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Treatment of landfill leachate nanofiltration concentrate by a three-dimensional electrochemical technology with waste aluminum scraps as particle electrodes: Efficacy, mechanisms, and enhancement effect of subsequent electrocoagulation

文献类型：期刊论文

作者Li, Jie1; Wang, Lei2; Lu, Jianbo2; Peng, Wuliang1; Chen, Jing3; Jiang, Guangming4; Liu, Dongfang5
刊名WASTE MANAGEMENT
出版日期2024
卷号173页码:118-130
关键词Landfill leachate nanofiltration concentrate Particle electrodes Aluminum scraps Electrochemical oxidation Electrocoagulation
ISSN号0956-053X
DOI10.1016/j.wasman.2023.11.016
通讯作者Lu, Jianbo(jianbo98@126.com)
英文摘要Landfill leachate nanofiltration concentrate is a kind of wastewater containing high concentrations of color and refractory organics. Herein, we proposed a novel three-dimensional electrochemical technology (3DET) with waste aluminum scraps as particle electrodes for its treatment. The planar and particle electrodes were first optimized. Ti/RuO2 and graphite were used as anodes in the two-dimensional electrochemical technology (2DET). In the light of contaminant removal (color, UV254, COD, and TOC), chlorine reduction, and energy consumption, graphite was selected as planar anodes and cathodes. Moreover, 3DET with Al particle electrodes (Al 3DET) outperformed that with conventional granular activated carbon electrodes, 2DET, and Al particles. At 120 min, the removal efficiencies of color, UV254, COD, and TOC using Al 3DET were 98.94 %, 84.72 %, 51.93 %, and 67.46 %, respectively. UV-vis and EEM spectroscopy, and GC-MS analyses indicate that macromolecular organic matter such as humic-like substances could be effectively degraded and simultaneously removed. Reactive species identification tests including free radical quenching and EPR spectra were conducted. The results indicate that in addition to anodic direct oxidation, indirect oxidation by oxidative species (H2O2, (OH)-O-center dot, and RCS) and flocculation by Al species also played a vital role in contaminant removal. Continuous-flow experiments show that Fe EC as a post -treatment step of Al 3DET could effectively provide a neutralization effect for the 3DET effluent and enhance the removal efficiency of contaminants. The total operating cost of combined process was 1.307 USD/m(3). This study shows that the Al 3DET-Fe EC process is a promising technology for the treatment of nanofiltration concentrate.
WOS关键词INCINERATION LEACHATE ; REFRACTORY ORGANICS ; REMOVAL ; DEGRADATION ; PERFORMANCE ; OXIDATION ; ACID ; SYSTEM ; WATER ; SLAG
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001166266700001
资助机构Shandong Provincial Natural Science Foundation
源URL[http://ir.yic.ac.cn/handle/133337/36308]  
专题海岸带生物学与生物资源利用重点实验室
烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
通讯作者Lu, Jianbo
作者单位1.Yantai Univ, Sch Econ & Management, Yantai 264005, Shandong, Peoples R China
2.Yantai Univ, Sch Civil Engn, Yantai 264005, Shandong, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
4.Univ Wollongong, Sch Civil Min & Environm Engn, Wollongong, Australia
5.Nankai Univ, Sch Environm Sci & Engn, Tianjin 300350, Peoples R China
推荐引用方式
GB/T 7714		 Li, Jie,Wang, Lei,Lu, Jianbo,et al. Treatment of landfill leachate nanofiltration concentrate by a three-dimensional electrochemical technology with waste aluminum scraps as particle electrodes: Efficacy, mechanisms, and enhancement effect of subsequent electrocoagulation[J]. WASTE MANAGEMENT,2024,173:118-130.
APA Li, Jie.,Wang, Lei.,Lu, Jianbo.,Peng, Wuliang.,Chen, Jing.,...&Liu, Dongfang.(2024).Treatment of landfill leachate nanofiltration concentrate by a three-dimensional electrochemical technology with waste aluminum scraps as particle electrodes: Efficacy, mechanisms, and enhancement effect of subsequent electrocoagulation.WASTE MANAGEMENT,173,118-130.
MLA Li, Jie,et al."Treatment of landfill leachate nanofiltration concentrate by a three-dimensional electrochemical technology with waste aluminum scraps as particle electrodes: Efficacy, mechanisms, and enhancement effect of subsequent electrocoagulation".WASTE MANAGEMENT 173(2024):118-130.

入库方式： OAI收割

来源：烟台海岸带研究所

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