Dynamics of Cd, Cu and Pb added to soil through different kinds of sewage sludge

Torri, Silvana Irene; Lavado, Raúl S.

doi:10.1016/j.wasman.2007.01.020

Cited by 41 publications

(26 citation statements)

References 55 publications

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“…Some shortcomings have been distinguished: limited selectivity of the extractants, redistribution of elements among phases during extraction and limited comparability of data obtained by several investigators. Thus, in general, the accuracy of these procedures could be hampered due to overlay between fractions; nevertheless, they are considered to be useful and are actively applied in different soils and conditions (Rao et al, 2008;Torri and Lavado, 2008;Orroño and Lavado, 2009;Kabala et al, 2011;Garrido and Helmhart, 2012;Singani and Ahmadi, 2012). The successive steps are often assumed to remove the pollutant associated with a given soil component or fraction; however, due to the lack of complete knowledge of the soil composition, it is more appropriate to relate the fractions to the reactants employed giving an operational definition (Rao et al, 2008;Kabala et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Time evolution of Pb(II) speciation in Pampa soil fractions

Ferreyroa

Montenegro

Tudino

et al. 2014

Chemical Speciation & Bioavailability

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Soil pollution by heavy metals, particularly lead, is an important environmental concern; the bioavailability of such pollutants is strongly dependent on their chemical form. Here, the speciation of Pb(II) in soil fractions as a function of time shortly after its incorporation is studied, using a selective sequential extraction method. The sample came from an Argentinean Pampas region and was extensively characterised, including Rietveld analysis of the silt+clay fraction XRD pattern to find the major mineral components. Experiments were run twice, once in the winter and once in the summer. The results show different speciation time profiles in both cases, showing faster changes in winter due to the higher water content. The summer experiment corresponds to an earlier stage in the speciation profile evolution compared with winter. The soluble/ exchangeable fraction decreases with time in summer but shows a lower and constant value in the winter. A high proportion is found to be adsorbed onto the stable (aluminosilicates+quartz) mineral fraction. The results strongly suggest that, even at a short time following soil pollution with Pb, a high proportion is adsorbed onto the mineral fraction, with only a low fraction being bioavailable. The most stable (mineral incorporated) form is observed to increase with time. Soil water content appears to be more important than temperature in determining the differences between the two.

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Section: Introductionmentioning

confidence: 99%

Time evolution of Pb(II) speciation in Pampa soil fractions

Ferreyroa

Montenegro

Tudino

et al. 2014

Chemical Speciation & Bioavailability

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“…The application of sewage sludge in agriculture is generally considered the best option of management, because it offers the possibility of recycling plant nutrients, provides organic material to the soil, and improves the soil's aggregate stability, porosity and water infiltration rate (Torri and Lavado 2008). However, the presence of high concentrations of toxic metals in sludge poses a constraint on the application of this sludge's to the agricultural land.…”

Section: Introductionmentioning

confidence: 99%

Effect of soil amendments on phytoextraction potential of Brassica juncea growing on sewage sludge

Dede

Özdemir

Dede

2012

Int. J. Environ. Sci. Technol.

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A pot experiment was conducted to investigate the influence of elemental sulfur, gypsum and chelating agent (Ethylenediaminetetraacetic acid) on copper, zinc, nickel, cadmium, chromium and lead uptake by Brassica juncea from sewage sludge. Addition of sulphur acidified the sludge, which caused the pH decrease to 5.4 with an initial pH 6.7. The shoot and root biomass were increased with sulfur addition, while decreased with Ethylenediaminetetraacetic acid addition. Applications of Ethylenediaminetetraacetic acid and sulfur resulted in a considerable increase in copper and lead concentrations in the plant. The highest root concentration of copper obtained to be 110 mg/kg dw at Ethylenediaminetetraacetic acid treatment. For sulfur treatment, lead concentrations in shoots indicated almost high concentrations 77 mg/kg, about twofold increases relative to roots (34 mg/kg). The Transportation Index of all studied metals were quite low (TI \ 0.5), whereas the Bioaccumulation Factor values were much higher, varied from 0.01 to 9.67. Furthermore, the plant showed better Bioaccumulation Factor for copper and lead metals in both shoot and root. The efficiency to remove copper and lead from sludge is high in this plant. As a result, elemental sulfur will be effective amendment for phytoextraction of heavy metals from sewage sludge.

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“…In soil columns, since they are open systems, the unbalanced conditions are more closely related to natural conditions, where the desorbed species are removed and the reverse reactions are much less probable to occur. Based on the results of the Pb leaching experiment, which is more closely related to the field conditions, special attention must be given to the agricultural areas that receive large quantities of vinasse and are also exposed to contamination with Pb; for example: through the use of phosphate fertilizers (Campos et al, 2005) with sewage sludge or biosolids of urban and industrial origins (Silveira et al, 2003;Borges and Coutinho, 2004;Oliveira et al, 2005;Silva et al, 2006;Torri and Lavado, 2008;Galdos et al, 2009). This can happen where sewage sludge is used as a source of N and vinasse is used as a source of K as may occurs in sugarcane crops (Franco et al, 2008).…”

Section: Comparison Of the Results Between Batch And Leaching Experimmentioning

confidence: 99%

“…Some of the effects of the vinasse on physical, chemical and biological attributes of soil were studied by Camargo et al (1983), Leal et al (1983), Neves et al (1983), Mattiazzo and Glória (1987), Sengik et al (1988), Franco et al (2008) and Doelsch et al (2009) Pb can be present in soil due to weathering processes, mining and smelting activities (Kabata-Pendias and Pendias, 2000;Sharma and Dubey, 2005), and also by the agricultural use of phosphate fertilizers, sewage sludge or biosolids (Silveira et al, 2003;Borges and Coutinho, 2004;Oliveira et al, 2005;Campos et al, 2005;Silva et al, 2006;Camilotti et al, 2007;Torri and Lavado, 2008;Galdos et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Lead sorption and leaching from an Inceptisol sample amended with sugarcane vinasse

Ribeiro

Lima²,

Guilherme³

et al. 2010

Sci. agric. (Piracicaba, Braz.)

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Vinasse is produced at high amounts by the ethanol and sugarcane spirits industries. Although the effects of vinasse on soil attributes are well elucidated, little is known about its effects on sorption and leaching of lead (Pb) from soils. This work evaluated the Pb sorption and leaching from disturbed topsoil samples (0-20 cm) of an Inceptisol, under the influence of sugarcane vinasse. Pb sorption was evaluated by batch sorption method, using air-dried samples (< 2 mm) treated with pure (100%), and diluted (20%, and 50%) vinasse. The amended soil samples were further reacted with 0.05; 0.10; 0.25; 0.50, and 0.75 mmol L -1 of Pb. To measure the Pb leached, soil columns were packed in PVC tubes, 12-cm long with 4-cm internal diameter filled with 200 g of treated soil. The vinasse doses applied over the columns corresponded to 0 (control), 150 and 300 m 3 ha -1 . Seven days later, 5 mL of a Pb solution (100 mmol L -1 ) was applied on the columns; they were successively leached and Pb was measured in the leachates. The vinasse increased the maximum sorption capacity and binding energy of Pb with the soil when at equilibrium conditions. However, at non-equilibrium conditions, the vinasse enhanced the Pb leaching. From these results, it is advised that special attention must be given to Pb contaminated areas where vinasse is applied. Key words: sugarcane cultivation, organometallic complexes, organic waste, Pb mobility Sorção e lixiviação de chumbo em amostra de um Cambissolo tratado com vinhaça de cana-de-açúcar RESUMO: A vinhaça é produzida em grandes quantidades pela indústria de etanol e de aguardente (cachaça). Embora os efeitos da vinhaça nos atributos do solo sejam bem conhecidos, pouco se sabe sobre eles no comportamento sortivo de chumbo (Pb). Avaliaram-se a sorção e a lixiviação de Pb em amostras da camada superficial (0-20 cm) de um Cambissolo Háplico Tb Distrófico típico (CXbd) sob influência da vinhaça. Para o ensaio de sorção, as amostras foram peneiradas em malha de 2 mm, tratadas com vinhaça diluída 20% e 50% e ao natural (100%), empregando água destilada nas amostras controle. Em seguida, soluções com 0,05; 0,10; 0,25; 0,50 e 0,75 mmol L -1 de Pb foram adicionadas às amostras de solo. Para o ensaio de lixiviação, foram preparadas colunas de solo em tubos de PVC de 12 cm de altura e 4 cm de diâmetro interno, contendo 200 g de solo. As doses de vinhaça aplicadas sobre as colunas foram correspondentes a 150 e 300 m 3 ha -1 . As colunas foram mantidas incubadas com vinhaça por sete dias. Após esse período, foram aplicados sobre cada coluna 5 mL de uma solução de concentração 100 mmol L -1 de Pb e, posteriormente, realizadas sucessivas lixiviações, coletando-se o percolado para determinação do teor de Pb. A vinhaça aumentou a capacidade máxima de adsorção de Pb e sua energia de ligação com o solo em condições de equilíbrio (ensaio de sorção), mas em condições de não equilíbrio (ensaio de lixiviação em colunas), a vinhaça aumentou a lixiviação de Pb. Com base nesses resultados, atenção especial ...

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Dynamics of Cd, Cu and Pb added to soil through different kinds of sewage sludge

Cited by 41 publications

References 55 publications

Time evolution of Pb(II) speciation in Pampa soil fractions

Time evolution of Pb(II) speciation in Pampa soil fractions

Effect of soil amendments on phytoextraction potential of Brassica juncea growing on sewage sludge

Lead sorption and leaching from an Inceptisol sample amended with sugarcane vinasse

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