INVESTIGATIONS ON DIFFERENT POSITIONS OF ELECTRODES AND THEIR EFFECTS ON THE DISTRIBUTION OF CR AT THE WATER SEDIMENT INTERFACE

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SHRESTHA R.; SILLANPAA M.; FISCHER R.

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Journal Paper

Paper Information

Journal: INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST) Year:2007 | Volume:4 | Issue:4 (16) Page(s): 413-420

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Title

INVESTIGATIONS ON DIFFERENT POSITIONS OF ELECTRODES AND THEIR EFFECTS ON THE DISTRIBUTION OF CR AT THE WATER SEDIMENT INTERFACE

Author(s)

SHRESTHA R. | SILLANPAA M. | FISCHER R. | Issue Writer Certificate

Keywords

CHROMIUM

ELECTROKINETIC

PH-BARRIER

EH-BARRIER

HEAVY METALS

SEDIMENT

REMEDIATION

Abstract

In most mining areas, significant concentrations of metals such as Pb, Cu, Cr, Zn, Cd, Fe, Mn, Co, Ni, Hg, Ar, halogenated organic compounds and radionuclides are found. Of those, Cr is one of the well-known HEAVY METALS that forms toxic species. It is necessary to study the mobilization and accumulation of Cr at the SEDIMENT water interface in an electric field at varying different positions and conditions of the electrode arrangement.The tests were carried out with a natural SEDIMENT containing HEAVY METALS from the river Weisse Elster (Germany).The ELECTROKINETIC experiments have been performed in columns filled with SEDIMENT using electrodes made of conductive polymers (polyethylene with carbon black) at a maximum current density of 0.5 mA/cm2. The experimental results suggest that the mobilization and accumulation of Cr highly depends on chemical factors for e.g., pH value, redox potential, respectively redox status and the content of Fe, Al and organic matter in the soil or SEDIMENT. The sorption of Cr (III, VI) is very high in the pH range > 4.5. As expected, a high mobilization of Cr (III, VI) was seen in the case of the experiments with the anode at the SEDIMENT, because the pH value was lower than mentioned above. On the opposite, the best conditions for the Cr (III, VI) immobilization is high pH values (cathode at the SEDIMENT).

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References

REMOVAL OF HEXAVALENT CHROMIUM FROM AQUEOUS SOLUTION BY LIGNOCELLULOSIC SOLID WASTES

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APA: Copy

SHRESTHA, R., SILLANPAA, M., & FISCHER, R.. (2007). INVESTIGATIONS ON DIFFERENT POSITIONS OF ELECTRODES AND THEIR EFFECTS ON THE DISTRIBUTION OF CR AT THE WATER SEDIMENT INTERFACE. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), 4(4 (16)), 413-420. SID. https://sid.ir/paper/285060/en

Vancouver: Copy

SHRESTHA R., SILLANPAA M., FISCHER R.. INVESTIGATIONS ON DIFFERENT POSITIONS OF ELECTRODES AND THEIR EFFECTS ON THE DISTRIBUTION OF CR AT THE WATER SEDIMENT INTERFACE. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST)[Internet]. 2007;4(4 (16)):413-420. Available from: https://sid.ir/paper/285060/en

IEEE: Copy

R. SHRESTHA, M. SILLANPAA, and R. FISCHER, “INVESTIGATIONS ON DIFFERENT POSITIONS OF ELECTRODES AND THEIR EFFECTS ON THE DISTRIBUTION OF CR AT THE WATER SEDIMENT INTERFACE,” INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), vol. 4, no. 4 (16), pp. 413–420, 2007, [Online]. Available: https://sid.ir/paper/285060/en

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