论文部分内容阅读
为探索竹炭在文物保存环境领域的应用特征,研究了不同粒径竹炭对于SO_2净化的影响并测定了竹炭的吸附量,研究了竹炭净化二元混合污染物耦合的效果。结果表明:相比果壳、柳壳、椰壳3种生物质炭,竹炭净化SO_2的效果最佳,当粒径小于1.7mm时,净化效率达到(99.6±0.2)%;单位质量的竹炭对SO_2的吸附容量为8.46mg/g;此外,低浓度NO和NO_2对SO_2没有抑制作用,但高浓度NO_x对SO_2净化有较大的抑制作用,当NO浓度为536μg/m~3时SO_2的净化效果较NO浓度为268μg/m~3时降低了2.9%;当NO_2的浓度从411μg/m~3上升至821μg/m~3时,SO_2的净化效果降低了5.7%,而SO_2对于甲酸、乙酸的净化效果抑制作用在-1%以内,且在实验浓度范围内的SO_2受甲酸、乙酸影响较低,平均净化效率分别为90.4%和90.5%。
In order to explore the application characteristics of bamboo charcoal in the preservation of cultural relics, the effect of bamboo charcoal with different particle sizes on the purification of SO 2 was studied. The adsorption capacity of bamboo charcoal was also determined. The coupling effect of bamboo charcoal purification of binary mixed pollutants was studied. The results showed that the effect of SO_2 purification by bamboo charcoal was the best when compared with the three kinds of biomass charcoal such as husk, willow shell and coconut shell. When the particle size was less than 1.7mm, the purification efficiency was 99.6 ± 0.2% The adsorption capacity of SO 2 was 8.46 mg / g. In addition, the low concentration of NO and NO 2 had no effect on SO 2, but the high concentration of NO x inhibited the purification of SO 2. When the concentration of NO was 536 μg / m 3, The results showed that when the concentration of NO 2 increased from 411 μg / m 3 to 821 μg / m 3, the purifying effect of SO 2 decreased 5.7%, while the effect of SO 2 on the formation of formic acid, acetic acid The inhibition effect of purifying effect was within -1%, and SO 2 in the range of experimental concentration was lower by formic acid and acetic acid. The average purifying efficiency was 90.4% and 90.5% respectively.