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Controlling Turbidity Spike with Alum, Iron
Author(s) -
Logsdon Gary S.,
Hess Alan F.,
Chipps Michael J.,
Gavre John,
Locklair Jack,
Hidahl Claudia,
Wierenga John
Publication year - 2005
Publication title -
opflow
Language(s) - English
Resource type - Journals
eISSN - 1551-8701
pISSN - 0149-8029
DOI - 10.1002/j.1551-8701.2005.tb01831.x
Subject(s) - alum , turbidity , cationic polymerization , filter (signal processing) , spike (software development) , water treatment , pulp and paper industry , chemistry , environmental science , environmental engineering , computer science , engineering , polymer chemistry , organic chemistry , geology , oceanography , software engineering , computer vision
This is the second part of a 2‐part series on minimizing the initial turbidity spike after filter backwash. This part focuses on adding coagulant chemical or cationic polymer to the settled water as it fills the filter box after backwash is terminated. Experiences from four different treatment plants with adding coagulant chemical or cationic polymer are compared. A list of important data to collect, record, and evaluate when studying the addition of conditioning chemicals to backwash water is provided.