Benefits and limitations of using Fe(III)-EDDS for the treatment of highly contaminated water at near-neutral pH

被引：46

作者：

Papoutsakis, S. ^{[2
,4
]}

Brites-Nobrega, F. F. ^{[3
]}

Pulgarin, C. ^{[2
]}

Malato, S. ^{[1
,4
]}

机构：

[1] CIEMAT, Plataforma Solar Almeria, Tabernas 04200, Spain

[2] Ecole Polytech Fed Lausanne, ISIC, CH-1075 Lausanne, Switzerland

[3] Univ Fed Minas Gerais, BR-31270901 Belo Horizonte, MG, Brazil

[4] Univ Almeria, CIEMAT, Joint Ctr, CIESOL, Almeria 04120, Spain

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2015年 / 303卷

关键词：

Advanced oxidation; Ethylenediamine-N; N '-dissucinic acid; Photocatalysis; Photo-Fenton; SOLAR PHOTO-FENTON; ADVANCED OXIDATION PROCESSES; PILOT-PLANT; TIO2; PHOTOCATALYSIS; RADICAL FORMATION; UV-RADIATION; DEGRADATION; COMPLEX; ACID; EFFICIENCY;

D O I：

10.1016/j.jphotochem.2015.01.013

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This study evaluates the use of the Fe(III)-EDDS complexing agent as an alternative to conventional acidic pH photo-Fenton for the treatment of the pesticide imidacloprid in natural water. The main objective is to estimate whether Fe(III)-EDDS is a viable alternative when treating waters containing high concentrations of contaminants. To this end, the mode of action of Fe(III)-EDDS is examined in the presence of carbonates, at different aeration conditions and at different temperatures. The role of HO2 center dot/O-2(center dot-) radical species and some aspects of the Fe(III)-EDDS complexation mechanism are discussed. Degradation kinetics and toxicities of generated intermediates are compared between Fe(III)-EDDS and conventional photo-Fenton treatment. An overview of the benefits and limitations of the process is presented. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：1 / 7

页数：7

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