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Treating Ion-Exchange Waste Brines w...

ProQuest Information and Learning Co.

Treating Ion-Exchange Waste Brines with Ferrous Chloride.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Treating Ion-Exchange Waste Brines with Ferrous Chloride./
Author:	Homan, Nathaniel Pierce.
Description:	1 online resource (43 pages)
Notes:	Source: Masters Abstracts International, Volume: 57-02.
Subject:	Environmental engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9780355460780

Treating Ion-Exchange Waste Brines with Ferrous Chloride.
Homan, Nathaniel Pierce.

Treating Ion-Exchange Waste Brines with Ferrous Chloride. - 1 online resource (43 pages)

Source: Masters Abstracts International, Volume: 57-02.

Thesis (M.Engr.)--University of California, Davis, 2017.

Includes bibliographical references

Ferrous chloride (FeCl2) added to chromium-laden brines produced by strong base anion exchange (SBA-IX) systems reduces hexavalent chromium [Cr(VI)] to trivalent chromium [Cr(III)] and precipitates the Cr(III) in a mixed chromium-iron hydroxide solid solution. A series of jar tests was conducted in which FeCl2 was added to synthetic SBA-IX brines. The variables investigated were initial Cr(VI) concentration, initial pH, and Fe(II):Cr(VI) stoichiometric dose ratio. This reduction-coagulation-flocculation (RCF) process was also tested on field brines with various compositions. The RCF process achieved greater than 77% chromium removal efficiency at all tested conditions, except in brines with a bicarbonate matrix. Significant vanadium and arsenic removal (>78% and >49% removal, respectively) was observed in field brines with a chloride or sulfate matrix. Diffuse double layer modeling suggests that adsorption to the precipitated solids was the predominant removal mechanism of vanadium and arsenic.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355460780Subjects--Topical Terms:

557376
Environmental engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Treating Ion-Exchange Waste Brines with Ferrous Chloride.
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100 1 $a Homan, Nathaniel Pierce. $3 1186025
245 1 0 $a Treating Ion-Exchange Waste Brines with Ferrous Chloride.
264 0 $c 2017
300 $a 1 online resource (43 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Masters Abstracts International, Volume: 57-02.
500 $a Includes supplementary digital materials.
500 $a Adviser: Thomas M. Young.
502 $a Thesis (M.Engr.)--University of California, Davis, 2017.
504 $a Includes bibliographical references
520 $a Ferrous chloride (FeCl2) added to chromium-laden brines produced by strong base anion exchange (SBA-IX) systems reduces hexavalent chromium [Cr(VI)] to trivalent chromium [Cr(III)] and precipitates the Cr(III) in a mixed chromium-iron hydroxide solid solution. A series of jar tests was conducted in which FeCl2 was added to synthetic SBA-IX brines. The variables investigated were initial Cr(VI) concentration, initial pH, and Fe(II):Cr(VI) stoichiometric dose ratio. This reduction-coagulation-flocculation (RCF) process was also tested on field brines with various compositions. The RCF process achieved greater than 77% chromium removal efficiency at all tested conditions, except in brines with a bicarbonate matrix. Significant vanadium and arsenic removal (>78% and >49% removal, respectively) was observed in field brines with a chloride or sulfate matrix. Diffuse double layer modeling suggests that adsorption to the precipitated solids was the predominant removal mechanism of vanadium and arsenic.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Environmental engineering. $3 557376
650 4 $a Water resources management. $3 1178858
650 4 $a Chemistry. $3 593913
655 7 $a Electronic books. $2 local $3 554714
690 $a 0775
690 $a 0595
690 $a 0485
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a University of California, Davis. $b Civil and Environmental Engineering. $3 1179246
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10287147 $z click for full text (PQDT)

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