Research Article
Feb 1968
Filter Backwashing Tests and Upflow Equalization
This article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYPublication: Journal of the Sanitary Engineering Division
Volume 94, Issue 1
Abstract
Suspended solids are determined in backwash samples collected every 15 sec at critical points in filters throughout the backwash operation. Eight plants were visited to observe some 23 variables. Cleansing action is decidedly nonuniform, being greatest under the sides of the troughs and decreasing toward the intertrough median. Corners generally washed most poorly. Disparity in upflow is caused by the directional influence of the troughs which negate the uniformity expected from the underdrains. Although various correctives are considered, only a V-shaped functionally perforated guidance baffle can be permanently effective.
Get full access to this article
View all available purchase options and get full access to this article.
Information & Authors
Information
Published In
Journal of the Sanitary Engineering Division
Volume 94 • Issue 1 • February 1968
Pages: 129 - 146
Copyright
© 1968 American Society of Civil Engineers.
History
Published in print: Feb 1968
Published online: Feb 12, 2021
Permissions
Request permissions for this article.
Authors
Affiliations
A. Adler Hirsch
Water Purification Supt., Dept. of Water Utilities, Shreveport, La.
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.
Cited by
View Options
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.