Clay mineralogy affects the efficiency of sewage sludge in reducing lead retention of soils

Pôggere, Giovana Clarice; Melo, Vander Freitas; Serrat, Beatriz Monte; Mangrich, Antônio S.; França, Amanda; Corrêa, Rodrigo Studart; Barbosa, Julierme Zimmer

doi:10.1016/j.jes.2018.07.017

Cited by 9 publications

(8 citation statements)

References 39 publications

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“…However, as a consequence of the addition of Cu 0 or Ag 0 ENPs suspensions to soil samples, the pH i values decreased, being less acidic in T-OM as compared to R-OM (Table 4), which was consistent with the buffering capacity of OM [73]. An acid pH can be associated with a decrease in the electrostatic repulsion between H 2 PO 4 − and the negatively charged surface of the organic matter (-COOH, -OH) due to a decrease in the number of deprotonated surface groups [74]. Furthermore, the protonation of surface hydroxyl groups of Fe/Al (hydr)oxides might be favored by acid pH values, promoting the H 2 PO 4 − adsorption through a ligand exchange [24,75,76].…”

Section: Ad-and Desorption Of Phosphate On Soilssupporting

confidence: 70%

Describing Phosphorus Sorption Processes on Volcanic Soil in the Presence of Copper or Silver Engineered Nanoparticles

et al. 2021

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Engineered nanoparticles (ENPs) present in consumer products are being released into the agricultural systems. There is little information about the direct effect of ENPs on phosphorus (P) availability, which is an essential nutrient for crop growthnaturally occurring in agricultural soils. The present study examined the effect of 1, 3, and 5% doses of Cu0 or Ag0 ENPs stabilized with L-ascorbic acid (suspension pH 2–3) on P ad- and desorption in an agricultural Andisol with total organic matter (T-OM) and with partial removal of organic matter (R-OM) by performing batch experiments. Our results showed that the adsorption kinetics data of H2PO4− on T-OM and R-OM soil samples with and without ENPs were adequately described by the pseudo-second-order (PSO) and Elovich models. The adsorption isotherm data of H2PO4− from T-OM and R-OM soil samples following ENPs addition were better fitted by the Langmuir model than the Freundlich model. When the Cu0 or Ag0 ENPs doses were increased, the pH value decreased and H2PO4− adsorption increased on T-OM and R-OM. The H2PO4− desorption (%) was lower with Cu0 ENPs than Ag0 ENPs. Overall, the incorporation of ENPs into Andisols generated an increase in P retention, which may affect agricultural crop production.

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Section: Ad-and Desorption Of Phosphate On Soilssupporting

confidence: 70%

Describing Phosphorus Sorption Processes on Volcanic Soil in the Presence of Copper or Silver Engineered Nanoparticles

et al. 2021

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“…Reduction of metal bioavailability in contaminated soils after application of sewage sludge has also been achieved in other studies (Alvarenga et al., 2009; Andrés & Francisco, 2008). Following the application of thermal sludge in soils contaminated with Pb, decrease in soluble‐Pb and increase in exchangeable‐Pb concentrations have been observed in Inceptisol, contrasting the results obtained in an Oxisol (Poggere et al., 2019). Mean reduction of soluble‐Pb contents relative to control soils was 99% after soil application of limed sewage sludge (Figure 3e, 3f).…”

Section: Resultsmentioning

confidence: 89%

“…The g‐factor of samples varied from 2.0034 to 2.0038, and such higher values indicate the formation of oxygen‐rich groups (Polak et al., 2005). The HA sample showed higher spin density values (g −1 spin) than the others, indicating organic compound concentrations where OFRs are located (Poggere et al., 2019). Furthermore, the lines with the values (Δ HPP ) are in accordance with those of other humic substances.…”

Section: Resultsmentioning

confidence: 99%

“…For pH determination, a 1:2.5 soil and deionized water ratio was used. Pb fractionation in soil samples was carried as follows (Duarte et al., 2012; Poggere et al., 2019): (1) soluble: extracted with deionized water; (2) exchangeable: extracted with 0.5 mol L −1 Ca(NO 3 ) 2 ; (3) precipitated: extracted with 0.02 mol L −1 HNO 3 ; (4) specifically adsorbed on the organic matter: extracted with 30% (v/v) H 2 O 2 and 0.02 mol L −1 HNO 3 ; (5) specifically adsorbed on the Fe and Mn oxide: extracted with 0.2 mol L −1 ammonium oxalate, 0.2 mol L −1 oxalic acid and 0.1 mol L −1 ascorbic acid; (6) specifically adsorbed on the gibbsite and kaolinite: extracted with 1.25 mol L −1 NaOH; and 7) residual fraction: digested with HF concentrated, HNO 3 concentrated, and 30% (v/v) H 2 O 2 .…”

Section: Methodsmentioning

confidence: 99%

“…In a previous study, the application effect of thermal sewage sludge on Pb remediation varied according to the prevalence of either iron oxides or kaolinite/gibbsite in soils (Poggere et al., 2019). Studies on the use of limed sewage sludge for remediation of soils contaminated with metals are limited, especially those related to soils with contrasting mineralogy.…”

Section: Introductionmentioning

confidence: 99%

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Reducing lead solubility in kaolinitic and oxidic soils by application of limed sewage sludge

Pôggere

Melo

Serrat

et al. 2021

Environmental Quality Mgmt

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Little attention has been paid to the effects of soil mineralogy on remediation efficiency of sewage sludge. To fill this gap, we applied limed sewage sludge to Pb‐contaminated soil samples of an Oxisol rich in hematite (309 g kg−1) and gibbsite (322 g kg−1) and to an Inceptisol rich in kaolinite (683 g kg−1). Soil samples were collected from B horizon, being both of them acid, clayey, and poor in organic matter. Soil samples were incubated for 40 days and evaluated for Pb after fractioning. Limed sewage sludge neutralized the soluble and exchangeable‐Pb forms in the kaolinitic and oxidic soils primarily as a result of pH increase. It was measured increased concentrations of unavailable forms of Pb such as precipitated‐Pb, Fe and Mn oxide‐Pb, gibbsite and kaolinite‐Pb, and residual‐Pb in the kaolinitic Inceptisol. Likewise, it measured increased concentrations of precipitated‐Pb, organic matter‐Pb, Fe and Mn oxide‐Pb, and residual‐Pb in the Oxisol. Results have demonstrated that limed sewage sludge decreases concentrations of Pb fractions more susceptible to leaching or more bioavailable, while increasing Pb fractions that pose lower risks to the environment. Such results indicate that limed sewage sludge can be used for the remediation of Pb‐contaminated soils regardless of soil mineralogy.

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Assessing soil contamination in automobile scrap yards by portable X-ray fluorescence spectrometry and magnetic susceptibility

Barbosa

Pôggere

Teixeira

et al. 2019

Environ Monit Assess

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Clay mineralogy affects the efficiency of sewage sludge in reducing lead retention of soils

Cited by 9 publications

References 39 publications

Describing Phosphorus Sorption Processes on Volcanic Soil in the Presence of Copper or Silver Engineered Nanoparticles

Describing Phosphorus Sorption Processes on Volcanic Soil in the Presence of Copper or Silver Engineered Nanoparticles

Reducing lead solubility in kaolinitic and oxidic soils by application of limed sewage sludge

Assessing soil contamination in automobile scrap yards by portable X-ray fluorescence spectrometry and magnetic susceptibility

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