雾
集聚经济
硫酸
入口
声压
材料科学
气流
声学
体积流量
航程(航空)
环境科学
分析化学(期刊)
气象学
化学
复合材料
机械
化学工程
冶金
色谱法
工程类
物理
机械工程
作者
A. Sadighzadeh,Hassan Mohammadpour,Leila Omidi,Mohammad Javad Jafari
标识
DOI:10.1016/j.serj.2017.09.002
摘要
The application of acoustic fields at high sound pressure levels (SPLs) for removing sulfuric acid mists from the air stream was studied. An acoustic agglomeration chamber was used to conduct the experiments. The studied SPLs ranged from 115 to 165 decibel (dB), with three inlet concentrations of acid mist at 5–10, 15–20, and 25–30 ppm. The air flow rates for conducting experiments were 20, 30, and 40 L min−1. The concentration of sulfuric acid mist was measured using US Environmental Protection Agency Method 8 at inlet and outlet of the chamber. The resonance frequencies for experiments were found to be 852, 1410, and 3530 Hz. The maximum acoustic agglomeration efficiency of 86% was obtained at optimum frequency of 852 Hz. The analysis of variance test revealed significant differences between agglomeration efficiency at three resonance frequencies (p-value < 0.001). The maximum acoustic agglomeration efficiency was obtained at SPL level of 165 dB. High initial concentrations of acid mists and lower air flow rates enhance the acoustic agglomeration of mists. High removal efficiency of acid mists from air stream could be achieved by the application of acoustic agglomeration method with appropriate range of frequencies and SPLs.
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