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The Resource Optimization of chemical dosing in water treatment for enhanced coagulation/softening as it pertains to dbp removal, by Colleen M. Kenny, (electronic resource)

Optimization of chemical dosing in water treatment for enhanced coagulation/softening as it pertains to dbp removal, by Colleen M. Kenny, (electronic resource)

Creator
Contributor
Summary
Treatment facilities out of compliance with EPA regulations are often not using optimal chemical treatment. Determination of the most effective chemical type, combination and concentration can aid in reduction of disinfection by-product precursors. The effects of optimal chemical treatment using enhanced coagulation and enhanced softening was tested on three surface waters (two reservoirs and one lake sources), and one ground water (alluvial wells). Results indicated enhanced coagulation was more effective at removing DBP precursors from waters with higher initial UV-254 absorbance values and lower alkalinities while enhanced softening was more effective for waters with lower initial UV-254 absorbance values and higher alkalinities. In a number of cases, ferric salts outperformed aluminum salts at reducing the DBP formation potential. Redox potential measurements were added to the list of analyses to determine trends and the feasibility of using this parameter as an additional indicator of process efficiency. It is expected that Eh will trend as the inverse of pH. However, this research presents that under constant pH conditions, the Eh readings seem to indicate the destabilization and stabilization processes expected during the coagulation step in drinking water treatment. Comparison of the Eh readings from the start of various treatment stages to the end provides some indication of the effectiveness the enhanced coagulation or enhanced softening process has on the removal of organic precursors for disinfection by-products
Language
eng
Work
Publication
Extent
1 online resource (xii, 139 pages)
Note
  • Title from PDF of title page (University of Missouri--Columbia, viewed on August 13, 2010)
  • The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file
  • Thesis advisor: Dr. Enos C. Inniss
Instance
Label
Optimization of chemical dosing in water treatment for enhanced coagulation/softening as it pertains to dbp removal
Title
Optimization of chemical dosing in water treatment for enhanced coagulation/softening as it pertains to dbp removal
Statement of responsibility
by Colleen M. Kenny
Creator
Contributor
Thesis advisor
Subject
Genre
Language
eng
Summary
Treatment facilities out of compliance with EPA regulations are often not using optimal chemical treatment. Determination of the most effective chemical type, combination and concentration can aid in reduction of disinfection by-product precursors. The effects of optimal chemical treatment using enhanced coagulation and enhanced softening was tested on three surface waters (two reservoirs and one lake sources), and one ground water (alluvial wells). Results indicated enhanced coagulation was more effective at removing DBP precursors from waters with higher initial UV-254 absorbance values and lower alkalinities while enhanced softening was more effective for waters with lower initial UV-254 absorbance values and higher alkalinities. In a number of cases, ferric salts outperformed aluminum salts at reducing the DBP formation potential. Redox potential measurements were added to the list of analyses to determine trends and the feasibility of using this parameter as an additional indicator of process efficiency. It is expected that Eh will trend as the inverse of pH. However, this research presents that under constant pH conditions, the Eh readings seem to indicate the destabilization and stabilization processes expected during the coagulation step in drinking water treatment. Comparison of the Eh readings from the start of various treatment stages to the end provides some indication of the effectiveness the enhanced coagulation or enhanced softening process has on the removal of organic precursors for disinfection by-products
Cataloging source
MUU
http://library.link/vocab/creatorDate
1986-
http://library.link/vocab/creatorName
Kenny, Colleen M.
Degree
M.S.
Dissertation year
2010.
Granting institution
University of Missouri--Columbia
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
  • theses
http://library.link/vocab/relatedWorkOrContributorName
Inniss, Enos C.
http://library.link/vocab/subjectName
  • Water
  • Water
  • Water quality
Target audience
specialized
Label
Optimization of chemical dosing in water treatment for enhanced coagulation/softening as it pertains to dbp removal, by Colleen M. Kenny, (electronic resource)
Instantiates
Publication
Note
  • Title from PDF of title page (University of Missouri--Columbia, viewed on August 13, 2010)
  • The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file
  • Thesis advisor: Dr. Enos C. Inniss
Bibliography note
Includes bibliographical references
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
681953799
Extent
1 online resource (xii, 139 pages)
Form of item
electronic
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations (some color).
Specific material designation
remote
System control number
(OCoLC)681953799
Label
Optimization of chemical dosing in water treatment for enhanced coagulation/softening as it pertains to dbp removal, by Colleen M. Kenny, (electronic resource)
Publication
Note
  • Title from PDF of title page (University of Missouri--Columbia, viewed on August 13, 2010)
  • The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file
  • Thesis advisor: Dr. Enos C. Inniss
Bibliography note
Includes bibliographical references
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
681953799
Extent
1 online resource (xii, 139 pages)
Form of item
electronic
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations (some color).
Specific material designation
remote
System control number
(OCoLC)681953799

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