EFFECTS OF MOISTURE CONTENT AND VOLTAGE GRADIENT ON THE REMOVAL OF CD, PB AND ZN FROM A CALCAREOUS CONTAMINATED SOIL

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BEYRAMI H.; NEYSHABOURI M.R.; OUSTAN SH.

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Journal: WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE) Year:2010 | Volume:19.1 | Issue:2 Page(s): 177-199

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Title

EFFECTS OF MOISTURE CONTENT AND VOLTAGE GRADIENT ON THE REMOVAL OF CD, PB AND ZN FROM A CALCAREOUS CONTAMINATED SOIL

Author(s)

BEYRAMI H. | NEYSHABOURI M.R. | OUSTAN SH. | Issue Writer Certificate

Keywords

DECONTAMINATIONQ4

ELECTROKINETIC REMEDIATIONQ4

SOIL MOISTUREQ2

VOLTAGE GRADIENTQ4

CDQ4

PBQ4

ZNQ4

Abstract

Electrokinetic removal of heavy metals from the contaminated soils seems an innovative approach for their remediation. This technique may require much less time for the removal particularly in the soil with lower permeability comparing to the conventional leaching methods. In the current study ELECTROKINETIC REMEDIATION of a calcareous soil contaminated by three heavy metals (Zn=1400 mg kg-1, CD=15 mg kg-1 and PB=250 mg kg-1) due to the release of sludge' s from mining industry around Zanjan city north west of Iran, was investigated in disturbed soil columns. Treatments imposed during the experiment were three moisture contents (saturated, FC and 0.7 FC), and two VOLTAGE GRADIENTs (1.3 and 2.66 volts per cm of the column length). Effects of three electrolytes (distilled water, Acetic acid, EDTA), electrolyte circulation and anodes displacement on the removal efficiency were also studied. Experimental data showed that raising VOLTAGE GRADIENT and water content both enhanced ion migration through the column and thus led to considerably grater removal. After 10 days imposing the above VOLTAGE GRADIENT under saturation condition, the removal of CD, ZN and PB achieved to 32.6%, 31.3% and 18.9%, respectively. Reducing water content to 0.7 FC reduced the removal percents to 21%, 18.4% and 12.3%, respectively.The largest removal belonged to CD; with ZN and PB being the second and third in this respect.

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APA: Copy

BEYRAMI, H., NEYSHABOURI, M.R., & OUSTAN, SH.. (2010). EFFECTS OF MOISTURE CONTENT AND VOLTAGE GRADIENT ON THE REMOVAL OF CD, PB AND ZN FROM A CALCAREOUS CONTAMINATED SOIL. WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE), 19.1(2), 177-199. SID. https://sid.ir/paper/147815/en

Vancouver: Copy

BEYRAMI H., NEYSHABOURI M.R., OUSTAN SH.. EFFECTS OF MOISTURE CONTENT AND VOLTAGE GRADIENT ON THE REMOVAL OF CD, PB AND ZN FROM A CALCAREOUS CONTAMINATED SOIL. WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE)[Internet]. 2010;19.1(2):177-199. Available from: https://sid.ir/paper/147815/en

IEEE: Copy

H. BEYRAMI, M.R. NEYSHABOURI, and SH. OUSTAN, “EFFECTS OF MOISTURE CONTENT AND VOLTAGE GRADIENT ON THE REMOVAL OF CD, PB AND ZN FROM A CALCAREOUS CONTAMINATED SOIL,” WATER AND SOIL SCIENCE (AGRICULTURAL SCIENCE), vol. 19.1, no. 2, pp. 177–199, 2010, [Online]. Available: https://sid.ir/paper/147815/en

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