Evolution of Available Heavy Metals in Soils Amended with Sewage Sludge Cocompost

2012 ◽  
Vol 20 (2) ◽  
pp. 105-119 ◽  
Author(s):  
G. Delgado ◽  
V. Aranda ◽  
A.L. Pérez-Lomas ◽  
J.M. Martín-García ◽  
J. Calero ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Heavy Metals In Soils

scholarly journals Bioavailability of heavy metals in soils amended with sewage sludge

2002 ◽  
Vol 82 (4) ◽  
pp. 433-438 ◽  
Author(s):  
M T Morera ◽  
J. Echeverría ◽  
J. Garrido
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Agricultural Land ◽  
Organic Matter Content ◽  
Dry Weight ◽  
Matter Content ◽  
Alkaline Soils ◽  
Toxic Heavy Metals ◽  
Heavy Metals Bioavailability ◽  
Heavy Metals In Soils

The recycling of sewage sludge to agricultural land results in the slow accumulation of potentially toxic heavy metals in soils. A greenhouse experiment was conducted to determine the bioavailability of Cu, Ni, Pb and Zn applied to soils in urban anaerobically stabilized sewage sludge. The soils were Lithic Haplumbrept (Lh), Calcixerollic Xerochrept (Cx1 and Cx2) and Paralithic Xerorthent (Px). Sunflower plants (Helianthus annuus L) were grown in the soils following amendment with the sludge. The addition of sewage sludge markedly increased the average dry weight of the plants in the soils that had lower yields without sludge addition (Lh, Cx2, and Px). The acid pH of the Lh soil favoured the bioavailability of Zn from sewage sludge. The bioavailability of Cu was greater in the alkaline soils than in the acidic soil (Lh), which can be attributed to the high organic matter content of the Lh soil which complexes Cu and impairs its uptake by the plants. The concentration of metals in the plants increased with the sewage sludge dose. The effect of the soil type on the metal concentration in plants was greater that the effect of the dose. Key words: Soils, sewage sludge, heavy metals, bioavailability, sunflower

scholarly journals Leaching of Heavy Metals in Soils Conditioned with Biosolids from Sewage Sludge

2019 ◽  
Vol 26 (spe1) ◽  
Author(s):  
Thaís Campos ◽  
Guilherme Chaer ◽  
Paulo dos Santos Leles ◽  
Marcelo Silva ◽  
Felipe Santos
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Heavy Metals In Soils

scholarly journals CONTENT OF HEAVY METALS IN SOILS OF OIL-POLLUTED AREAS OF PRE-CARPATHIAN

2021 ◽  
pp. 83-88
Author(s):  
V. Lopushnyak ◽  
H. Hrytsulyak ◽  
O. Tonkha ◽  
O. Menshov ◽  
O. Pikovsʹka ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Heavy Metal Contamination ◽  
Petroleum Products ◽  
Podzolic Soils ◽  
Mobile Forms ◽  
Test Soil ◽  
Contamination Of Soils ◽  
Lead Nickel ◽  
Heavy Metals In Soils

The article highlights the results of research on the content of heavy metals in sod-podzolic soils of oil-contaminated areas of Ivano-Frankivsk region. Contamination of soils with petroleum products causes severe ecological consequences for ecosystems. The aim of the research was to study the peculiarities of the accumulation of heavy metals in the soil, underground part and vegetative mass of sylphia perforated in the conditions of cultivation in oil-contaminated areas. The content of mobile forms of heavy metals in soils did not exceed the norms in all variants of the experiment. During the cultivation of Sylphia perfoliatum, it grew in a number: cadmium → nickel → cobalt → lead. The concentration of heavy metals in the soil was determined, which reflects the change in the content of the element in the test soil relative to the content of metals in the background soil. The coefficients of concentration of mobile forms of heavy metals in oil-contaminated soil for the cultivation of perforated sylphia for the application of fertilizers based on sewage sludge and compost based on them increased in a number: cobalt → lead → nickel → cadmium. Peculiarities of heavy metals accumulation in the vegetative mass of perforated sylphia have been established. Indices of intra-tissue heavy metal contamination of the root system of sylphia perforated with the introduction of sewage sludge increase in the following series: cadmium → nickel → lead → cobalt. The maximum indices of contamination of sylphia roots permeated with cadmium, nickel and cobalt are observed for the introduction into the soil of ERUs at a rate of 40 t / ha and N10P14K58, lead – for the application of compost at a rate of 30 t/ha and N30K55. The lowest indices of intratissue contamination with heavy metals of the roots of sylphia perfoliatum were noted for the application of fertilizer N60P60K60.

scholarly journals Mobility of heavy metals in soils amended with sewage sludge

2001 ◽  
Vol 81 (4) ◽  
pp. 405-414 ◽  
Author(s):  
M T Morera ◽  
J C Echeverría ◽  
J J Garrido
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Metal Content ◽  
Arable Land ◽  
Extraction Procedure ◽  
Soil Samples ◽  
Urban Sewage ◽  
Low Concentrations ◽  
Urban Sewage Sludge ◽  
Heavy Metals In Soils

Sewage sludges added to arable land can improve soil fertility and physical properties. However, the concentrations of heavy metals commonly found in sludges limits their application to soil. The purpose of this paper is to evaluate the mobility of heavy metals (Cd, Cu, Ni, Pb and Zn) in four soils amended with different rates (0, 80, 60 and 320 t ha–1) of anaerobically stabilized urban sewage sludge. Total metal content in the sewage sludge was Zn >> Cu > Pb > Ni >> Cd. Sludge, soils and sludge-soil mixtures were fractionated by the Tessier sequential extraction procedure. The fractions extracted by H2O2/HNO3 and NH2OH.HCl were the most abundant pools for metals under study. The apparent mobility of metals in the sludge was Zn ≈ Cd ≈ Ni > Pb > Cu. The addition of sewage sludge in soils increased the percentages of metal extracted in non-residual fractions. ANOVA showed that the most significant increases were those of Zn, followed by Cu and Pb; there were no statistical differences (P < 0.05) for Ni and Cd. Exchangeable Zn from sludge was immobilized in basic soils. The other trace metals showed no fraction redistribution. The soils and sludge-treated soil samples were also extracted with EDTA and DTPA. Extraction with EDTA was more sensitive to soil type, whereas extraction with DTPA showed wider variation with metals. Both chelates seemed to be more effective to assess the mobility of metals added with the sludges at low concentrations than the Tessier’s chemical partitioning. Key words: Soils, sewage sludge, heavy metals, mobility

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