Electrokinetic remediation of nickel from low permeability soil
Electrokinetic remediation of nickel from low permeability soil using titanium electrodes having inter-electrode spacing of 10 cm was carried out in a cylindrical reactor. The influences of current density, voltage gradient and electrolyte pH were investigated upon removal efficiency for 60 h experi...
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| Format: | Article |
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Electrochemical Science Group
2011
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| _version_ | 1825719310154203136 |
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| author | Saleem, Muhammad Chakrabarti, Mohammed Harun Irfan, M.F. Hajimolana, Sayed Ahmad Hussain, Mohd Azlan Hasan, Diya'uddeen Basheer Daud, Wan Mohd Ashri Wan |
| author_facet | Saleem, Muhammad Chakrabarti, Mohammed Harun Irfan, M.F. Hajimolana, Sayed Ahmad Hussain, Mohd Azlan Hasan, Diya'uddeen Basheer Daud, Wan Mohd Ashri Wan |
| author_sort | Saleem, Muhammad |
| collection | UM |
| description | Electrokinetic remediation of nickel from low permeability soil using titanium electrodes having inter-electrode spacing of 10 cm was carried out in a cylindrical reactor. The influences of current density, voltage gradient and electrolyte pH were investigated upon removal efficiency for 60 h experimental runs. Efficiency improved from 49.3 to 57.2 when the current density was increased from 4.36 mA/cm 2 to 13.1 mA/cm 2. Furthermore, an enhancement in efficiency from 38.5 to 54.3 was observed when voltage gradient increased from 1 V/cm to 2 V/cm (at 13.1 mA/cm 2). Further increase in voltage gradient to 2.5 V/cm improved efficiency during initial runs. However, an overall reduction of 3.2 was observed after 60 h of operation in comparison to that obtained at 2 V/cm. This may be attributed to precipitation and localized accumulation of metallic ions. An inverse relationship between efficiency and electrolyte pH was also observed (at 13.1 mA/cm 2 and 2 V/cm). Although a removal of 74.1 was achieved at pH = 4.5, the system required optimization as the nickel content in treated soil was above the maximum values given in international standards. |
| first_indexed | 2024-03-06T05:17:43Z |
| format | Article |
| id | um.eprints-7012 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:17:43Z |
| publishDate | 2011 |
| publisher | Electrochemical Science Group |
| record_format | dspace |
| spelling | um.eprints-70122021-01-20T07:58:31Z http://eprints.um.edu.my/7012/ Electrokinetic remediation of nickel from low permeability soil Saleem, Muhammad Chakrabarti, Mohammed Harun Irfan, M.F. Hajimolana, Sayed Ahmad Hussain, Mohd Azlan Hasan, Diya'uddeen Basheer Daud, Wan Mohd Ashri Wan TA Engineering (General). Civil engineering (General) TP Chemical technology Electrokinetic remediation of nickel from low permeability soil using titanium electrodes having inter-electrode spacing of 10 cm was carried out in a cylindrical reactor. The influences of current density, voltage gradient and electrolyte pH were investigated upon removal efficiency for 60 h experimental runs. Efficiency improved from 49.3 to 57.2 when the current density was increased from 4.36 mA/cm 2 to 13.1 mA/cm 2. Furthermore, an enhancement in efficiency from 38.5 to 54.3 was observed when voltage gradient increased from 1 V/cm to 2 V/cm (at 13.1 mA/cm 2). Further increase in voltage gradient to 2.5 V/cm improved efficiency during initial runs. However, an overall reduction of 3.2 was observed after 60 h of operation in comparison to that obtained at 2 V/cm. This may be attributed to precipitation and localized accumulation of metallic ions. An inverse relationship between efficiency and electrolyte pH was also observed (at 13.1 mA/cm 2 and 2 V/cm). Although a removal of 74.1 was achieved at pH = 4.5, the system required optimization as the nickel content in treated soil was above the maximum values given in international standards. Electrochemical Science Group 2011 Article PeerReviewed Saleem, Muhammad and Chakrabarti, Mohammed Harun and Irfan, M.F. and Hajimolana, Sayed Ahmad and Hussain, Mohd Azlan and Hasan, Diya'uddeen Basheer and Daud, Wan Mohd Ashri Wan (2011) Electrokinetic remediation of nickel from low permeability soil. International Journal of Electrochemical Science, 6 (9). pp. 4264-4275. ISSN 1452-3981, http://www.electrochemsci.org/papers/vol6/6094264.pdf |
| spellingShingle | TA Engineering (General). Civil engineering (General) TP Chemical technology Saleem, Muhammad Chakrabarti, Mohammed Harun Irfan, M.F. Hajimolana, Sayed Ahmad Hussain, Mohd Azlan Hasan, Diya'uddeen Basheer Daud, Wan Mohd Ashri Wan Electrokinetic remediation of nickel from low permeability soil |
| title | Electrokinetic remediation of nickel from low permeability soil |
| title_full | Electrokinetic remediation of nickel from low permeability soil |
| title_fullStr | Electrokinetic remediation of nickel from low permeability soil |
| title_full_unstemmed | Electrokinetic remediation of nickel from low permeability soil |
| title_short | Electrokinetic remediation of nickel from low permeability soil |
| title_sort | electrokinetic remediation of nickel from low permeability soil |
| topic | TA Engineering (General). Civil engineering (General) TP Chemical technology |
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