Oxidation of Cyanuric Acid in Aqueous Solution by Catalytic Ozonation

被引：5

作者：

Abdelli, Ghizlane ^{[1
]}

Leitner, Nathalie Karpel Vel ^{[1
]}

机构：

[1] Univ Poitiers, Dept Hlth, IC2MP UMR7285, Water,Geochem, 1 Rue Marcel Dore, F-86073 Poitiers, France

来源：

OZONE-SCIENCE & ENGINEERING | 2016年 / 38卷 / 03期

关键词：

Ozone; Aqueous Solution; Catalytic Ozonation; Cyanuric Acid; Toxicity; Transformation Products; HYDROXYL RADICALS; ACTIVATED CARBON; MELAMINE; WATER; DEGRADATION; TOXICITY; OZONE;

D O I：

10.1080/01919512.2015.1117939

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The aim of this work was studying the activity of a Ru/CeO2 powder catalyst in the ozonation of aqueous solution of cyanuric acid (CYA). Ozonation in the presence of the catalyst significantly enhances CYA degradation. Within this work, investigation of the influence of pH and initial concentration on the catalytic ozonation of CYA has been done in a semicontinuous reactor. The removing degree of CYA at pH 5.9 show better response in comparison to pH 2.5 and pH 8.2. The mineralization of CYA by catalytic ozonation formed nitrate ions (0.7mol of NO(3)(-/)mol of CYA removed for 50% initial CYA abatement) and nitrite and ammonium ions in small amounts. Three transformation products formed during catalytic ozonation were identified from LC/MS and MS/MS analyses. The impact of oxidation on the toxicity was measured from the inhibition of Vibrio fisheri, which was found to increase continuously.

引用

页码：233 / 241

页数：9

共 33 条

[1]

[Anonymous], CERTIFIED POOL SPA

[2]

[Anonymous], OZONE WATER WASTEWAT

[3]

[Anonymous], SOVIET J WATER CHEM

[4]

[Anonymous], [No title captured]

[5]

[Anonymous], 113483 AFNOR NF EN I

[6]

[Anonymous], 001 87 F IOD METH DE

[7]

[Anonymous], 1972, WATER AICHE S SERIES

[8] Ozone and hydroxyl radicals induced oxidation of glycine [J].

Berger, P ;

Leitner, NKV ;

Doré, M ;

Legube, B .

WATER RESEARCH, 1999, 33 (02) :433-441

[9] Outbreaks of renal failure associated with melamine and cyanuric acid in dogs and cats in 2004 and 2007 [J].

Brown, Cathy A. ;

Jeong, Kyu-Shik ;

Poppenga, Robert H. ;

Puschner, Birgit ;

Miller, Doris M. ;

Ellis, Angela E. ;

Kang, Kyung-Il ;

Sum, Steffen ;

Cistola, Alexis M. ;

Brown, Scott A. .

JOURNAL OF VETERINARY DIAGNOSTIC INVESTIGATION, 2007, 19 (05) :525-531

[10] Evaluation of Subchronic Toxicity of Pet Food Contaminated with Melamine and Cyanuric Acid in Rats [J].

Chen, Kun-Chao ;

Liao, Chen-Wei ;

Cheng, Fen-Pang ;

Chou, Chi-Chung ;

Chang, Shih-Chien ;

Wu, Jhaol-Huei ;

Zen, Jyh-Myng ;

Chen, Yng-Tay ;

Liao, Jiunn-Wang .

TOXICOLOGIC PATHOLOGY, 2009, 37 (07) :959-968

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