Issues in Hydraulic Design of Sanitary Sewers
Publication: Journal of Environmental Engineering
Volume 146, Issue 4
Abstract
Various protocols are used in the hydraulic design of sanitary sewers, with key differences related to the assurance of self-cleansing, and the selection of Manning’s . Analyses reported in this paper show that (1) self-cleansing of sewer pipes should not generally be assessed based on a specified full-flow velocity, (2) the typical Manning’s values for specified pipe diameters recommended by ASCE are not generally appropriate, and (3) an exact analytic relationship between the minimum self-cleansing slope and the minimum flow rate can replace the empirical relations recommended by ASCE.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
References
ASCE. 2007. Gravity sanitary sewer design and construction: ASCE manuals and reports on engineering practice no. 60. Reston, VA: ASCE.
Chin, D. 2013. Water-resources engineering. 3rd ed. Upper Saddle River, NJ: Pearson.
Fair, G., and J. Geyer. 1954. Water supply and waste-water disposal. Hoboken, NJ: Wiley.
GLUMRB (Great Lakes–Upper Mississippi River Board). 2014. Recommended standards for wastewater facilities. Albany, NY: Health Education Services Division.
Merritt, L. 1998. Manning roughness coefficient in sewer design: Sewer design paper 98-2. Provo, UT: Brigham Young Univ.
Merritt, L. 2009. “Tractive force design for sanitary sewer self-cleansing.” J. Environ. Eng. 135 (12): 1338–1347. https://doi.org/10.1061/(ASCE)EE.1943-7870.0000105.
Swamee, P., and A. Jain. 1976. “Explicit equations for pipe-flow problems.” J. Hydraul. Div. 102 (HY5): 657–664.
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Information
Published In
Journal of Environmental Engineering
Volume 146 • Issue 4 • April 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Apr 26, 2019
Accepted: Sep 17, 2019
Published online: Jan 28, 2020
Published in print: Apr 1, 2020
Discussion open until: Jun 28, 2020
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