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Removal of chemical species by elect...

Omoregie, Henryson Osawaru.

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Removal of chemical species by electrically charged bicomponent fibers.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Removal of chemical species by electrically charged bicomponent fibers./
Author:	Omoregie, Henryson Osawaru.
Description:	233 p.
Notes:	Source: Dissertation Abstracts International, Volume: 57-09, Section: B, page: 5784.
Contained By:	Dissertation Abstracts International57-09B.
Subject:	Engineering, Chemical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9706158
ISBN:	0591131137

Removal of chemical species by electrically charged bicomponent fibers.
Omoregie, Henryson Osawaru.

Removal of chemical species by electrically charged bicomponent fibers. - 233 p.

Source: Dissertation Abstracts International, Volume: 57-09, Section: B, page: 5784.

Thesis (Ph.D.)--The University of Arizona, 1996.

A new water deionization method was conceived and investigated. Bench scale reactors were designed and tested. Numerical analysis of ion movement in water in the presence of electrical, hydraulic, and chemical gradients was conducted.

ISBN: 0591131137Subjects--Topical Terms:

1018531
Engineering, Chemical.

Removal of chemical species by electrically charged bicomponent fibers.
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020 $a 0591131137
035 $a (UnM)AAI9706158
035 $a AAI9706158
040 $a UnM $c UnM
100 1 $a Omoregie, Henryson Osawaru. $3 1940045
245 1 0 $a Removal of chemical species by electrically charged bicomponent fibers.
300 $a 233 p.
500 $a Source: Dissertation Abstracts International, Volume: 57-09, Section: B, page: 5784.
500 $a Director: Dennis L. Larson.
502 $a Thesis (Ph.D.)--The University of Arizona, 1996.
520 $a A new water deionization method was conceived and investigated. Bench scale reactors were designed and tested. Numerical analysis of ion movement in water in the presence of electrical, hydraulic, and chemical gradients was conducted.
520 $a The new water treatment technology uses bicomponent fibers (BCF). Ions in water are concentrated near charged bicomponent fibers. Bicomponent fibers are composed of two materials. The outer annulus is made of nylon and has an inside diameter of 10 $\ mu $m and outer diameter of 50 $\ mu $m . The inner annulus is composed of carbon powder and has an outer diameter of 10 $\ mu $m .
520 $a For the bench scale reactors, approximately one kilometer length of fibers was wrapped around a series of plastic panels and placed in a plexiglass container containing sodium nitrate solution. The ends of the fibers were covered with electrically conductive epoxy and connected to a DC power supply. In experiments which lasted up to 96 h., the solution showed up to 50 percent decrease in nitrate concentration after the power supply was applied. Preliminary studies indicated that distance between panels, polarity of panels and voltage magnitude influenced observed concentration.
520 $a Two one dimensional analytical solutions and finite element solutions for two dimensions were derived for no flow condition between parallel plates. For the first finite element model, the continuity, Navier-Stokes, and species equations were solved for solute concentration with rectangular coordinates. For the second model, Poisson-Boltzmann equations were included in a finite element scheme. The models were applied to irregular-shaped bodies and the finite element solutions were compared with analytical solutions. The solutions for Poisson-Boltzmann equations were obtained for both linearized and non-linear forms. Boundary conditions included no chemical reactions and no transport across boundaries. The formulations did not solve for concentration in bicomponent fiber reactors because insufficient data and knowledge of the bicomponent fiber process is available. However, future numerical models of the bicomponent fiber treatment process may be based on solutions derived in this research.
590 $a School code: 0009.
650 4 $a Engineering, Chemical. $3 1018531
650 4 $a Engineering, Agricultural. $3 1019504
690 $a 0542
690 $a 0539
710 2 0 $a The University of Arizona. $3 1017508
773 0 $t Dissertation Abstracts International $g 57-09B.
790 1 0 $a Larson, Dennis L., $e advisor
790 $a 0009
791 $a Ph.D.
792 $a 1996
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9706158