School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, PR China.
School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, PR China.
Bioresour Technol. 2022 Feb;346:126653. doi: 10.1016/j.biortech.2021.126653. Epub 2021 Dec 31.
A three-dimensional biofilm electrode magnetism reactor (3DBEMR) was constructed to removal naproxen (NPX). This study evaluated 3DBEMR performance in removal of refractory NPX, while also discussing the effect of the electro-magnetic superposition on microbial community by high throughput sequencing. Results indicated that 3DBEMR's average removal rate for NPX stood at 88.36%, representing an increase by 75.24%, 65.03% and 12.36%, respectively, compared to 3DBR (Three-Dimensional Biofilm Reactor), 3DBMR (Three-Dimensional Biofilm Magnetism Reactor) and 3DBER (Three-Dimensional Biofilm Electrode Reactor). This was attributed to the influence of electro-magnetic adsorption, electro-oxidaton/catalysis, and electro-magnetic biodegradation. Another major contributing factor to NPX removal was the presence in 3DBEMR of high-abundance genera such as Rhodobacter, Porphyrobacter, Methyloversatilis, Sphingopyxis,Bosea, Singulisphaera, Sphingomonas. Therefore, the 3DBEMR was successfully demonstrated to be a flexible and effective technique in NPX degradation, which would help to better understand the effect of superposition of electric and magnetic fields on microbial community.
构建了三维生物膜电极磁场反应器（3DBEMR）以去除萘普生（NPX）。本研究评估了 3DBEMR 在去除难降解 NPX 方面的性能，同时通过高通量测序讨论了电磁场叠加对微生物群落的影响。结果表明，3DBEMR 对 NPX 的平均去除率为 88.36%，分别比 3DBR（三维生物膜反应器）、3DBMR（三维生物膜磁场反应器）和 3DBER（三维生物膜电极反应器）提高了 75.24%、65.03%和 12.36%。这归因于电磁场吸附、电氧化/催化和电磁场生物降解的影响。NPX 去除的另一个主要因素是 3DBEMR 中存在高丰度属，如红杆菌属、卟啉单胞菌属、甲基奥氏菌属、鞘氨醇单胞菌属、博氏菌属、单球菌属和鞘氨醇单胞菌属。因此，3DBEMR 被成功证明是一种灵活有效的 NPX 降解技术，有助于更好地理解电场和磁场叠加对微生物群落的影响。
