Removal of aqueous organic pollutants with hydrogen peroxide-enhanced iron mediated aeration

Yang Deng, James D. Englehardt

Research output: Contribution to journalConference article

Abstract

Elemental iron in the presence of molecular oxygen has recently been demonstrated to partially oxidize organic compounds. An iron-mediated aeration (IMA) process, enhanced with hydrogen peroxide, is described. Mechanisms and treatment efficiencies of the process are investigated. Decomposition kinetics constants of phenol are compared with and without para-chlorobenzoic acid (pCBA), a radical scavenger, at neutral pH. All four operating factors significantly affected COD removal. At neutral pH and room temperature, 50% of the COD was removed within 9 hr due to both coagulation and oxidation. Coagulation is ascribed to formation of iron sludge as an oxidation product of elemental iron. Hydrogen peroxide-enhanced IMA is a promising technology in treatment of high strength organic wastewater. This is an abstract of a paper presented at the 231th ACS National Meeting (Atlanta, GA 3/26-30/2006).

Original languageEnglish
JournalACS National Meeting Book of Abstracts
Volume231
StatePublished - 28 Jun 2006
Event231th ACS National Meeting - Atlanta, GA, United States
Duration: 26 Mar 200630 Mar 2006

Fingerprint

Organic pollutants
Hydrogen Peroxide
Iron
Coagulation
Oxidation
Molecular oxygen
Phenol
Organic compounds
Wastewater
Decomposition
Kinetics
Temperature

Cite this

@article{86e6261b06794883bafcd03e19bd69e5,
title = "Removal of aqueous organic pollutants with hydrogen peroxide-enhanced iron mediated aeration",
abstract = "Elemental iron in the presence of molecular oxygen has recently been demonstrated to partially oxidize organic compounds. An iron-mediated aeration (IMA) process, enhanced with hydrogen peroxide, is described. Mechanisms and treatment efficiencies of the process are investigated. Decomposition kinetics constants of phenol are compared with and without para-chlorobenzoic acid (pCBA), a radical scavenger, at neutral pH. All four operating factors significantly affected COD removal. At neutral pH and room temperature, 50{\%} of the COD was removed within 9 hr due to both coagulation and oxidation. Coagulation is ascribed to formation of iron sludge as an oxidation product of elemental iron. Hydrogen peroxide-enhanced IMA is a promising technology in treatment of high strength organic wastewater. This is an abstract of a paper presented at the 231th ACS National Meeting (Atlanta, GA 3/26-30/2006).",
author = "Yang Deng and Englehardt, {James D.}",
year = "2006",
month = "6",
day = "28",
language = "English",
volume = "231",
journal = "ACS National Meeting Book of Abstracts",
issn = "0065-7727",
publisher = "American Chemical Society",

}

Removal of aqueous organic pollutants with hydrogen peroxide-enhanced iron mediated aeration. / Deng, Yang; Englehardt, James D.

In: ACS National Meeting Book of Abstracts, Vol. 231, 28.06.2006.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Removal of aqueous organic pollutants with hydrogen peroxide-enhanced iron mediated aeration

AU - Deng, Yang

AU - Englehardt, James D.

PY - 2006/6/28

Y1 - 2006/6/28

N2 - Elemental iron in the presence of molecular oxygen has recently been demonstrated to partially oxidize organic compounds. An iron-mediated aeration (IMA) process, enhanced with hydrogen peroxide, is described. Mechanisms and treatment efficiencies of the process are investigated. Decomposition kinetics constants of phenol are compared with and without para-chlorobenzoic acid (pCBA), a radical scavenger, at neutral pH. All four operating factors significantly affected COD removal. At neutral pH and room temperature, 50% of the COD was removed within 9 hr due to both coagulation and oxidation. Coagulation is ascribed to formation of iron sludge as an oxidation product of elemental iron. Hydrogen peroxide-enhanced IMA is a promising technology in treatment of high strength organic wastewater. This is an abstract of a paper presented at the 231th ACS National Meeting (Atlanta, GA 3/26-30/2006).

AB - Elemental iron in the presence of molecular oxygen has recently been demonstrated to partially oxidize organic compounds. An iron-mediated aeration (IMA) process, enhanced with hydrogen peroxide, is described. Mechanisms and treatment efficiencies of the process are investigated. Decomposition kinetics constants of phenol are compared with and without para-chlorobenzoic acid (pCBA), a radical scavenger, at neutral pH. All four operating factors significantly affected COD removal. At neutral pH and room temperature, 50% of the COD was removed within 9 hr due to both coagulation and oxidation. Coagulation is ascribed to formation of iron sludge as an oxidation product of elemental iron. Hydrogen peroxide-enhanced IMA is a promising technology in treatment of high strength organic wastewater. This is an abstract of a paper presented at the 231th ACS National Meeting (Atlanta, GA 3/26-30/2006).

UR - http://www.scopus.com/inward/record.url?scp=33745288803&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:33745288803

VL - 231

JO - ACS National Meeting Book of Abstracts

JF - ACS National Meeting Book of Abstracts

SN - 0065-7727

ER -