Metal-contaminated soil remediation by means of paper mill sludges addition: chemical and ecotoxicological evaluation

Calace, N.; Campisi, Tiziana; Iacondini, Antonella; Leoni, Maurizio; Petronio, B.M.; Pietroletti, Marco

doi:10.1016/j.envpol.2004.12.014

Cited by 67 publications

(38 citation statements)

References 19 publications

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“…The cardboard mill sludge exhibits good sorption properties signifi cantly reducing its leacheability compared to the untreated sample. This is in agreement with the literature data for soil remediation [4,6].…”

Section: Leaching Tests: Ans 161 Tclp and Wetsupporting

confidence: 82%

“…Organic matter is able to form stable complexes with several metals; the silicates are materials of high cation exchange capacity (CEC) and the bicarbonate/ carbonate system is able to increase the pH value of soil. These chemical features were able to reduce the harmful mobile metals in polluted soils when the paper mill sludge was added to them [6].…”

Section: Introductionmentioning

confidence: 99%

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Immobilization of Cadmium from Contaminated Sediment Using Cardboard Mill Sludge

Prica¹,

Dalmacija²,

Dalmacija³

et al. 2012

Archives of Environmental Protection

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Abstract:Sludge from cardboard mill is most commonly landfi lled, but it could also be recycled on-site into production or reused in some other way. In this study the use of sludge from cardboard mill as stabilizing agent in the stabilization treatment of cadmium polluted sediment was examined. The effectiveness of treatment and long-term leaching behavior of cadmium was evaluated by determining the cumulative percentage of cadmium leached, diffusion coeffi cients (De) and by applying different leaching tests (semi-dynamic test, toxicity characteristic leaching procedure, waste extraction test). In order to simulate the "worst case" leaching conditions, the semi-dynamic leaching test was modifi ed using 0.014 M acetic acid (pH = 3.25) and humic acids solution (20 mg l -1 TOC) as leachants instead of deionized water. A diffusion-based model was used to elucidate the controlling leaching mechanisms. Applied treatment was effective in immobilizing cadmium irrespective of high availability in the untreated sample. The controlling leaching mechanism appeared to be diffusion, which indicates that a slow leaching of cadmium could be expected when the cardboard mill sludge as stabilization agent is applied.

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Section: Leaching Tests: Ans 161 Tclp and Wetsupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Immobilization of Cadmium from Contaminated Sediment Using Cardboard Mill Sludge

Prica¹,

Dalmacija²,

Dalmacija³

et al. 2012

Archives of Environmental Protection

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show abstract

“…In situ chemical immobilization is a cost-effective remediation approach that stabilizes HM in contaminated soil [15,16]. Generally, these technologies reduce HM availability, improve soil fertility, and increase plant growth [17,18]. On one hand, organic amendments (compost) contain a high proportion of humified organic matter and could decrease HM bioavailability in soil, even though temporally and thus permitting the reestablishment of vegetation [19].…”

Section: Introductionmentioning

confidence: 99%

Comparative Use of Soil Organic and Inorganic Amendments in Heavy Metals Stabilization

Branzini

Zubillaga

2012

Applied and Environmental Soil Science

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Remediation strategies are capable to mitigate negative effects of heavy metals (HMs) on soils. The distribution of cooper (Cu), zinc (Zn), and chromium (Cr) was evaluated in a contaminated soil after adding biosolid compost (BC) and phosphate fertilizer (PF). A greenhouse assay and sequential extraction procedure were performed to determine the fractionation of HM in contaminated and remediated soil. In BC treatment, among 4 to 6% of Cu was associated with soil humic substances. Without amendments and with fertilizer application, Zn solubility increased by 15.4 and 8.4%, respectively, with experiment time. Although Cr was significantly adsorbed to the inorganic fraction, with compost application there was a transfer to organic fraction. A single amendment application is not suitable for immobilizing all metals of concern, because there are diverse union's behaviors between HM and soil matrix. As the organic matter and phosphate fertilizer were effective in reducing mobility of Cu, the organic matter was more effective in the immobilization of Cr, and inorganic amendment induced the Zn precipitation, results from this pilot study suggest a combined use of these two amendments for soil remediation strategies. However, liming may be further needed to prevent soil acidification on longer time scales. Also, we propose the use of chemical and biological remediation strategies for potential improvement of effectiveness.

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“…For example, paper mill sludge, an industrial by-product mainly composed of carbonates, silicates and organic matter, has lower intrinsic ecotoxicity than sewage sludge and was observed to be very efficient in decreasing dissolved concentrations of trace elements (Cu, Pb, Zn, Ni and Cd) and their uptake by plants [169][170][171].…”

Section: Biodegradable Wastementioning

confidence: 99%

Trace Element Immobilization in Soil Using Amendments

Kumpienė

2010

Trace Elements in Soils

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Metal-contaminated soil remediation by means of paper mill sludges addition: chemical and ecotoxicological evaluation

Cited by 67 publications

References 19 publications

Immobilization of Cadmium from Contaminated Sediment Using Cardboard Mill Sludge

Immobilization of Cadmium from Contaminated Sediment Using Cardboard Mill Sludge

Comparative Use of Soil Organic and Inorganic Amendments in Heavy Metals Stabilization

Trace Element Immobilization in Soil Using Amendments

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