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Maintaining and Extending Membrane Life
Author(s) -
Seitz Paul,
Sorgini Lisa
Publication year - 2007
Publication title -
opflow
Language(s) - English
Resource type - Journals
eISSN - 1551-8701
pISSN - 0149-8029
DOI - 10.1002/j.1551-8701.2007.tb01935.x
Subject(s) - membrane , filtration (mathematics) , audit , process engineering , water treatment , environmental science , water quality , engineering , waste management , environmental engineering , business , chemistry , biology , mathematics , ecology , biochemistry , statistics , accounting
The Maui (Hawaii) Department of Water Supply has more than 10 years experience operating and maintaining low‐pressure membrane filtration systems, including its Lahaina plant, which was one of the first membrane applications for drinking water in the United States. With four membrane installations currently operating on different feedwaters, the Department of Water Quality has gained valuable knowledge about membrane plant operation and maintenance. This article provides a brief system overview, discusses the problem they had with high color content in the water, process audits for all four of Maui's membrane filtration plants, changing cleaning regimes to prolong the life of the membranes, and membrane retrofit to allow increased capacity at lower operating costs.