کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1058354 | 947115 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The feasibility of decontamination of reduced saline sediments from copper using the electrokinetic process
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
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![عکس صفحه اول مقاله: The feasibility of decontamination of reduced saline sediments from copper using the electrokinetic process The feasibility of decontamination of reduced saline sediments from copper using the electrokinetic process](/preview/png/1058354.png)
چکیده انگلیسی
The remediation of metal contamination in estuarine and reduced sediments is another challenge for the electrokinetic process. Problems result from the complex chemical composition of saline reduced sediments. In the experiments described here copper was added into saline reduced sediments to simulate the natural situation. Two constant voltages were applied across the electrokinetic cell to investigate the effect of an increase in potential difference on the electrokinetic process. Acetic acid at pH 6 and 4 was also added to the cathode in separate experiments to enhance copper removal. The results from this study showed that in the unenhanced experiments most of copper remained in the soil and was unaffected by the electrokinetic process. At the end of unenhanced electrokinetic experiments, the copper concentration was found only to be slightly changed in the anode region. Up to 21% of the copper was found precipitated near the anode when the applied voltage was 10Â V and this increased to 25% when the applied voltage was 7Â V. In the enhanced electrokinetic experiments up to 98% of copper was removed from section 1 and precipitated again in sections 2 and 3. This indicates that a significant amount copper removal from the saline sediments may be achieved by the enhanced electrokinetic process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Management - Volume 88, Issue 4, September 2008, Pages 1611-1618
Journal: Journal of Environmental Management - Volume 88, Issue 4, September 2008, Pages 1611-1618
نویسندگان
Ali Altaee, Roger Smith, Sergey Mikhalovsky,