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Characterization of humic substances...

Aboul Eish, Mohamed Yehia Zakaria.

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Characterization of humic substances using chemical, chromatographic, and spectroscopic techniques.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Characterization of humic substances using chemical, chromatographic, and spectroscopic techniques./
Author:	Aboul Eish, Mohamed Yehia Zakaria.
Description:	225 p.
Notes:	Source: Dissertation Abstracts International, Volume: 64-02, Section: B, page: 0687.
Contained By:	Dissertation Abstracts International64-02B.
Subject:	Chemistry, Analytical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=3080896

Characterization of humic substances using chemical, chromatographic, and spectroscopic techniques.
Aboul Eish, Mohamed Yehia Zakaria.

Characterization of humic substances using chemical, chromatographic, and spectroscopic techniques. - 225 p.

Source: Dissertation Abstracts International, Volume: 64-02, Section: B, page: 0687.

Thesis (Ph.D.)--Tennessee Technological University, 2003.

Chemical, chromatographic, and spectroscopic techniques were used in this research to study and characterize humic substances (HS) of different origin (aquatic and terrestrial), geographical source (Nordic Aquatic, Suwannee River, Peat, and Soil), and type (fulvic and humic acids). Such research will develop a better understanding of the interaction between HS and water disinfectants.Subjects--Topical Terms:

586156
Chemistry, Analytical.

Characterization of humic substances using chemical, chromatographic, and spectroscopic techniques.
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035 $a AAI3080896
040 $a UnM $c UnM
100 1 $a Aboul Eish, Mohamed Yehia Zakaria. $3 1944684
245 1 0 $a Characterization of humic substances using chemical, chromatographic, and spectroscopic techniques.
300 $a 225 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-02, Section: B, page: 0687.
500 $a Adviser: Martha J. M. Wells.
502 $a Thesis (Ph.D.)--Tennessee Technological University, 2003.
520 $a Chemical, chromatographic, and spectroscopic techniques were used in this research to study and characterize humic substances (HS) of different origin (aquatic and terrestrial), geographical source (Nordic Aquatic, Suwannee River, Peat, and Soil), and type (fulvic and humic acids). Such research will develop a better understanding of the interaction between HS and water disinfectants.
520 $a Synchronous fluorescence spectroscopy (SFS) was used in the literature as a qualitative tool to identify the nature of HS. In this research SFS was used as a qualitative and a quantitative tool that allowed better characterization of HS than by using ultraviolet absorbance at 254 nm (UVA). SFS also permitted the quantification of the fluorescing components of HS, and the differentiation among water from different sources.
520 $a The research demonstrated that the difference in the origin, geographical source and type of HS affected dissolved organic carbon (DOC), UVA, SFS, and trihalomethane formation potential (THMFP). Results suggest that the nature and character of HS must be considered during the drinking water monitoring process to minimize variability of data, resulting in an effective water treatment.
520 $a Activated carbon is used by most water utilities to reduce the levels of HS in raw drinking water. Results demonstrated that HS undergo either similar or different adsorption processes depending on the character and nature of HS. Use of sorption isotherms showed preferential adsorption by activated carbon of the components of HS responsible for DOC, UVA, SFS and THMFP.
520 $a Fractionation of HS using thin layer chromatography (TLC) resulted in the most purified subfractions found in the literature. Some fractions were identified as proteinaceous, fulvic, or humic like material. The proteinaceous fraction isolated by TLC demonstrated potential for forming THMs, suggesting the need to adjust the monitoring techniques used by water systems to account for the proteinaceous material present and its contribution to THMs.
590 $a School code: 0390.
650 4 $a Chemistry, Analytical. $3 586156
650 4 $a Engineering, Environmental. $3 783782
650 4 $a Biogeochemistry. $3 545717
650 4 $a Engineering, Sanitary and Municipal. $3 1018731
650 4 $a Engineering, Civil. $3 783781
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690 $a 0775
690 $a 0425
690 $a 0554
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710 2 0 $a Tennessee Technological University. $3 1022577
773 0 $t Dissertation Abstracts International $g 64-02B.
790 1 0 $a Wells, Martha J. M., $e advisor
790 $a 0390
791 $a Ph.D.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=3080896