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ISSN : 1026-3098
e-ISSN : 2345-3605
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Publication Information : Volume 23 - Number 3 - Successive Number 3
Type : Research Note
Topics of Paper : Transaction on Civil Engineering
English Title : Effect of Step Geometry and Water Quality on Efficiency of Cascade Aeration
English Abstract : In this paper, the effect of step geometry with five different tread values from 0.40 m to 0.60 m with an increment of 0.05 m and three different types of water namely potable, non-potable and recycled water on aeration efficiency of stepped cascade aeration was studied. Detailed experimental investigations were carried out for different hydraulic loading rates of 0.005 m2/s to 0.035 m2/s. All the experiments were conducted for nappe flow condition. Results revealed that overall aeration efficiency at standard conditions (E20) approaches maximum for t/h = 4, number of steps = 12, hydraulic loading rate = 0.02 to 0.025 m2/s for potable and non-potable water. In the case of recycled water maximum efficiency was achieved for t/h = 3.67. Results also revealed that stepped cascade aeration was found to be a very suitable option for enhancing DO content in treatment of waste water before discharging it to water bodies to save aquatic life.
English Keywords : Aeration, efficiency, step geometry, dissolved oxygen, cascade
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Number Of Pages :
From 918 to 925


Authors :
The AuthorAuthor SequenceOrganizationOrganization ( english )AffiliationEmailEducation
Dr. V. Rathinakumar 1School of Civil Engineering, SASTRA University, Thanjavur , India Assistant Professorrathinakumar@civil.sastra.edu 
Prof. G. Dhinakaran
(Author)
2Center for Advanced Research in Environment, School of Civil Engineering, SASTRA University, Thanjavur 613401 India Professorgd@civil.sastra.edu 
Prof. C.R. Suribabu 3Center for Advanced Research in Environment, School of Civil Engineering, SASTRA University, Thanjavur India Professorsuribabu@civil.sastra.edu 
Published Issues
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Transactions on Civil Engineering
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2016
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Transactions on Civil Engineering
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2014
Transactions on Civil Engineering
Transactions on Mechanical Engineering
Transactions on Chemistry and Chemical Engineering
Transactions on Computer Science & Engineering and Electrical Engineering
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2013
Transactions on Civil Engineering
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Transactions on Industrial Engineering
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