Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of Washwater Chemistry and Delayed Start on Filter Ripening
Delayed start is an operational procedure aimed at reducing the negative effect of the filter ripening sequence (FRS) on the quality of filtered water. The delayed start procedure has been evaluated under a variety of conditions and provides insights into the mechanisms behind the FRS. Experiments were conducted at both pilot and plant scales, and the comparison of these results led to the discovery of the importance of backwash water chemistry on the FRS. Polyphosphates in the backwash water were shown to negatively affect filtered water quality immediately after backwashing. Discoveries were also made that will help explain why delayed start seems to work well for some treatment plants and not for others.
Effect of Washwater Chemistry and Delayed Start on Filter Ripening
Delayed start is an operational procedure aimed at reducing the negative effect of the filter ripening sequence (FRS) on the quality of filtered water. The delayed start procedure has been evaluated under a variety of conditions and provides insights into the mechanisms behind the FRS. Experiments were conducted at both pilot and plant scales, and the comparison of these results led to the discovery of the importance of backwash water chemistry on the FRS. Polyphosphates in the backwash water were shown to negatively affect filtered water quality immediately after backwashing. Discoveries were also made that will help explain why delayed start seems to work well for some treatment plants and not for others.
Effect of Washwater Chemistry and Delayed Start on Filter Ripening
Amburgey, James E. (Autor:in) / Amirtharajah, Appiah (Autor:in) / Brouckaert, Barbara M. (Autor:in) / Spivey, Neal C. (Autor:in)
Journal ‐ American Water Works Association ; 96 ; 97-110
01.01.2004
14 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Regulations , Filters , Chemistry , Compliance , Water Quality , Backwash
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