Rapid characterization of the changes in dissolved organic matter polarity and size during water treatment

Fernando L. Rosario-Ortiz, Shane A Snyder, David Rexing, I. H. Suffet

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Characterization of dissolved organic matter (DOM) is extremely important for water utilities in order to minimize potential detrimental effects of disinfection by-products formation, fouling of membranes and biological re-growth and off-taste and odor occurring in the distribution system. Diverse analytical methods have been developed for the characterization of DOM, mostly relying on complex and lengthy procedures limiting real time information. In addition, most DOM characterization methods include preparation steps, such as changes in pH, which may change the DOM structure and conformation from its natural state. Rapid characterization of DOM and how it evolves throughout treatment processes is needed to be able to modify treatment parameters as needed to minimize the effects of DOM. PRAM (polarity rapid assessment method), fluorescence EEM (excitation emission matrix) and HPLC-SEC (size exclusion chromatography) offer great advantages for the continuous monitoring of DOM changes in treatment facilities with minimum sample preparation steps. These techniques offer the advantage of providing information in short periods of time. This paper assesses the changes in DOM polarity and size characteristics through the water treatment process at the River Mountains Water Treatment Facility in Henderson, Nevada indicating the value of the approach. Initial data shows temporal variation in DOM polarity as wells as differences in the effects of ozone pre-treatment as measured by the PRAM method. Size data indicates minimum differences in molecular weight distributions. A pre-concentration step, required prior to analysis of DOM size distribution, may be inhibiting the detection of differences in molecular weight distributions. Fluorescence data show a reduction in the intensity of the fulvic component between influent and finished waters.

Original languageEnglish (US)
Title of host publicationAWWA 124th Annual Conference and Exposition: The World's Water Event, ACE 2005
StatePublished - 2005
Externally publishedYes
EventAWWA 124th Annual Conference and Exposition: The World's Water Event, ACE 2005 - San Francisco, CA, United States
Duration: Jun 12 2005Jun 16 2005

Other

OtherAWWA 124th Annual Conference and Exposition: The World's Water Event, ACE 2005
CountryUnited States
CitySan Francisco, CA
Period6/12/056/16/05

Fingerprint

dissolved organic matter
water treatment
assessment method
fluorescence
sample preparation
regrowth
fouling
distribution system
disinfection
odor
chromatography
analytical method
temporal variation
ozone
membrane
well
water
matrix
mountain
monitoring

ASJC Scopus subject areas

  • Water Science and Technology

Cite this

Rosario-Ortiz, F. L., Snyder, S. A., Rexing, D., & Suffet, I. H. (2005). Rapid characterization of the changes in dissolved organic matter polarity and size during water treatment. In AWWA 124th Annual Conference and Exposition: The World's Water Event, ACE 2005

Rapid characterization of the changes in dissolved organic matter polarity and size during water treatment. / Rosario-Ortiz, Fernando L.; Snyder, Shane A; Rexing, David; Suffet, I. H.

AWWA 124th Annual Conference and Exposition: The World's Water Event, ACE 2005. 2005.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Rosario-Ortiz, FL, Snyder, SA, Rexing, D & Suffet, IH 2005, Rapid characterization of the changes in dissolved organic matter polarity and size during water treatment. in AWWA 124th Annual Conference and Exposition: The World's Water Event, ACE 2005. AWWA 124th Annual Conference and Exposition: The World's Water Event, ACE 2005, San Francisco, CA, United States, 6/12/05.
Rosario-Ortiz FL, Snyder SA, Rexing D, Suffet IH. Rapid characterization of the changes in dissolved organic matter polarity and size during water treatment. In AWWA 124th Annual Conference and Exposition: The World's Water Event, ACE 2005. 2005
Rosario-Ortiz, Fernando L. ; Snyder, Shane A ; Rexing, David ; Suffet, I. H. / Rapid characterization of the changes in dissolved organic matter polarity and size during water treatment. AWWA 124th Annual Conference and Exposition: The World's Water Event, ACE 2005. 2005.
@inproceedings{eed89af524c44d8f8e193bc1aa90cf27,
title = "Rapid characterization of the changes in dissolved organic matter polarity and size during water treatment",
abstract = "Characterization of dissolved organic matter (DOM) is extremely important for water utilities in order to minimize potential detrimental effects of disinfection by-products formation, fouling of membranes and biological re-growth and off-taste and odor occurring in the distribution system. Diverse analytical methods have been developed for the characterization of DOM, mostly relying on complex and lengthy procedures limiting real time information. In addition, most DOM characterization methods include preparation steps, such as changes in pH, which may change the DOM structure and conformation from its natural state. Rapid characterization of DOM and how it evolves throughout treatment processes is needed to be able to modify treatment parameters as needed to minimize the effects of DOM. PRAM (polarity rapid assessment method), fluorescence EEM (excitation emission matrix) and HPLC-SEC (size exclusion chromatography) offer great advantages for the continuous monitoring of DOM changes in treatment facilities with minimum sample preparation steps. These techniques offer the advantage of providing information in short periods of time. This paper assesses the changes in DOM polarity and size characteristics through the water treatment process at the River Mountains Water Treatment Facility in Henderson, Nevada indicating the value of the approach. Initial data shows temporal variation in DOM polarity as wells as differences in the effects of ozone pre-treatment as measured by the PRAM method. Size data indicates minimum differences in molecular weight distributions. A pre-concentration step, required prior to analysis of DOM size distribution, may be inhibiting the detection of differences in molecular weight distributions. Fluorescence data show a reduction in the intensity of the fulvic component between influent and finished waters.",
author = "Rosario-Ortiz, {Fernando L.} and Snyder, {Shane A} and David Rexing and Suffet, {I. H.}",
year = "2005",
language = "English (US)",
isbn = "1583213821",
booktitle = "AWWA 124th Annual Conference and Exposition: The World's Water Event, ACE 2005",

}

TY - GEN

T1 - Rapid characterization of the changes in dissolved organic matter polarity and size during water treatment

AU - Rosario-Ortiz, Fernando L.

AU - Snyder, Shane A

AU - Rexing, David

AU - Suffet, I. H.

PY - 2005

Y1 - 2005

N2 - Characterization of dissolved organic matter (DOM) is extremely important for water utilities in order to minimize potential detrimental effects of disinfection by-products formation, fouling of membranes and biological re-growth and off-taste and odor occurring in the distribution system. Diverse analytical methods have been developed for the characterization of DOM, mostly relying on complex and lengthy procedures limiting real time information. In addition, most DOM characterization methods include preparation steps, such as changes in pH, which may change the DOM structure and conformation from its natural state. Rapid characterization of DOM and how it evolves throughout treatment processes is needed to be able to modify treatment parameters as needed to minimize the effects of DOM. PRAM (polarity rapid assessment method), fluorescence EEM (excitation emission matrix) and HPLC-SEC (size exclusion chromatography) offer great advantages for the continuous monitoring of DOM changes in treatment facilities with minimum sample preparation steps. These techniques offer the advantage of providing information in short periods of time. This paper assesses the changes in DOM polarity and size characteristics through the water treatment process at the River Mountains Water Treatment Facility in Henderson, Nevada indicating the value of the approach. Initial data shows temporal variation in DOM polarity as wells as differences in the effects of ozone pre-treatment as measured by the PRAM method. Size data indicates minimum differences in molecular weight distributions. A pre-concentration step, required prior to analysis of DOM size distribution, may be inhibiting the detection of differences in molecular weight distributions. Fluorescence data show a reduction in the intensity of the fulvic component between influent and finished waters.

AB - Characterization of dissolved organic matter (DOM) is extremely important for water utilities in order to minimize potential detrimental effects of disinfection by-products formation, fouling of membranes and biological re-growth and off-taste and odor occurring in the distribution system. Diverse analytical methods have been developed for the characterization of DOM, mostly relying on complex and lengthy procedures limiting real time information. In addition, most DOM characterization methods include preparation steps, such as changes in pH, which may change the DOM structure and conformation from its natural state. Rapid characterization of DOM and how it evolves throughout treatment processes is needed to be able to modify treatment parameters as needed to minimize the effects of DOM. PRAM (polarity rapid assessment method), fluorescence EEM (excitation emission matrix) and HPLC-SEC (size exclusion chromatography) offer great advantages for the continuous monitoring of DOM changes in treatment facilities with minimum sample preparation steps. These techniques offer the advantage of providing information in short periods of time. This paper assesses the changes in DOM polarity and size characteristics through the water treatment process at the River Mountains Water Treatment Facility in Henderson, Nevada indicating the value of the approach. Initial data shows temporal variation in DOM polarity as wells as differences in the effects of ozone pre-treatment as measured by the PRAM method. Size data indicates minimum differences in molecular weight distributions. A pre-concentration step, required prior to analysis of DOM size distribution, may be inhibiting the detection of differences in molecular weight distributions. Fluorescence data show a reduction in the intensity of the fulvic component between influent and finished waters.

UR - http://www.scopus.com/inward/record.url?scp=84874324113&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84874324113&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84874324113

SN - 1583213821

SN - 9781583213827

BT - AWWA 124th Annual Conference and Exposition: The World's Water Event, ACE 2005

ER -