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Study on Electrokinetic Remediation of Cadmium-contaminated Soil
Study on Electrokinetic Remediation of Cadmium-contaminated Soil
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摘要：
[Objectives] This study was conducted to explore the effect of electrokinetic remediation of Cd-contaminated soil.[Methods] By preparing Cd-contaminated soil and constructing an electrokinetic remediation experimental device,the effects of changing remediation time,voltage gradient,electrolyte type and power-on method on the removal rate of Cd were studied.[Results]When the voltage gradient was increased from 0.5 to 1.0 V/cm,the total Cd removal rate increased by 13%;and when the voltage gradient was increased from 1.0 to 1.5 V/cm,the total Cd removal rate only increased by 3%.Compared with 72 h of electrokinetic remediation,96 h of remediation increased the remediation rate by 4%,and the total energy consumption increased by 13%,while 120 h of remediation increased the remediation rate by 6.5%,and the total energy consumption increased by 67%.Compared with citric acid as electrolyte,the remediation rate of the acetic acid group increased by 12%,and the total energy consumption increased by 42%,while the remediation rate of the hydrochloric acid group increased by18%,and the total energy consumption increased by 70.5%.Compared with the conventional remediation method,the total Cd removal rates achieved by the different power-on methods increased by 9% and 31%,respectively,and the total energy consumption decreased by 58% and 45%,respectively.[Conclusions]The electrokinetic remediation technology has certain advantage in remediating Cd-contaminated soil.
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| 篇名 | Study on Electrokinetic Remediation of Cadmium-contaminated Soil | ||
| 来源期刊 | 农业生物技术:英文版 | 学科 | 地球科学 |
| 关键词 | Voltage GRADIENT ELECTROLYTE type INTERMITTENT ENERGIZATION Removal rate Enerey consumption | ||
| 年，卷（期） | 2020,（2） | 所属期刊栏目 | |
| 研究方向 | 页码范围 | 82-85 | |
| 页数 | 4页 | 分类号 | X53 |
| 字数 | 语种 | ||
| DOI | |||
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Voltage
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ELECTROLYTE
type
INTERMITTENT
ENERGIZATION
Removal
rate
Enerey
consumption
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农业生物技术：英文版
主办单位：
吴楚(美中)科技文化传媒公司
出版周期：
双月刊
ISSN：
2164-4993
CN：
开本：
出版地：
合肥市农科南路40号省农科院老水产所30
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出版文献量（篇）
766
总下载数（次）
7
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0
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