School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China.
School of Civil Engineering and Architecture, University of Jinan, Jinan 250022, China.
Bioresour Technol. 2019 Feb;274:447-458. doi: 10.1016/j.biortech.2018.12.015. Epub 2018 Dec 7.
Electric biological integration reactor (EBIR) was designed and built for the treatment of wastewater containing ibuprofen. This study evaluates the removal performance of EBIR by comparison with biological aerated filter (BAF), while also discussing the optimal operational parameters of EBIR within the context of the response surface methodology. The results indicate that EBIR exhibits higher average removal rates of ibuprofen, chemical oxygen demand (COD) and NH-N, i.e. 93.48%, 86.72% and 85.19%, representing an increase by 61.59%, 14.57% and 10.49%, respectively, compared with BAF. The optimal conditions for EBIR were 12.73 A/m current density (CD), 3.5 h hydraulic retention time and 0.08 mg/L influent ibuprofen concentration. In addition, microbial community structures were detected using an Illumina Miseq PE300 system, which were different at the phylum, class, and genus levels between EBIR and BAF. The microbial communities of EBIR, including mainly Trichococcus, Aeromonas, Saprospiraceae_uncultured, Thiobacillus, Aeromonas Flavobacterium, Sphingopyxis, Candidate_division_TM7_norank, Acinetobacter and physicochemical properties indirectly confirmed the excellent removal performance at 12.73 A/m CD.
电生物集成反应器（EBIR）被设计并建造用于处理含有布洛芬的废水。本研究通过与曝气生物滤池（BAF）进行比较，评估了 EBIR 的去除性能，同时还讨论了响应面法下 EBIR 的最佳操作参数。结果表明，EBIR 对布洛芬、化学需氧量（COD）和 NH-N 的平均去除率分别为 93.48%、86.72%和 85.19%，比 BAF 分别提高了 61.59%、14.57%和 10.49%。EBIR 的最佳条件为电流密度 12.73 A/m、水力停留时间 3.5 h 和进水布洛芬浓度 0.08 mg/L。此外，还使用 Illumina Miseq PE300 系统检测了微生物群落结构，EBIR 和 BAF 在门、纲和属水平上的微生物群落结构存在差异。EBIR 的微生物群落主要包括 Trichococcus、Aeromonas、Saprospiraceae_uncultured、Thiobacillus、Aeromonas Flavobacterium、Sphingopyxis、Candidate_division_TM7_norank、Acinetobacter，以及间接证实了在 12.73 A/m CD 下具有优异去除性能的理化性质。
