Removal of organophosphorus pesticides from water by electrogenerated Fenton's reagent

被引：85

作者：

Guivarch, Elodie ^{[1
]}

Oturan, Nihal ^{[1
]}

Oturan, Mehmet A. ^{[1
]}

机构：

[1] Univ Marne La Vallee, Lab Geomat, CNRS, FRE 2455, F-77454 Marne La Vallee, France

来源：

ENVIRONMENTAL CHEMISTRY LETTERS | 2003年 / 1卷 / 03期

关键词：

AOP; Electro-Fenton; Fenton's reagent; Hydroxyl radical; Organophosphorus pesticides; HYDROXYL RADICALS; AQUEOUS-MEDIA; DEGRADATION;

D O I：

10.1007/s10311-003-0029-4

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Aqueous solutions of organophosphorus pesticides were completely mineralized via in-situ generated hydroxyl radicals (HO center dot) by the Electro-Fenton process. Formation of Fenton's reagent (H2O2, Fe2+) was carried out by simultaneous reduction of O-2 and Fe3+ on carbon cathode in acidic medium. The electrochemistry combined with Fenton's reagent provides an excellent way to continuously produce the hydroxyl radical, a powerful oxidant. We demonstrate the efficiency of the Electro-Fenton process to degrade three organophosphorus insecticides: malathion, parathion ethyl and tetra-ethyl-pyrophosphate (TEPP). Degradation kinetics and removals of chemical oxygen demand (COD) have been investigated. Here we show that the mineralization efficiency was over 80% for three organophosphorus pesticides.

引用

页码：165 / 168

页数：4

共 15 条

[1]

Aaron JJ, 2001, TURK J CHEM, V25, P509

[2] Simultaneous determination of neutral and acidic pesticides in natural waters at the low nanogram per liter level [J].

Bucheli, TD ;

Gruebler, FC ;

Muller, SR ;

Schwarzenbach, RP .

ANALYTICAL CHEMISTRY, 1997, 69 (08) :1569-1576

[3] A comparative photodegradation studies of methyl parathion by using Lumistox test and conductometric biosensor technique [J].

Dzyadevych, SV ;

Chovelon, JM .

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, 2002, 21 (1-2) :55-60

[4] RATE CONSTANTS FOR REACTION OF HYDROXYL RADICALS WITH SEVERAL DRINKING-WATER CONTAMINANTS [J].

HAAG, WR ;

YAO, CCD .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1992, 26 (05) :1005-1013

[5] Photocatalytic degradation of pesticide pirimiphos-methyl -: Determination of the reaction pathway and identification of intermediate products by various analytical methods [J].

Herrmann, JM ;

Guillard, C ;

Arguello, M ;

Agüera, A ;

Tejedor, A ;

Piedra, L ;

Fernández-Alba, A .

CATALYSIS TODAY, 1999, 54 (2-3) :353-367

[6] DECOLORIZING DYE WASTE-WATER WITH FENTON REAGENT [J].

KUO, WG .

WATER RESEARCH, 1992, 26 (07) :881-886

[7]

MATSUE T, 1981, J ELECTROCHEM SOC, V128, P2565, DOI 10.1149/1.2127292

[8] Microbial process for the decolorization of textile effluent containing azo, diazo and reactive dyes [J].

Nigam, P ;

Banat, IM ;

Singh, D ;

Marchant, R .

PROCESS BIOCHEMISTRY, 1996, 31 (05) :435-442

[9] An ecologically effective water treatment technique using electrochemically generated hydroxyl radicals for in situ destruction of organic pollutants:: Application to herbicide 2,4-D [J].

Oturan, MA .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 2000, 30 (04) :475-482

[10]

Oturan MA, 1999, PESTIC SCI, V55, P558, DOI 10.1002/(SICI)1096-9063(199905)55:5<558::AID-PS968>3.0.CO

← 1 2 →