The role of compost properties in sorption of heavy metals

Martinho, João; Campos, Bruno; Brás, Isabel; Silva, Elisabete

doi:10.37190/epe150205

Cited by 8 publications

(7 citation statements)

References 4 publications

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“…The cation exchange capacity and degree of organic residue decomposition are significantly correlated according many authors (Harada and Inoko 1980;Martinho et al 2015). Therefore this parameter seems to be a good index of compost maturity and indicates a compost's ability to retain nutrients.…”

Section: Resultsmentioning

confidence: 94%

The dynamics of some physical and physico-chemical properties during composting of municipal solid wastes and biomass of energetic plants

Kałuża-Haładyn

Jamroz

Bekier

2018

Soil Science Annual

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The aim of the research was to analyze the composting process with respect to changes in some physical and physicochemical properties of the organic part of municipal solid waste and willow and hay biomass mixture. The dynamics of changes in cation exchange capacity CEC values in relation to the base value of the initial materials of both tested composts were higher for municipal solid wastes compost (MSWC) compost than for willow biomass compost (WBC). The dynamics of pH changes were similar in the tested types of compost and were rather small during the process of composting, regardless of the type of organic residues and initial reaction. During composting process, the transformation of organic matter and mineral components slows down after reaching a stabilization phase.

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Section: Resultsmentioning

confidence: 94%

The dynamics of some physical and physico-chemical properties during composting of municipal solid wastes and biomass of energetic plants

Kałuża-Haładyn

Jamroz

Bekier

2018

Soil Science Annual

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“…For the WMC, the qe values were 2.18 mg/g for Cu(II) and 2.22 mg/g for Zn(II), achieved with initial concentrations of 6.0 mg/L. Previous studies on metal retention in various composts yielded qe values of 4.7 mg/g using pine bark compost [30], 12 mg/g using municipal garden waste compost [29], and 11.1 mg/g using municipal solid waste compost [44] for Cu(II). Regarding Zn(II), the qe values were 2.6 mg/g using pine bark compost [30], 12 mg/g using municipal garden waste compost [29], and 6.8 mg/g using municipal solid waste compost [44].…”

Section: Analysis Of Surface Structure Distinctiveness In Retention E...mentioning

confidence: 87%

Evaluation of Municipal Waste Compost in Relation to the Environmental Retention of Heavy Metals

Ramísio,

Bento,

Geraldo

et al. 2023

Sustainability

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This study investigates the performance of municipal compost as a heavy metal adsorbent for environmental protection systems. The performed assays test the effects of the pH (2–9) and contact time (5–250 min) on metal retention. To simulate leaching in natural systems, the soluble organic fraction was removed, leading to variations in the surface properties, including a 10% increase in the cation exchange capacity (CEC) and a 242% increase in the BET-specific surface area, accompanied by a small decrease in the surface charge (characterized by a less negative zeta potential values) of the washed municipal compost (WMC). Notably, these variations, which have not been found in previous research, yielded improved retention of Cu(II) and Zn(II) compared to raw municipal compost (RMC), attaining 96% retention for Cu(II) and 97% retention for Zn(II) at a pH of approximately 6.8–7.2 for a contact time of 120 min. The vast availability, cost-effectiveness, and resistance to desorption make municipal compost a viable option in a circular economy context for mitigating metal pollution across various environmental conditions. It is worth noting that this study can serve as a proxy for the expected outcomes in long-term exposure to environmental protection systems, enhancing the practical relevance of using compost for metal retention purposes.

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“…Degradation of organic compounds and synthesis of new connections can significantly alter relations between not only C and N, the content of humic and fulvic acids, but also between total and available forms of trace elements in the composted material. He et al [14] and Martinho et al [15] concluded that the content and speciation of trace elements in composted sewage sludge is a major cause for the negative impact of this material on the environment and health of living organisms.…”

Section: Introductionmentioning

confidence: 99%

Compost Produced with Addition of Sewage Sludge as a Source of Fe and Mn for Plants

Gondek

Mierzwa–Hersztek

Kopeć

et al. 2021

Ecological Chemistry and Engineering S

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Direct application of sewage sludge to soil is controversial due to, among others, its highly variable composition, odour, and risks for health. The obtained composts with the addition of sewage sludge were tested for the contents and availability of manganese and iron. Once composts were applied to the soil, their effect on the content and availability of Mn and Fe in soil and bioaccumulation in the plant were determined. The addition of sewage sludge enriched composts with manganese and iron, but did not increase the content of water-extracted forms of Mn and Fe. The compost with addition of biochar had more organic matter-bound forms of Mn and Fe. Composts amended with sewage sludge had lower effect on the amount of Poa pratensis L. biomass than maize straw compost. The content of Mn and Fe in Poa pratensis L. was in the range permissible for biomass used as fodder. Smaller addition of all composts to the soil significantly increased the content of mobile manganese forms; however, neither the type nor the dose had effect on the content of iron mobile forms. There was no significant differences in the content of organic matter-bound forms of Mn and Fe in soil after the application of composts.

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The role of compost properties in sorption of heavy metals

Cited by 8 publications

References 4 publications

The dynamics of some physical and physico-chemical properties during composting of municipal solid wastes and biomass of energetic plants

The dynamics of some physical and physico-chemical properties during composting of municipal solid wastes and biomass of energetic plants

Evaluation of Municipal Waste Compost in Relation to the Environmental Retention of Heavy Metals

Compost Produced with Addition of Sewage Sludge as a Source of Fe and Mn for Plants

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