当前位置: X-MOL 学术Bioresource Technol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A new whole-cell biocatalyst for sulfur dioxide filtering and degradation.
Bioresource Technology ( IF 11.4 ) Pub Date : 2020-06-30 , DOI: 10.1016/j.biortech.2020.123755
Sara Haghighatian 1 , Elham Mazarei 1 , Mohammad Mahdi Doroodmand 1 , Axel Klein 2 , Mina Memarpoor-Yazdi 1
Affiliation  

In this study, the interaction of the magnetotactic bacterium with sulfite compounds and their potential to degrade SO2 was investigated using cyclic voltammetry (CV), molecular emission cavity analysis (MECA) and ion-exchange chromatography (IEC). This biofilter was able to degrade SO2 up to 22281 mg m−3 by disproportionation reaction and the formation of S2− and SO42− with ≥99% efficiency. Designed biofilter was able to restart the initial performance at least after seven cycles if it was used at 14-day intervals. According to theoretical studies, the value of mean free energy (E) obtained using the Dubinin-Radushkevich isotherm model was 0.02 kJ mol−1, which is in the range expected for physical adsorption. Designed biofilter can be considered as a powerful tool to degrade SO2 in diverse urban and industrial centers.



中文翻译:

一种用于二氧化硫过滤和降解的新型全细胞生物催化剂。

在这项研究中,使用循环伏安法(CV),分子发射腔分析(MECA)和离子交换色谱法(IEC)研究了趋磁细菌与亚硫酸盐化合物的相互作用及其降解SO 2的潜力。该生物滤池能够通过歧化反应以及形成S 2−和SO 4 2-的效率≥99%降解高达22281 mg m -3的SO 2。如果设计的生物滤池每隔14天使用一次,则至少可以在七个周期后重新开始其初始性能。根据理论研究,使用Dubinin-Radushkevich等温模型获得的平均自由能(E)值为0.02 kJ mol -1,该值在物理吸附的预期范围内。设计的生物过滤器可以被视为在各种城市和工业中心降解SO 2的有力工具。

更新日期:2020-07-03
down
wechat
bug