期刊
BIORESOURCE TECHNOLOGY
卷 353, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2022.127147
关键词
Bioelectrochemical system; Moving bed biofilm reactor; Acid orange; Refractory wastewater; Mineralization
资金
- National Natural Science Foundation of China [21906037]
- Academic Backbone Project of Northeast Agricultural University [LBH-TZ2012]
- Heilongjiang Postdoctoral Science Founda-tion [2021TS18]
- State Key Laboratory of Urban Water Resource and Environment (Harbin Institute of Technology)
In this study, a stacked integrated system with anaerobic bioelectrochemical system (BES) and aerobic moving bed biofilm reactor (MBBR) was developed to improve the decolorization and mineralization of azo dye. The integrated system showed excellent performance in both the pretreatment and post-treatment of refractory wastewater.
In this study, a stacked integrated system with anaerobic bioelectrochemical system (BES) and aerobic moving bed biofilm reactor (MBBR) was developed to improve the decolorization and mineralization of azo dye. This stacked BES-MBBR exhibited better performance with acid orange (AO7) decolorization of 96.4 +/- 0.6% and chemical oxygen demand (COD) removal of 87.7 +/- 4.4%. Contribution of each module in the BES and MBBR stages indicated that BES modules enhanced the pretreatment process in AO7 decolorization, and MBBR played an important role in further removal of COD. The mechanism analysis indicated that the azo bond was cleaved with reductive decolorization at biocathode in the anaerobic BES stages, and then the intermediate products can be further oxidized with COD removal in the aerobic MBBR stage. This work demonstrated that the integrated system with stacked anaerobic BES and aerobic MBBR could provide a promising way for the pretreatment and post-treatment of refractory wastewater.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据