{"title":"强化电动法修复高浓度铬污染土壤","authors":"Guo Lin, L. Jun, Chenxu Yao, Zhang Xiaocun","doi":"10.15446/ESRJ.V25N2.93896","DOIUrl":null,"url":null,"abstract":"How to cite item Guo, L., Zhang, X., Chen, Y., & Liu, J. (2021). Remediation of high concentration chromium contaminated soil by Enhanced Electrodynamic Method. Earth Sciences Research Journal, 25(2), 247-253. DOI: https://doi.org/10.15446/ esrj.v25n2.93896 High concentration of chromium salt has caused serious pollution to the environment since its production. The longstanding chromium residue has polluted the soil, and the total chromium concentration of some polluted soil has reached 30000 mg / kg. For the remediation of chromium contaminated soil, the enhanced electrodynamic method was proposed. In order to improve the efficiency of electrokinetic remediation of chromium contaminated soil, two enhanced electrokinetic remediation technologies were proposed: Electrokinetic oxidation enhanced remediation technology and electrokinetic enhanced remediation technology. Cr (III) in soil was polluted by oxidant chromium oxide to increase the content of dissolved Cr (VI),so as to improve the efficiency of electric repair, in order to find a suitable PRB medium as a breakthrough to improve the repair efficiency. The experimental results show that compared with the traditional electrodynamic technology, the enhanced electrodynamic method can effectively improve the removal rate of total chromium in the soil, and provide technical support for the enhanced electrodynamic remediation of chromium contaminated soil. The pH control system makes the pH of anode and cathode electrolyte always maintain acidic, and the H+ migration speed is faster than that of OH-, and the pH of soil near the anode is lower than that near the cathode. ABSTRACT Remediation of high concentration chromium contaminated soil by Enhanced Electrodynamic Method","PeriodicalId":11456,"journal":{"name":"Earth Sciences Research Journal","volume":"25 1","pages":"247-253"},"PeriodicalIF":0.7000,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Remediation of high concentration chromium contaminated soil by Enhanced Electrodynamic Method\",\"authors\":\"Guo Lin, L. Jun, Chenxu Yao, Zhang Xiaocun\",\"doi\":\"10.15446/ESRJ.V25N2.93896\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"How to cite item Guo, L., Zhang, X., Chen, Y., & Liu, J. (2021). Remediation of high concentration chromium contaminated soil by Enhanced Electrodynamic Method. Earth Sciences Research Journal, 25(2), 247-253. DOI: https://doi.org/10.15446/ esrj.v25n2.93896 High concentration of chromium salt has caused serious pollution to the environment since its production. The longstanding chromium residue has polluted the soil, and the total chromium concentration of some polluted soil has reached 30000 mg / kg. For the remediation of chromium contaminated soil, the enhanced electrodynamic method was proposed. In order to improve the efficiency of electrokinetic remediation of chromium contaminated soil, two enhanced electrokinetic remediation technologies were proposed: Electrokinetic oxidation enhanced remediation technology and electrokinetic enhanced remediation technology. Cr (III) in soil was polluted by oxidant chromium oxide to increase the content of dissolved Cr (VI),so as to improve the efficiency of electric repair, in order to find a suitable PRB medium as a breakthrough to improve the repair efficiency. The experimental results show that compared with the traditional electrodynamic technology, the enhanced electrodynamic method can effectively improve the removal rate of total chromium in the soil, and provide technical support for the enhanced electrodynamic remediation of chromium contaminated soil. The pH control system makes the pH of anode and cathode electrolyte always maintain acidic, and the H+ migration speed is faster than that of OH-, and the pH of soil near the anode is lower than that near the cathode. ABSTRACT Remediation of high concentration chromium contaminated soil by Enhanced Electrodynamic Method\",\"PeriodicalId\":11456,\"journal\":{\"name\":\"Earth Sciences Research Journal\",\"volume\":\"25 1\",\"pages\":\"247-253\"},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2021-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Earth Sciences Research Journal\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.15446/ESRJ.V25N2.93896\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"GEOSCIENCES, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Earth Sciences Research Journal","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.15446/ESRJ.V25N2.93896","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
Remediation of high concentration chromium contaminated soil by Enhanced Electrodynamic Method
How to cite item Guo, L., Zhang, X., Chen, Y., & Liu, J. (2021). Remediation of high concentration chromium contaminated soil by Enhanced Electrodynamic Method. Earth Sciences Research Journal, 25(2), 247-253. DOI: https://doi.org/10.15446/ esrj.v25n2.93896 High concentration of chromium salt has caused serious pollution to the environment since its production. The longstanding chromium residue has polluted the soil, and the total chromium concentration of some polluted soil has reached 30000 mg / kg. For the remediation of chromium contaminated soil, the enhanced electrodynamic method was proposed. In order to improve the efficiency of electrokinetic remediation of chromium contaminated soil, two enhanced electrokinetic remediation technologies were proposed: Electrokinetic oxidation enhanced remediation technology and electrokinetic enhanced remediation technology. Cr (III) in soil was polluted by oxidant chromium oxide to increase the content of dissolved Cr (VI),so as to improve the efficiency of electric repair, in order to find a suitable PRB medium as a breakthrough to improve the repair efficiency. The experimental results show that compared with the traditional electrodynamic technology, the enhanced electrodynamic method can effectively improve the removal rate of total chromium in the soil, and provide technical support for the enhanced electrodynamic remediation of chromium contaminated soil. The pH control system makes the pH of anode and cathode electrolyte always maintain acidic, and the H+ migration speed is faster than that of OH-, and the pH of soil near the anode is lower than that near the cathode. ABSTRACT Remediation of high concentration chromium contaminated soil by Enhanced Electrodynamic Method
期刊介绍:
ESRJ publishes the results from technical and scientific research on various disciplines of Earth Sciences and its interactions with several engineering applications.
Works will only be considered if not previously published anywhere else. Manuscripts must contain information derived from scientific research projects or technical developments. The ideas expressed by publishing in ESRJ are the sole responsibility of the authors.
We gladly consider manuscripts in the following subject areas:
-Geophysics: Seismology, Seismic Prospecting, Gravimetric, Magnetic and Electrical methods.
-Geology: Volcanology, Tectonics, Neotectonics, Geomorphology, Geochemistry, Geothermal Energy, ---Glaciology, Ore Geology, Environmental Geology, Geological Hazards.
-Geodesy: Geodynamics, GPS measurements applied to geological and geophysical problems.
-Basic Sciences and Computer Science applied to Geology and Geophysics.
-Meteorology and Atmospheric Sciences.
-Oceanography.
-Planetary Sciences.
-Engineering: Earthquake Engineering and Seismology Engineering, Geological Engineering, Geotechnics.