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.

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

Distribution of Chemical Fractions of Heavy Metals in Sewage Sludge: A Review

2013 ◽  
Vol 448-453 ◽  
pp. 724-729
Author(s):  
Xiao Hui Wu ◽  
Jun Zhang
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Sewage Sludge ◽  
Chemical Speciation ◽  
Environmental Behavior ◽  
Land Application ◽  
Specific Chemical ◽  
Efficient Treatment ◽  
Chemical Fraction ◽  
Chemical Fractions

overmuch heavy metal is one major restrictive factor for land application of sewage sludge. The environmental behavior of heavy metals depends strongly on their specific chemical fraction or binding state in sludge. The present paper gives an overview of recent researches about the chemical speciation of heavy metals in sludge. A detailed discussion was also made on the various problems associated with the distribution of chemical fractions of heavy metals in sewage sludge, which need to be addressed while exploring more efficient treatment of removing heavy metal.

scholarly journals Heavy Metals Behavior in Soil/Plant System after Sewage Sludge Application

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1584
Author(s):  
Urszula Wydro ◽  
Agata Jabłońska-Trypuć ◽  
Eliza Hawrylik ◽  
Andrzej Butarewicz ◽  
Joanna Rodziewicz ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Sewage Sludge ◽  
Catalase Activity ◽  
Urban Soil ◽  
Total Content ◽  
Soil Phytoremediation ◽  
Sludge Application ◽  
Soluble Fractions

One of the possibilities of removing heavy metals (HMs) from soil is the use of phytoremediation techniques supported with biosolids, which also allow for their disposal. Therefore, the objective of the research was the determination of the sewage sludge suitability after its application to urban soil in order to increase the phytoremediation efficiency of contaminated soil. A field experiment was established on lawns in Białystok (Poland) in two locations with different traffic. The research plots were fertilized with sludge in doses of 14.5 t DM/ha and 29 t DM/ha. A mixture of lawn grasses was sown on the prepared plots. During two years of experiment soil/plant samples were collected, and pH, organic matter, dehydrogenase and catalase activity (soil), the total content of Cd, Cr, Cu, Mo, Ni, Pb, Zn, and Hg (soil/plant), and their fractions (soil) were determined. The HMs in soil were present mainly in residual and reducible fractions. Zn had the highest share in acid-soluble fractions (17–45%). The efficiency of urban soil phytoremediation was determined by the calculation of bioconcentration (BCF) and translocation (TF) factors. The highest values for BCF and TF were obtained for Mo (1.97 and 1.99, respectively). In the presented study, sludge amendment caused an immobilization of heavy metals.

scholarly journals Fractions of heavy metals in soil after the application of municipal sewage sludge, peat, and furnace ash / Frakcje metali ciężkich w glebie po zastosowaniu komunalnego osadu ściekowego, popiołu paleniskowego i torfu

2014 ◽  
Vol 65 (3) ◽  
pp. 118-125 ◽  
Author(s):  
Jacek Antonkiewicz ◽  
Robert Pełka
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Total Content ◽  
Municipal Sewage ◽  
Residual Fraction ◽  
Municipal Sewage Sludge ◽  
Organic C ◽  
Sewage Sludge Ash ◽  
Lead And Cadmium ◽  
Sludge Ash

Abstract The effect of addition of different materials, i.e. sludge, ash and peat, as well as different doses of mixtures of ash and sludge and ash peat, on the total content of heavy metals (Cr, Zn, Pb, Cu, Cd, Ni) and their fractions was studied. Application of municipal sewage sludge, ash-sludge and ash-peat mixtures in the experiment caused a gradual increase in the content of studied heavy metals in soil. The ash was characterized by a low content of heavy metals as compared to municipal sewage sludge. After application of peat and its mixtures with ash a decrease of content of heavy metals was observed, and when the peat was used alone the greatest increase in the organic C content in the substrate could be seen. Distribution of heavy metals in the fractions separated in different combinations shows large variations, depending on the tested metal and the studied variant. Chromium, zinc, lead, and cadmium have been accumulated mainly in the residual fraction (FV), and most of the copper and nickel have been specifically bound with organic matter (FIV). It has been found that the alkaline materials application to the soil decreased the solubility of most heavy metals, which results in a limitation of their uptake by plants. Chromium and copper were an exception, since their solubility increased with the alkalinity of the substrate. An exception was chromium and copper, which solubility increased with the alkalinity of the substrate.

Recycling mineral nutrients to farmland via compost application

2006 ◽  
Vol 53 (2) ◽  
pp. 111-118 ◽  
Author(s):  
Y.Y. Liu ◽  
M. Ukita ◽  
T. Imai ◽  
T. Higuchi
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Plant Uptake ◽  
Nutrient Deficiency ◽  
Mineral Nutrients ◽  
Heavy Metal Accumulation ◽  
Municipal Solid Wastes ◽  
Amended Soils ◽  
Compost Application ◽  
Chemical Conditions

Increased cultivation of farmland has resulted in nutrient deficiency and consequently fertility degradation of soils. This research examined the application of composted wastes in terms of the feasibility and effectiveness of recycling plant essential minerals. Minerals in composts (derived from sewage sludge, livestock excrement, and municipal solid wastes, respectively) and in amended soils were observed. Ca/Mg ratios in amended soils and the effect of compost applications (mineral nutrients and heavy metals) on plant uptake were also studied. Results showed that composts, especially those made from sewage sludge and livestock excrement, were richer in mineral nutrients but also contained more heavy metals than untreated soil. The increase in some elements and plant-growth-essential Ca/Mg ratios were found in amended farmlands, implying that compost applications have made up for the nutrient deficiency and have adjusted chemical conditions of the soil. The soil contamination from heavy metals was noticeable. However, some results showed that the large existence of mineral nutrients and heavy metals in soils has caused no significant increase in the plant uptake of elements. The controlled composting process and farmland uses are believed necessary for reducing the heavy metal accumulation in agricultural plants.

The behaviour of heavy metals in sewage sludge-amended soils

1991 ◽  
Vol 100 ◽  
pp. 151-176 ◽  
Author(s):  
Brian J. Alloway ◽  
Andrew P. Jackson
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Amended Soils
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