Degradation of benzophenone in aqueous solution by Mn-Fe-K modified ceramic honeycomb-catalyzed ozonation

被引：12

作者：

Hou Yan-jun ^{[1
]}

Ma Jun ^{[1
]}

Sun Zhi-zhong ^{[1
]}

Yu Ying-hui ^{[1
]}

Zhao Lei ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Municipal & Environm Engn, Harbin 150090, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL SCIENCES | 2006年 / 18卷 / 06期

基金：

中国国家自然科学基金;

关键词：

catalytic ozonation; Mn-Fe-K modified ceramic honeycomb; benzophenone;

D O I：

10.1016/S1001-0742(06)60040-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Comparative studies of ozonation alone, ceramic honeycomb-catalyzed and Mn-Fe-K modified ceramic honeycomb catalyzed ozonation processes have been undertaken with benzophenone as the model organic pollutant. The experimental results showed that the presence of Mn-Fe-K modified ceramic honeycombs significantly increased the removal rate of benzophenone and TOC compared with that achieved by ozonation alone or ceramic honeycomb-catalyzed ozonation. The electron paramagnetic resonance (EPR) experiments verified that higher benzophenone removal rate was attribute to more hydroxyl radicals generated in the Mn-Fe-K modified ceramic honeycomb-catalyzed ozonation. Under the conditions of this experiment, the degradation rate of all the three ozonation processes are increasing with the amount of catalyst, temperature and value of pH increased in the solution. We also investigated the effects of different process of ozone addition, the optimum conditions for preparing catalyst and influence of the Mn-Fe-K modified ceramic honeycomb after multiple-repeated use.

引用

页码：1065 / 1072

页数：8

共 23 条

[1]

Andreozzi R, 2000, J CHEM TECHNOL BIOT, V75, P59, DOI 10.1002/(SICI)1097-4660(200001)75:1<59::AID-JCTB175>3.0.CO

[2]

2-X

[3] DETERMINATION OF OZONE IN WATER BY THE INDIGO METHOD [J].

BADER, H ;

HOIGNE, J .

WATER RESEARCH, 1981, 15 (04) :449-456

[4]

BARBABA KH, 2003, 27 IND WAST MID C BE, V46, P639

[5] Hydroxyl radical/ozone ratios during ozonation processes. II. The effect of temperature, pH, alkalinity, and DOM properties [J].

Elovitz, MS ;

von Gunten, U ;

Kaiser, HP .

OZONE-SCIENCE & ENGINEERING, 2000, 22 (02) :123-150

[6]

FERNANDO JB, 2002, APPL CATAL B-ENVIRON, V39, P221

[7]

GOTTSCHALK C, 2000, OZOANTION WATER WAST, P13

[8] ROLE OF HYDROXYL RADICAL REACTIONS IN OZONATION PROCESSES IN AQUEOUS-SOLUTIONS [J].

HOIGNE, J ;

BADER, H .

WATER RESEARCH, 1976, 10 (05) :377-386

[9]

Hoigne J., 1998, HDB ENV CHEM, V5C, DOI [DOI 10.1007/978-3-540-68089-5_5, 10.1007/978-3-540-68089-5_5]

[10] Catalytic ozonation: a promising advanced oxidation technology for water treatment [J].

Legube, B ;

Leitner, NKV .

CATALYSIS TODAY, 1999, 53 (01) :61-72

← 1 2 3 →