Trace Metal Chemistry in Arid‐zone Field Soils Amended with Sewage Sludge: I. Fractionation of Ni, Cu, Zn, Cd, and Pb in Solid Phases

Sposito, Garrison; Lund, L. J.; Chang, Andrew C.

doi:10.2136/sssaj1982.03615995004600020009x

Cited by 651 publications

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“…Sequential extraction: methodology of Sposito et al (1982) al., 2001). As reported by Caldeira Júnior et al (2009), in soils fertilized with biosolid, there is a reduction of pH due to the presence of acid substances and to the processes of nitrification and oxidation of sulfides of this residue.…”

Section: Resultsmentioning

confidence: 99%

“…Sequential extraction was performed according to the methodology of Sposito et al (1982), which extracts metals from the exchangeable fraction, with 0.5 mol L -1 KNO 3 ; from the soluble fraction, with distilled water; from the organic matter fraction, with 0.5 mol L -1 NaOH; from the carbonate fraction, with EDTA (0.05 mol L -1 ); from the sulfide fraction, with 4.0 mol L -1 HNO 3 ; and from the residual fraction, with the acids HF + HNO 3 (p.a.). In plant tissue, total extraction was performed according to the methodology of USEPA-3051 (EPA, 1994).…”

Section: Methodsmentioning

confidence: 99%

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Copper and zinc fractionation in biosolid cultivated with Pennisetum purpureum in different periods

Oliveira

Cardoso

Sousa

et al. 2018

Rev. bras. eng. agríc. ambient.

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A B S T R A C TIn order to reduce the effect of heavy metals on the biosolid, it is necessary to promote its phytoremediation. It is important to know the total content and chemical forms of these elements in the residue for analyzing its behavior and potential toxicity. Thus, the aim of this study was to evaluate the fractionation and behavior of Cu and Zn in biosolid cultivated with Pennisetum purpureum in different periods. The experiment was carried out using a randomized complete block design. The treatments, with five replicates, corresponded to Pennisetum purpureum cultivation in biosolid for 30, 60, 90, 120 and 150 days after planting. The total contents of Cu and Zn in the biosolid remained below the critical limits established by the CONAMA Resolution 357, and there was a reduction in these values with Pennisetum purpureum cultivation. Furthermore, the increment in the grass cultivation period caused intense reduction of Zn contents bound to organic matter, but there was an increase in soluble Zn and residual Zn. Additionally, there was an intense reduction in the content of Cu bound to sulfides. Therefore, for biosolid phytoremediation purposes, the grass should be cultivated for 150 days.Fracionamento de cobre e zinco em biossólido cultivado com Pennisetum purpureum em diferentes períodos R E S U M O Para atenuar o efeito da presença de metais pesados no biossólido, faz-se necessária a sua fitorremediação, sendo fundamental o conhecimento das concentrações totais e das formas químicas destes elementos no resíduo para fins de análise do seu comportamento e potencial toxicidade. Assim, objetivou-se avaliar o comportamento e fracionamento do Cu e Zn em biossólido cultivado com Pennisetum purpureum em diferentes períodos. O experimento foi realizado utilizando-se delineamento em blocos casualizados. Os tratamentos, em cinco repetições, corresponderam ao cultivo de Pennisetum purpureum em biossólido por 30, 60, 90, 120 e 150 dias a partir do plantio. As concentrações totais de Cu e Zn no biossólido ficaram abaixo dos limites críticos da Resolução CONAMA 375, havendo redução destes valores com o cultivo de Pennisetum purpureum. Além disso, o incremento do período de cultivo da gramínea causou intensa redução da concentração de Zn ligado à matéria orgânica; por outro lado, houve aumento do Zn solúvel e residual. Já para o Cu houve intensa redução da concentração do elemento ligado a sulfetos. Assim, para fins de fitorremediação do biossólido, recomenda-se o plantio da gramínea por 150 dias. Key words:sequential extraction sewage sludge speciation of heavy metals Palavras-chave: especiação de metais pesados extração sequencial lodo de esgoto

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Copper and zinc fractionation in biosolid cultivated with Pennisetum purpureum in different periods

Oliveira

Cardoso

Sousa

et al. 2018

Rev. bras. eng. agríc. ambient.

View full text Add to dashboard Cite

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“…The smaller value of organic complexes of Cd [22] is likely the contributing factor preventing Cd from forming stable complexes with organic matter [23]. There is no significant variation in chemical species concentration between the three different soil samples.…”

Section: Cadmium Speciesmentioning

confidence: 99%

Remediation of deltamethrin contaminated cotton fields: residual and adsorption assessment

et al. 2016

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Pakistan occupies a significant global position in the growing of high quality cotton. The extensive application of pesticides on agricultural products leads to environmental risk due to toxic residues in air, water and soil. This study examined the chemodynamic effect of Deltamethrin on cotton fields. Samples were collected from the cotton fields of D.G. Khan, Pakistan and analyzed for heavy metal speciation patterns. Batch experiments were administered in order to study the adsorption of Deltamethrin in cotton fields. The effect of different factors including pH, adsorbate dose, and adsorbent mass on adsorption were studied. It was observed that in general, adsorption increased with increases in the mass of adsorbate, although the trends were irregular. Residual fractions of deltamethrin in the soil and water of cotton fields were analyzed to assess concentrations of xenobiotics bound to soil particles. Results indicated that such residues are significantly higher in soil samples due to high Koc in comparison to water, indicating the former is an efficient degradation agent. Results from the batch experiment resulted in 95% removal with alkaline pH and an adsorbent-adsorbate ratio of 250:1. These results may be used to environment friendly resource management policies.

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“…Particle size distribution, electrical conductivity (EC), pH, organic carbon (OC), equivalent calcium carbonate and cation exchange capacity were determined. Total and available Cu were determined using 4 mol/L HNO 3 (Sposito et al 1982) and DTPA-TEA (Lindsay and Norvell 1978), respectively.…”

Section: Methodsmentioning

confidence: 99%

Copper release kinetics: Effect of two extractants and wheat (Triticum aestivum L.) rhizosphere

Motaghian¹,

Hosseinpur²

2012

PLANT SOIL ENVIRON

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The greenhouse experiment was performed to determine Cu release characteristics in the bulk and the rhizosphere of some calcareous soils using rhizobox. The kinetics of Cu release in the bulk and the rhizosphere soils were determined by successive extraction with diethylenetriaminepentaacetic acid-triethanolamine (DTPA-TEA) and 10 mmol/L citric acid in a period of 1 to 504 h at 25 ± 1°C. The results of kinetics study showed that Cu extracted using DTPA-TEA in the rhizosphere soils was significantly (P < 0.01) lower than the bulk soils, while Cu extracted using citric acid in the rhizosphere soils was significantly (P < 0.01) higher than the bulk soils. The mean of released Cu after 504 h using DTPA-TEA were 8.59 and 7.46 mg/kg in the bulk and the rhizosphere soils, respectively. The mean release of Cu after 504 h using citric acid was 14.73 and 16.05 mg/kg in the bulk and the rhizosphere soils, respectively. Release kinetics of Cu in two extractants conformed fairly well to parabolic diffusion, power function, and first order equations. The results of correlation analysis illustrated that a significant correlation between Cu desorption after 504 h with citric acid and Cu concentration in wheat was found (r = 0.96 and r = 0.90 in the rhizosphere and the bulk soils, respectively, P < 0.01). Therefore, application of 10 mmol/L citric acid extractant would be recommended in the future study on the kinetics of release of Cu in calcareous soils.

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Trace Metal Chemistry in Arid‐zone Field Soils Amended with Sewage Sludge: I. Fractionation of Ni, Cu, Zn, Cd, and Pb in Solid Phases

Cited by 651 publications

References 0 publications

Copper and zinc fractionation in biosolid cultivated with Pennisetum purpureum in different periods

Copper and zinc fractionation in biosolid cultivated with Pennisetum purpureum in different periods

Remediation of deltamethrin contaminated cotton fields: residual and adsorption assessment

Copper release kinetics: Effect of two extractants and wheat (Triticum aestivum L.) rhizosphere

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