Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 342, Issue -, Pages 326-334Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2017.08.042
Keywords
Simultaneous absorption of SO2 and NO; Ultrasound (US)/Fe2+/heat; Activated persulfate; Sulfate radical (SO4-center dot)); Hydroxyl radical (center dot OH)
Categories
Funding
- National Natural Science Foundation of China [51576094, 51206067]
- Jiangsu Six Personnel Peak Talent-Funded Projects [GDZB-014]
- China Postdoctoral Science Foundation [2017M610306]
- Key Laboratory of Efficient & Clean Energy Utilization, College of Hunan Province (Changsha University of Science Technology) [2017NGQ002]
- Training Project of Jiangsu University Youth Backbone Teacher
Ask authors/readers for more resources
A novel process on simultaneous absorption of SO2 and NO from flue gas using ultrasound (US)/Fe(2+)Theat coactivated persulfate system was proposed. The influencing factors, active species, products and mechanism of SO2 and NO removal were investigated. The results indicate that US enhances NO removal due to enhancement of mass transfer and chemical reaction. US of 28 kHz is more effective than that of 40 kHz. NO removal efficiency increases with increasing persulfate concentration, ultrasonic power density and Fe2+ concentration (at high persulfate concentration). Solution pH, solution temperature and Fe2+ concentration (at low persulfate concentration) have double effect on NO removal. SO2 is completely removed in most of tested removal systems, except for using water absorption. US, Fe2+ and heat have a synergistic effect for activating persulfate to produce free radicals, and US/Fe(2+)iheat coactivated persulfate system achieves the highest NO removal efficiency..OH and SO(4)(-)l play a leading role for NO oxidation, and persulfate only plays a complementary role for NO oxidation. (C) 2017 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available