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Characterization of tetracycline-resistant microbiome in soil-plant systems by combination of H(2)18O-based DNA-Stable isotope probing and metagenomics
Fan, Haonan; Wu, Shanghua; Dong, Wenxu; Li, Xianglong; Dong, Yuzhu; Wang, Shijie; Zhu, Yong-Guan; Zhuang, Xuliang
2021-12-15
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0045-6535
Volume283Pages:-
AbstractElectrocoagulation (EC) is an efficient technology for removing oil-in-water (O/W) emulsions. However, the role of the electric field in EC for demulsification remains unclear and an obstacle for improving reactor design and operation. Herein, demulsification and oil removal performance by EC under different electric field conditions were investigated. Increasing the EC electric field intensity was beneficial for oil removal, and tandem EC had a higher electric field intensity than parallel EC under the same current density. When the current density was 0.67 mA cm(-2), the chemical oxygen demand (COD) removal rates of tandem EC and parallel EC were 1 136.47 and 745.99 g COD kWh(-1), respectively. Oil droplets were polarized by the electric field, and then aligned and aggregated parallel to the direction of the electric field. Increasing electric field intensity accelerated the aggregation of oil droplets, as verified by physical fluid simulation. Furthermore, results showed a higher Al3+ dosage and larger electric field intensity in EC with increasing current density, which was conducive to oil droplet demulsification. These findings provide insight into and a theoretical basis for improving oil removal by EC processes.
Department中国科学院环境生物技术重点实验室
KeywordDemulsification Electric field Electrocoagulation Oil water separation
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46887
Collection中国科学院环境生物技术重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Biotechnol, Beijing 100085, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Ctr Agr Resources Res, Inst Genet & Dev Biol, Key Lab Agr Water Resources, Shijiazhuang 050021, Hebei, Peoples R China
Recommended Citation
GB/T 7714
Fan, Haonan,Wu, Shanghua,Dong, Wenxu,et al. Characterization of tetracycline-resistant microbiome in soil-plant systems by combination of H(2)18O-based DNA-Stable isotope probing and metagenomics[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,283:-.
APA Fan, Haonan.,Wu, Shanghua.,Dong, Wenxu.,Li, Xianglong.,Dong, Yuzhu.,...&Zhuang, Xuliang.(2021).Characterization of tetracycline-resistant microbiome in soil-plant systems by combination of H(2)18O-based DNA-Stable isotope probing and metagenomics.JOURNAL OF HAZARDOUS MATERIALS,283,-.
MLA Fan, Haonan,et al."Characterization of tetracycline-resistant microbiome in soil-plant systems by combination of H(2)18O-based DNA-Stable isotope probing and metagenomics".JOURNAL OF HAZARDOUS MATERIALS 283(2021):-.
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