Microbial removal of nitrogen monoxide (NO) under aerobic conditions
Microbial removal of nitrogen monoxide (NO) under aerobic conditions
复制标题
DOI：
10.1023/a:1005624815889
复制
发表时间：
2004
影响因子：
2.7
通讯作者：
K. Okuno;M. Hirai;M. Sugiyama;K. Haruta;M. Shoda
中科院分区：
文献类型：
--
作者：
K. Okuno;M. Hirai;M. Sugiyama;K. Haruta;M. Shoda
通过以土壤为填充材料的实验室规模的生物过滤器，以相当于道路上的低浓度供应由一氧化氮（NO）和二氧化氮（NO2）组成的氮氧化物气体（NOx）25天。土壤对NO2的去除率接近100%，对NO的去除率平均为60%，最高可达86%。以γ辐照土壤为填料时，NO2主要通过吸附或吸收进入填料而被完全去除。而灭菌土壤中NO的去除率仅为20%，说明土壤中NO是在好氧条件下通过微生物去除的。
Nitrogen oxide gas (NOx), consisting of nitrogen monoxide (NO) and nitrogen dioxide (NO2), at a low concentration corresponding to that on roads as a result of exhaust from automobiles, was supplied for 25 days through a laboratory-scale biofilter packed with soil as a packing material. The removal efficiency of NO2by soil was almost 100%, and the removal efficiency of NO was 60% on average and 86% at maximum. By using γ-irradiated soil as a packing material, NO2was completely removed mainly by adsorption onto or absorption into the packing material. However, the removal efficiency of NO in the sterilized soil was only 20%, suggesting that NO in soil was removed microbiologically under aerobic conditions.