A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The Effect of Slow Sand Filter Maintenance on Water Quality
Full‐scale municipal slow sand filters at seven sites in the Syracuse, N.Y., area were monitored before, during, and after filter scraping to verify the presence or absence of a ripening period, to determine the filter run length, and to quantify the labor and material required for scraping and resanding operations. Results showed some evidence of a ripening period, ranging from 6 h to 2 weeks, in four of the 10 operations monitored. The presence or absence of a ripening period did not seem to be related to the use of prechlorination, to water temperature, to scraping methodology, or to frequency of filter maintenance. The factor that seemed to have the most significant effect on the quality of the filtrate was the amount and nature of the particulate matter present in the raw water.
The Effect of Slow Sand Filter Maintenance on Water Quality
Full‐scale municipal slow sand filters at seven sites in the Syracuse, N.Y., area were monitored before, during, and after filter scraping to verify the presence or absence of a ripening period, to determine the filter run length, and to quantify the labor and material required for scraping and resanding operations. Results showed some evidence of a ripening period, ranging from 6 h to 2 weeks, in four of the 10 operations monitored. The presence or absence of a ripening period did not seem to be related to the use of prechlorination, to water temperature, to scraping methodology, or to frequency of filter maintenance. The factor that seemed to have the most significant effect on the quality of the filtrate was the amount and nature of the particulate matter present in the raw water.
The Effect of Slow Sand Filter Maintenance on Water Quality
Cullen, Thomas R. (author) / Letterman, Raymond D. (author)
Journal ‐ American Water Works Association ; 77 ; 48-55
1985-12-01
8 pages
Article (Journal)
Electronic Resource
English
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