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Applying Self‐assessment to Filter Optimization
Author(s) -
Barsotti Michael G.,
Fay James W.,
Consonery Phil J.
Publication year - 1997
Publication title -
opflow
Language(s) - English
Resource type - Journals
eISSN - 1551-8701
pISSN - 0149-8029
DOI - 10.1002/j.1551-8701.1997.tb02031.x
Subject(s) - filtration (mathematics) , turbidity , flocculation , filter (signal processing) , environmental science , upgrade , raw water , water quality , environmental engineering , hydrology (agriculture) , waste management , engineering , computer science , geology , geotechnical engineering , mathematics , oceanography , ecology , statistics , electrical engineering , biology , operating system
The Champlain Water District's Peter L. Jacob Filtration Facility in Northwestern Vermont treats low‐turbidity raw water from Lake Champlain's Shelburne Bay with the goal of producing consistent high‐quality finished water. From 1980 to 1989, the facility consisted of two deep‐bed, dual‐media filters and one converted deep‐bed, multimedia filter, preceded by flocculation basins operated in the direct filtration mode. In 1991, a phased three‐year facility upgrade was completed, that made modifications to the flocculation basins and additions to the filtration and disinfection barriers. This article discusses the means by which the facility was evaluated. The district invited an independent third‐party assessor to review the treatment facility in 1994. This paper discusses in detail the self‐assessment process, the recommendations that were issued, and the actions which resulted from the assessment.