Catalytic ozonation of phenol in water with natural brucite and magnesia

被引：81

作者：

He, Kun ^{[1
]}

Dong, Yu Ming ^{[2
]}

Li, Zhen ^{[1
]}

Yin, Lin ^{[1
]}

Zhang, Ai Min ^{[2
]}

Zheng, Yi Chun ^{[1
]}

机构：

[1] Nanjing Univ, Dept Earth Sci, Nanjing 210093, Peoples R China

[2] Nanjing Univ, Sch Chem & Chem Engn, Key Lab Mesoscop Chem, Nanjing 210093, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2008年 / 159卷 / 2-3期

基金：

中国国家自然科学基金;

关键词：

Advanced oxidation processes; Catalytic ozonation; Phenol; Brucite; Magnesia;

D O I：

10.1016/j.jhazmat.2008.02.061

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Natural brucite and magnesia were applied as catalysts in catalytic ozonation of phenol in this work. It was found that both brucite and magnesia had remarkable accelerations on degradation of phenol and removal of COD in water. On this basis, effective and feasible routes for catalytic ozonation of phenol in water were proposed. The influence of initial pH value, radical scavengers and reaction temperature were investigated. The results revealed that there were different ozonation mechanisms in two systems: molecular ozone direct oxidation mechanism was proved in catalytic ozonation with brucite, and hydroxyl radical mechanism was demonstrated to play a main role in catalytic ozonation with magnesia. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：587 / 592

页数：6

共 35 条

[21] Experimental study of brucite dissolution and precipitation in aqueous solutions: Surface speciation and chemical affinity control
Pokrovsky, OS
Schott, J
[J]. GEOCHIMICA ET COSMOCHIMICA ACTA, 2004, 68 (01) : 31 - 45
[22] Degradation of aqueous phenol and chlorinated phenols by ozone
Poznyak, T
Vivero, J
[J]. OZONE-SCIENCE & ENGINEERING, 2005, 27 (06) : 447 - 458
[23] POZNYAK T, 2005, OZONE-SCI ENG, V27, P1
[24] Reaction pathway of the catalytic wet air oxidation of phenol with a Fe/activated carbon catalyst
Quintanilla, A.
Casas, J. A.
Mohedano, A. F.
Rodriguez, J. J.
[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 67 (3-4) : 206 - 216
[25] Catalytic wet oxidation of phenol on active carbon:: stability, phenol conversion and mineralization
Santos, A
Yustos, P
Cordero, T
Gomis, S
Rodríguez, S
García-Ochoa, F
[J]. CATALYSIS TODAY, 2005, 102 : 213 - 218
[26] Study of the copper leaching in the wet oxidation of phenol with CuO-based catalysts: Causes and effects
Santos, A
Yustos, P
Quintanilla, A
Ruiz, G
Garcia-Ochoa, F
[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2005, 61 (3-4) : 323 - 333
[27] Wet oxidation of phenol, cresols and nitrophenols catalyzed by activated carbon in acid and basic media
Santos, Aurora
Yustos, Pedro
Rodriguez, Sergio
Garcia-Ochoa, Felix
[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 65 (3-4) : 269 - 281
[28] The effect of phenol on the growth of Chlorella vulgaris and Chlorella VT-1
Scragg, A. H.
[J]. ENZYME AND MICROBIAL TECHNOLOGY, 2006, 39 (04) : 796 - 799
[29] SEYHAN N, 1999, ORGANIC CHEM STRUCTU
[30] Buffer behavior of brucite in removing copper from acidic Solution
Shao, L
Zhou, Y
Chen, JF
Wu, W
Lu, SC
[J]. MINERALS ENGINEERING, 2005, 18 (06) : 639 - 641

← 1 2 3 4 →