An attempt to electrically enhance phytoremediation of arsenic contaminated water
Type
ArticleKAUST Grant Number
KUK-C1-017-12Date
2012-04Permanent link to this record
http://hdl.handle.net/10754/597513
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Water polluted with arsenic presents a challenge for remediation. A combination of phyto- and electro-remediation was attempted in this study. Four tanks were setup in order to assess the arsenic removal ability of the two methods separately and in combination. Lemna minor was chosen for As remediation and collected from a ditch in Utrecht, The Netherlands. The tanks were filled with surface water without any pre-cleaning, therefore containing various elements including metals as Mn (2.9mgL -1), Cu (0.05mgL -1), Fe (1.39mgL -1), and Ba (0.13mgL -1). This water was then spiked with As and allocated to a feed container, guaranteeing a continuous flow of 0.12mLs -1 to each tank. Two experiments were performed: Exp. 1 with 3 consecutive stages with rising applied voltage and Exp. 2, with a constant voltage over a period of 6d. Measurements of pH and temperature were taken every working day, as well as water samples from outlets of all tanks including feed container for control. From the present study, there was no evidence that As had been taken up by the plants, but a strong depletion of As was observed in the tanks where current was applied. Preliminary results clearly showed that applying voltage to the electrodes caused 90% removal of As from the spiked surface water. © 2012 .Citation
Kubiak JJ, Khankhane PJ, Kleingeld PJ, Lima AT (2012) An attempt to electrically enhance phytoremediation of arsenic contaminated water. Chemosphere 87: 259–264. Available: http://dx.doi.org/10.1016/j.chemosphere.2011.12.048.Sponsors
Authors Jan Kubiak and Premraj Khankhane have contributed equally to accomplishment of this research. We would like to thank The Indian Council of Agricultural Research (ICAR), New Delhi for supporting the author under National Agricultural Innovative Project to undertake research in the Lab of Prof. S. M. Hassanizadeh in Bioremediation at Earth Science Laboratory, Department of Earth Science, Utrecht University, The Netherlands. Prof. Majid S. Hassanizadeh is greatly acknowledged for providing this collaboration. The authors also would like to kindly thank Tom Bosma, Dineke van de Meent-Olieman, Tilly Bouten from the Department of Earth Science, Utrecht University, The Netherlands for their involvement, time, and help. A.T. Lima partially supported by Award No KUK-C1-017-12, made by King Abdullah University of Science and Technology (KAUST).Publisher
Elsevier BVJournal
ChemospherePubMed ID
22300556ae974a485f413a2113503eed53cd6c53
10.1016/j.chemosphere.2011.12.048
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