E3S Web Conf.
Volume 158, 20202019 7th International Conference on Environment Pollution and Prevention (ICEPP 2019)
|Number of page(s)||7|
|Section||Pollution Control Engineering|
|Published online||23 March 2020|
Simulataneous removal of nitrogen and sulfur oxides using the NaClO2/NaOH composite absorbent via ultrasonic atomization
Environmental protection, China University of Mining & Technology (Beijing), 100083 Beijing, China
∗ Corresponding author: email@example.com
In this study, NaClO2 was used as an oxidant and mixed with NaOH to prepare a sodium-based composite absorbent. Simultaneous desulfurization and denitrification experiments were conducted in an ultrasonic atomization reactor and the effects of experimental parameters including pH value, NaClO2 concentration, initial concentration of NO, reaction temperature, the addition of SO2 and the utilization of ultrasonic atomization on desulfurization and denitrification efficiencies were investigated. Under the circumstance of the pH of 10, oxygen content of 8%, reaction temperature of 55oC, and NO concentration of 500 mg/m3, SO2 concentration of 1400 mg/m3, 69.38% of NO and 99.95% of SO2 can be removed using the composite absorbent composed of 0.02 mol/L NaClO2 and 0.1mmol/L NaOH. Ultrasonic atomization increased the denitrification rate by 10.6%.
© The Authors, published by EDP Sciences, 2020
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