Photo-Fenton removal of water-soluble polymers

被引：38

作者：

Giroto, J. A. ^{[1
]}

Teixeira, A. C. S. C. ^{[1
]}

Nascimento, C. A. O. ^{[1
]}

Guardani, R. ^{[1
]}

机构：

[1] Univ Sao Paulo, Dept Chem Engn, BR-05508900 Sao Paulo, Brazil

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2008年 / 47卷 / 12期

基金：

巴西圣保罗研究基金会;

关键词：

Photodegradation; Polymers; Photo-Fenton process; Industrial wastewater; Polyethyleneglicol (PEG); Polyacrylamide (PAM); Polyvinylpyrrolidone (PVP);

D O I：

10.1016/j.cep.2008.01.014

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper presents the results of experiments carried out in a laboratory-scale photochemical reactor on the photodegradation of different polymers in aqueous solutions by the photo-Fenton process. Solutions of three polymers, polyethyleneglicol (PEG), polyacrylamide (PAM), and polyvinylpyrrolidone(PVP), were tested under different. conditions. The reaction progress was evaluated by sampling and analyzing the total organic carbon concentration in solution (TOC) along the reaction time. The behavior of the different polymers is discussed, based oil the evolution of the TOC-time curves. Under specific reaction conditions, the formation and coalescence of solid particles was Visually observed. Solids formation occurred simultaneously to a sharp decrease in the TOC of the liquid phase. This may be favorable for the treatment of industrial wastewater containing polymers, since the photodegradation process can be Coupled with solid separation systems. which may reduce the treatment cost. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：2361 / 2369

页数：9

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