-1226 (online)
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