Sorption of Lead in Animal Manure Compost: Contributions of Inorganic and Organic Fractions

Katoh, Masahiko; Kitahara, Wataru; Sato, Takeshi

doi:10.1007/s11270-013-1828-2

Cited by 18 publications

(20 citation statements)

References 42 publications

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“…The results obtained indicate that other organic components such as non‐humic organic compounds (likely cellulose and lignin, which are known to act as heavy metal sorbents ) are involved in TM sorption. In addition, the likely presence of metal‐hydroxides physically and/or chemically bound to the compost organic components could contribute substantially to TM adsorption.…”

Section: Resultsmentioning

confidence: 94%

Sorption of Pb, Cu, Cd, and Zn by Municipal Solid Waste Composts: Metal Retention and Desorption Mechanisms

Silvetti

Demurtas

Garau

et al. 2016

CLEAN Soil Air Water

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In this study, the ability of two municipal solid waste composts to adsorb Pb, Cu, Cd, and Zn ions (Me(II)) from aqueous solutions was investigated. Sorption experiments, carried out at pH 4.5 to simulate acidic Me(II)‐polluted environments, showed for both composts higher affinity for Pb (∼0.45 mmol g−1) and Cu (∼0.31 mmol g−1) compared to Cd (∼0.25 mmol g−1) and Zn (∼0.10 mmol g−1). The sorption isotherms data fitted the Freundlich model better than the Langmuir in both composts, suggesting the presence of heterogeneous Me(II) adsorption sites. The humic acids (HA) extracted from composts contributed to 16, 23, 17, and 20% in the sorption of Pb, Cu, Cd, and Zn, respectively, while the compost water‐soluble‐fractions hardly affected the sorption/precipitation of the Me(II) (<5%). The Fourier transform infrared (FT‐IR) spectra of the different Me(II)–HA systems also indicated that the carboxylate groups of HA mainly interacted with Pb(II) and Cu(II) by forming monodentate and bidentate complexes, respectively. The sequential extraction data showed that a significant amount of Cd and Zn was retained by composts through electrostatic interactions (>65% of the respective total amounts sorbed) while most of Cu and Pb (40 and 54%) was strongly complexed and/or precipitated. The treatment of the Me(II)‐composts with citric and malic acids favored the release of >78 and 48% of Zn, 65 and 30% of Cu, and 40 and 30% of Cd, sorbed by both composts, respectively. This release was lower for Pb (<20%) as the cation more strongly retained by the organic or inorganic components of composts.

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Section: Resultsmentioning

confidence: 94%

Sorption of Pb, Cu, Cd, and Zn by Municipal Solid Waste Composts: Metal Retention and Desorption Mechanisms

Silvetti

Demurtas

Garau

et al. 2016

CLEAN Soil Air Water

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“…Commercial swine and cattle manure composts were used herein to obtain the inorganic and acid-insoluble organic fractions, respectively. We selected these composts since each fraction of the compost can immobilize lead more effectively than other composts [24]. The fractionation followed the method described by Katoh et al [24].…”

Section: Preparation Of Animal Manurementioning

confidence: 99%

“…Phosphorus, sulfate, and iron in the inorganic component and humic substances in the organic component in AMC seem to be the sources responsible for the reaction with lead [10,18,[21][22][23]. Katoh et al [24] applied a specific method for the fractionation of the inorganic and acid-insoluble organic components from AMC to elucidate their separate contributions to lead immobilization. They indicated that the inorganic component in AMC could immobilize lead more effectively than its organic components [24].…”

Section: Introductionmentioning

confidence: 99%

“…Katoh et al [24] applied a specific method for the fractionation of the inorganic and acid-insoluble organic components from AMC to elucidate their separate contributions to lead immobilization. They indicated that the inorganic component in AMC could immobilize lead more effectively than its organic components [24]. These results imply that the inorganic component in AMC has a crucial role in lead immobilization, and AMC with a higher inorganic content is more suitable.…”

Section: Introductionmentioning

confidence: 99%

“…The inorganic fraction was derived from swine manure compost and the acid-insoluble organic fraction was derived from cattle manure compost. These fractions can immobilize lead more effectively than other AMCs owing to the high content of phosphorus and mature organic matter in the inorganic and acid-insoluble organic fractions, respectively [24]. We aimed to identify how the ratio of inorganicto-organic components in AMC affected the mobility and bioavailability of lead, lead phase, and microbial activity.…”

Section: Introductionmentioning

confidence: 99%

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Role of Inorganic and Organic Fractions in Animal Manure Compost in Lead Immobilization and Microbial Activity in Soil

Katoh

Kitahara²,

Sato³

2016

Applied and Environmental Soil Science

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This study aimed to identify how the ratio of inorganic-to-organic components in animal manure compost (AMC) affected both lead immobilization and microbial activity in lead-contaminated soil. When AMC containing 50% or more inorganic fraction with high phosphorous content was applied to contaminated soil, the amounts of water-soluble lead in it were suppressed by over 88% from the values in the soil without compost. The residual fraction under sequential extraction increased with the inorganic fraction in the AMC; however, in those AMCs, the levels of microbial enzyme activity were the same or less than those in the control soil. The application of AMC containing 25% inorganic fraction could alter the lead phases to be more insoluble while improving microbial enzyme activities; however, no suppression of the level of water-soluble lead existed during the first 30 days. These results indicate that compost containing an inorganic component of 50% or more with high phosphorus content is suitable for immobilizing lead; however, in the case where low precipitation is expected for a month, AMC containing 25% inorganic component could be used to both immobilize lead and restore microbial activity.

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Soil Metal Contamination and Its Mitigation

Haroon

Irshad

Ebadi

et al. 2022

Sustainable Plant Nutrition in a Changing World

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Sorption of Lead in Animal Manure Compost: Contributions of Inorganic and Organic Fractions

Cited by 18 publications

References 42 publications

Sorption of Pb, Cu, Cd, and Zn by Municipal Solid Waste Composts: Metal Retention and Desorption Mechanisms

Sorption of Pb, Cu, Cd, and Zn by Municipal Solid Waste Composts: Metal Retention and Desorption Mechanisms

Role of Inorganic and Organic Fractions in Animal Manure Compost in Lead Immobilization and Microbial Activity in Soil

Soil Metal Contamination and Its Mitigation

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