Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
Department of Energy and Refrigerating Air-Conditioning Engineering and Research Center of Energy Conservation for New Generation of Residential, Commercial, and Industrial Sectors, National Taipei University of Technology, Taipei 10608, Taiwan.
Bioresour Technol. 2019 Nov;292:122001. doi: 10.1016/j.biortech.2019.122001. Epub 2019 Aug 13.
A combined process that consisted of a hybrid anaerobic reactor (HAR) with an integral bioelectrochemical system and aerobic biofilm reactor (ABFR) was established for simulated azo dye wastewater treatment (domestic wastewater containing dye acid orange 7). The split combination form that separated HAR and ABFR into two individual reactors recorded a decolorization efficiency of 81.23 ± 0.12%, which was about 8% higher than that HAR and ABFR were stacked together into a single up-flow reactor. Implementation of reflux improved the decolorization and chemical oxygen demand (COD) removal in both the processes. Decolorization efficiency achieved 97.52 ± 0.66% in split process at a reflux ratio of 1 and the COD was 89 ± 2 mg/L in the final effluent. Further increasing the reflux ratio to 3 did not have any significance in treatment performance of the reactors. This study comprehensively revealed the influence of combination forms and reflux ratio on the performance of combined process.
建立了一种组合工艺，包括带有集成生物电化学系统的混合厌氧反应器（HAR）和需氧生物膜反应器（ABFR），用于模拟偶氮染料废水处理（含有酸性橙 7 的生活污水）。将 HAR 和 ABFR 分离到两个单独的反应器的分体组合形式记录的脱色效率为 81.23±0.12%，比 HAR 和 ABFR 堆叠在一个上流式反应器中的效率高约 8%。回流的实施提高了两种工艺的脱色和化学需氧量（COD）去除率。在回流比为 1 时，分体工艺的脱色效率达到 97.52±0.66%，最终出水的 COD 为 89±2mg/L。进一步将回流比提高到 3 对反应器的处理性能没有任何意义。本研究全面揭示了组合形式和回流比对组合工艺性能的影响。
