Journal of Applied Electrochemistry

, Volume 40, Issue 6, pp 1123–1130 | Cite as

Effect of processing fluid and initial concentration on electrokinetic removal of environmental hormone—nonylphenol (NP) from soil matrix

Original Paper


This study was aimed to investigate the electrokinetic removal of environmental hormone––nonylphenol (NP)––from soil matrix under potential gradient of 1 V cm−1 for 5-day treatment. The EK experiments were conducted with four processing fluids of de-ionized water, citric acid, NaOH, and methanol in a Pyrex glass cylindrical cell. Results showed that the elcetrokinetic removal efficiency of the above-mentioned processing fluid was 29, 36–38, 43–53, and 53–69%, respectively. It was found that the removal of NP in EK system was highly related to the solubility of NP in processing fluid. Approximate 88.8–94.2% of NP removal was collected in the cathode reservoir after EK treatment, which was 7.9–16.2 times greater than that collected in the anode reservoir. It was concluded that NP was mainly removed from anode to cathode by electroosmosis flow. The electrokinetic phenomenon of current density, electroosmistic permeability, and power consumption were also investigated.


Electrokinetic process Environmental hormone Nonylphenol Processing fluid Soil remediation 



This research was funded by the National Science Council of Taiwan, Grant # NSC96-2211-E-390-007. The authors were grateful to the reviewers for their valuable comments.


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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.Department of Safety, Health and Environmental EngineeringNational First University of Science and TechnologyKaohsiungTaiwan, ROC
  2. 2.Department of Civil and Environmental EngineeringNational University of KaohsiungKaohsiung CityTaiwan

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