Impacts of weathering and clay mineralogy on heavy metals sorption in sludge-amended soils

CATENA ◽  
2013 ◽  
Vol 101 ◽  
pp. 188-196 ◽  
Author(s):  
D. Proust ◽  
C. Fontaine ◽  
N. Dauger
Keyword(s):  
Heavy Metals ◽  
Clay Mineralogy ◽  
Amended Soils

Heavy Metals in Sewage Sludge-Amended Soils

2004 ◽  
Author(s):  
Edmundo Robledo S. ◽  
Joel Pineda P. ◽  
Ranferi Maldonado T. ◽  
Esteban Martínez V. ◽  
Edna Álvarez S. ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Amended Soils

Heavy metals in sewage sludge amended soils determined by sequential extractions as a function of incubation time of soils

Geoderma ◽  
2007 ◽  
Vol 142 (3-4) ◽  
pp. 262-273 ◽  
Author(s):  
M.J. Sánchez-Martín ◽  
M. García-Delgado ◽  
L.F. Lorenzo ◽  
M.S. Rodríguez-Cruz ◽  
M. Arienzo
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Incubation Time ◽  
Sequential Extractions ◽  
Amended Soils

Speciation, Accumulation of Heavy Metals in Vegetation Grown on Sludge Amended Soils and their Transfer to Human Food Chain - A Case Study

2002 ◽  
Vol 82 (1-2) ◽  
pp. 33-43 ◽  
Author(s):  
K. Chandra Sekhar ◽  
K. Rajni Supriya ◽  
C.T. Kamala ◽  
N.S. Chary ◽  
T. Nageswara Rao ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Food Chain ◽  
Amended Soils ◽  
Human Food ◽  
Human Food Chain

Bioavailability of Heavy Metals in Sludge-Amended Soils Ten Years after Treatment

1987 ◽  
pp. 235-259 ◽  
Author(s):  
Charles L. Mulchi ◽  
Paul F. Bell ◽  
Charles Adamu ◽  
Joseph R. Heckman
Keyword(s):  
Heavy Metals ◽  
Amended Soils

Changes on chemical fractions of heavy metals in Chilean soils amended with sewage sludge affected by a thermal impact

Soil Research ◽  
2006 ◽  
Vol 44 (6) ◽  
pp. 619 ◽  
Author(s):  
Mónica Antilén ◽  
Nadia Araya ◽  
Margarita Briceno ◽  
Mauricio Escudey
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Forest Fires ◽  
Total Content ◽  
Thermal Impact ◽  
Amended Soils ◽  
Chemical Fractions ◽  
Heavy Metal Remediation ◽  
Remediation Process ◽  
Significant Increment

Forest fires are frequent in central-southern Chile; high temperatures may affect chemical fractions of heavy metals (Cu, Zn, Ni, Pb, Cd, Mo, Cr, and Mn) naturally present in soils and those coming from sewage sludge amendment. Changes in exchangeable, sorbed, organic, carbonate, and residual heavy metals fractions, evaluated by sequential extraction, were observed after heating at 400°C in 2 amended volcanic soils. Most significant heavy metals in these samples were Cu, Zn, Pb, and Ni. A significant increment in the total content of organic matter and metal ions, such as Zn and Cu, was observed in amended soils with respect to controls. In all samples, sorbed and exchangeable forms represent <10% of the total amount, while organic and carbonate fractions represent 24 and 48%, respectively. The thermal treatment of amended soil samples results in a redistribution of the organic fraction, mainly into more insoluble carbonate and residual fractions such as oxides. Finally, the thermal impact is much more important on sewage sludge amended soils if a heavy metal remediation process is considered, reducing the mobility and solubility of heavy metals supported by sewage sludge, minimising leaching and promoting accumulations in surface horizons.

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