Oxidative degradation of polyvinyl alcohol by the photochemically enhanced Fenton reaction

被引：59

作者：

Lei, LC

Hu, XJ

Yue, PL

Bossmann, SH

Gob, S

Braun, AM

机构：

[1] Univ Karlsruhe, Engler Bunte Inst, Lehrstuhl Umweltmesstech, D-76128 Karlsruhe, Germany

[2] Hong Kong Univ Sci & Technol, Dept Chem Engn, Hong Kong, Peoples R China

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1998年 / 116卷 / 02期

关键词：

photochemically enhanced Fenton reaction; advanced oxidation; oxidative degradation; environmental pollutants;

D O I：

10.1016/S1010-6030(98)00293-7

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：

The effective degradation of polyvinyl alcohol (PVA) was achieved by the application of the photochemically enhanced Fenton reaction. This 'Advanced Oxidation Process' was studied in a batch reactor (V = 0.75 l) using a mercury medium pressure light source. The accuracy of the DOC measurements in function of irradiation and reaction time was remarkably enhanced by the addition of a reduction and precipitation agent, consisting of an aqueous solution of Na3PO4, Na2SO3 and Kl. Effective oxidation was observed when employing low iron(II) concentrations of approximately 1 equivalent of iron(II) per 20 PVA-units (C2H4O) and a stoichiometric amount of H2O2 with respect to the PVA-units to be oxidized. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：159 / 166

页数：8

共 30 条

[1] PHOTODEGRADATION OF ORGANIC POLLUTANTS INDUCED BY COMPLEXATION WITH TRANSITION-METALS (FE3+ AND CU2+) PRESENT IN NATURAL-WATERS [J].