AIR QUALITY ATMOSPHERE AND HEALTH
|
2024年
/
17卷
/
06期
关键词:
Gaseous volatile organic compounds;
Ultrasound;
Advanced oxidation process;
Air purification;
D O I:
10.1007/s11869-021-01026-6
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
The decomposition of gaseous toluene as a representative volatile organic compound using 200 kHz ultrasonic waves was investigated as a new air cleaning method that does not require an ultraviolet light source, in accordance with the Minamata Convention on Mercury. Upon applying ultrasonic irradiation to water in a batch reactor, the removal ratio of gaseous toluene above the water reached 91.0% at 10 ppm and 92.7% at 40 ppm. The addition of t-BuOH, a radical scavenger that suppresses ultrasonic decomposition, inhibited the removal of gaseous toluene, indicating that the ultrasonic irradiation not only accelerated the dissolution of toluene into the water but also mediated its decomposition. Further experiments in a flow system revealed that the removal ratio of gaseous toluene decreased with increasing toluene flow rate, whereas the total mass of toluene removed increased, suggesting that sufficient amounts of the active species, such as (OH)-O-center dot radicals, required for the initial decomposition of toluene were formed in the liquid phase upon ultrasonic irradiation.
机构:
Natl Taipei Univ Technol, Dept Chem Engn & Biotechnol, Taipei, TaiwanUniv Nottingham Malaysia, Dept Chem & Environm Engn, Jalan Broga, Semenyih 43500, Selangor, Malaysia
Chao, Hsin
Tiong, T. Joyce
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机构:
Univ Nottingham Malaysia, Dept Chem & Environm Engn, Jalan Broga, Semenyih 43500, Selangor, MalaysiaUniv Nottingham Malaysia, Dept Chem & Environm Engn, Jalan Broga, Semenyih 43500, Selangor, Malaysia
Tiong, T. Joyce
Yap, Yeow Hong
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机构:
Univ Tunku Abdul Rahman, Lee Kong Chian Fac Engn & Sci, Dept Chem Engn, Kajang 43000, Selangor, MalaysiaUniv Nottingham Malaysia, Dept Chem & Environm Engn, Jalan Broga, Semenyih 43500, Selangor, Malaysia
Yap, Yeow Hong
Chong, Siewhui
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机构:
Univ Nottingham Malaysia, Dept Chem & Environm Engn, Jalan Broga, Semenyih 43500, Selangor, MalaysiaUniv Nottingham Malaysia, Dept Chem & Environm Engn, Jalan Broga, Semenyih 43500, Selangor, Malaysia
Chong, Siewhui
Pan, Guan-Ting
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h-index: 0
机构:
Natl Taipei Univ Technol, Dept Chem Engn & Biotechnol, Taipei, TaiwanUniv Nottingham Malaysia, Dept Chem & Environm Engn, Jalan Broga, Semenyih 43500, Selangor, Malaysia
Pan, Guan-Ting
Chan, Yi-Jing
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机构:
Univ Nottingham Malaysia, Dept Chem & Environm Engn, Jalan Broga, Semenyih 43500, Selangor, MalaysiaUniv Nottingham Malaysia, Dept Chem & Environm Engn, Jalan Broga, Semenyih 43500, Selangor, Malaysia
Chan, Yi-Jing
Yang, Thomas C. K.
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机构:
Natl Taipei Univ Technol, Dept Chem Engn & Biotechnol, Taipei, TaiwanUniv Nottingham Malaysia, Dept Chem & Environm Engn, Jalan Broga, Semenyih 43500, Selangor, Malaysia
Yang, Thomas C. K.
CHEMICAL ENGINEERING RESEARCH & DESIGN,
2023,
193
: 479
-
492
机构:
Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R ChinaFuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R China
Fan, Gongduan
Peng, Huiping
论文数: 0引用数: 0
h-index: 0
机构:
Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R ChinaFuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R China
Peng, Huiping
Zheng, Xiaomei
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h-index: 0
机构:
Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R ChinaFuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R China
Zheng, Xiaomei
Luo, Jing
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h-index: 0
机构:
Fujian Minke Environm Technol Dev Co Ltd, Fuzhou 350002, Fujian, Peoples R ChinaFuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R China
Luo, Jing
Chen, Wei
论文数: 0引用数: 0
h-index: 0
机构:
Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R ChinaFuzhou Univ, Coll Civil Engn, Fuzhou 350116, Fujian, Peoples R China