EFFECTS OF SEWAGE SLUDGE AND SYNTHETIC CHELATES ON DISTRIBUTION OF SILVER IN CALCAREOUS AND NONCALCAREOUS SOILS

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ESFAHANI MOGHADDAM M.; FOTOVAT A.; HAGHNIA GH.

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Journal: Journal of Water and Soil Science Year:2012 | Volume:16 | Issue:59 Page(s): 117-126

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Title

EFFECTS OF SEWAGE SLUDGE AND SYNTHETIC CHELATES ON DISTRIBUTION OF SILVER IN CALCAREOUS AND NONCALCAREOUS SOILS

Author(s)

ESFAHANI MOGHADDAM M. | FOTOVAT A. | HAGHNIA GH. | Issue Writer Certificate

Keywords

POLLUTIONQ1

SEQUENTIAL EXTRACTIONQ2

SEWAGE SLUDGEQ2

AGQ2

EDTAQ2

Abstract

Silver toxicity and its fate in the environment are currently being debated and are important as challenging research topics. Even though there are several studies on its total content in soils, fractionation of AG especially in calcareous soils has not been investigated. Therefore, to provide fundamental information on the chemical behavior of AG in calcareous and noncalcareous soils, we studied 8-step chemical fractions of AG (i.e., EXCH, CARB, Me-Org, re-MeOx, H2O2-Org, am-MeOx, cr-FeOx, and RES) after 30 and 60 days of incubation in soils amended with AG (0 and 15 mg kg-1), SEWAGE SLUDGE (0 and 20 t ha-1) and EDTA (0 and 0.5%). Experimental results showed that redistribution of AG in spiked noncalcareous soils was EXCH (34%), H2O2-Org (33%) and RES (17%). In calcareous soils, after 30 days, EXCH- and RES-Ag increased but at the end of 60 days H2O2-Org-Ag increased. Based on our data, we could conclude that addition of AG results in an increase of AG mobility in soils but incubation and SEWAGE SLUDGE may have adverse effect on its mobility. In contrast to noncalcareous soil, EDTA in calcareous soil resulted in higher AG mobility. This may have environmental implications in AG polluted calcareous soils.

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APA: Copy

ESFAHANI MOGHADDAM, M., FOTOVAT, A., & HAGHNIA, GH.. (2012). EFFECTS OF SEWAGE SLUDGE AND SYNTHETIC CHELATES ON DISTRIBUTION OF SILVER IN CALCAREOUS AND NONCALCAREOUS SOILS. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 16(59), 117-126. SID. https://sid.ir/paper/14632/en

Vancouver: Copy

ESFAHANI MOGHADDAM M., FOTOVAT A., HAGHNIA GH.. EFFECTS OF SEWAGE SLUDGE AND SYNTHETIC CHELATES ON DISTRIBUTION OF SILVER IN CALCAREOUS AND NONCALCAREOUS SOILS. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2012;16(59):117-126. Available from: https://sid.ir/paper/14632/en

IEEE: Copy

M. ESFAHANI MOGHADDAM, A. FOTOVAT, and GH. HAGHNIA, “EFFECTS OF SEWAGE SLUDGE AND SYNTHETIC CHELATES ON DISTRIBUTION OF SILVER IN CALCAREOUS AND NONCALCAREOUS SOILS,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 16, no. 59, pp. 117–126, 2012, [Online]. Available: https://sid.ir/paper/14632/en

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