论文标题
微生物电解细胞中2-甲苯苯二甲酸酯的降解：中间体，毒性和微生物群落
Degradation of 2-mercaptobenzothizaole in microbial electrolysis cells: intermediates, toxicity, and microbial communities
论文作者
论文摘要
在废水和地表水中经常检测到化合物2-甲苯苯二甲酸酯（MBT），这是对水生生物和人类健康的潜在威胁（已经证明了其诱变潜力）。这项研究研究了MBT在微生物电解细胞（MEC）和所涉及的微生物群落中的降解途径。结果表明，与裸露的阳极相比，石墨烯修饰的阳极促进了更丰富，发达和特定的社区的存在。此外，仅在配备了石墨烯处理的电极的反应器中检测到MBT苯环的OH取代基的连续添加。这两种现象及其外部电压的应用都可能与配备石墨烯修饰阳极（46.2 EQTOX/M3至27.9 EQTOX/M3）的MEC中观察到的生物毒性较大有关。
The compound 2-mercaptobenzothizaole (MBT) has been frequently detected in wastewater and surface water and is a potential threat to both aquatic organisms and human health (its mutagenic potential has been demonstrated). This study investigated the degradation routes of MBT in the anode of a microbial electrolysis cell (MEC) and the involved microbial communities. The results indicated that graphene-modified anodes promoted the presence of more enriched, developed, and specific communities compared to bare anodes. Moreover, consecutive additions of the OH substituent to the benzene ring of MBT were only detected in the reactor equipped with the graphene-treated electrode. Both phenomena, together with the application of an external voltage, may be related to the larger reduction of biotoxicity observed in the MEC equipped with graphene-modified anodes (46.2 eqtox/m3 to 27.9 eqtox/m3).
