Degradation of 2-mercaptobenzothizaole in microbial electrolysis cells: Intermediates, toxicity, and microbial communities
[EN] 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 m...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Universidad Rey Juan Carlos |
| Repositorio: | BULERIA. Repositorio Institucional de la Universidad de León |
| OAI Identifier: | oai:buleria.unileon.es:10612/18096 |
| Acceso en línea: | https://www.sciencedirect.com/science/article/pii/S0048969720326723?via%3Dihub https://hdl.handle.net/10612/18096 |
| Access Level: | acceso abierto |
| Palabra clave: | Ingeniería química Química 2-Mercaptobenzothiazole Bioremediation Biotoxicity Graphene Microbial electrolysis Cell 3308.10 Tecnología de Aguas Residuales 3303 Ingeniería y Tecnología Químicas 3305.30 Alcantarillado y depuración de Aguas |
| Sumario: | [EN] 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∙m−3 to 27.9 eqtox∙m−3). |
|---|