Changes in Heavy Metal Concentrations in Acid Soils Under Pine Stands Subjected to Repeated Applications of Biosolids

Egiarte, G.; Pinto, M.; Ruiz‐Romera, Estilita; Arbestain, Marta Camps

doi:10.1097/ss.0b013e3181afd9b2

Cited by 8 publications

(7 citation statements)

References 24 publications

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“…This result was similar to that found by Egiarte et al (2009). In their study of downward-moving heavy metals in biosolid-amended soils, accumulation of Cd was observed at the lowest part of the soils rather than in the uppermost horizon due to the high mobility of Cd (Egiarte et al, 2009). Contrary to those of As and Cd, the Pb and Hg concentrations decreased with the soil depth.…”

Section: Distributions Of the Heavy Metals Among The Soil Layerssupporting

confidence: 77%

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Influence of Flue Gas Desulfurization Gypsum Amendments on Heavy Metal Distribution in Reclaimed Sodic Soils

Chen

Wang

et al. 2015

Environmental Engineering Science

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Although flue gas desulfurization (FGD) gypsum has become an effective soil amendment for sodic soil reclamation, it carries extra heavy metal contamination into the soil environment. The fate of heavy metals introduced by FGD gypsum in sodic or saline-alkali soils is still unclear. This work aims to investigate the effects of FGD gypsum addition on the heavy metal distributions in a sodic soil. Original soil samples were collected from typical sodic land in north China. Soil column leaching tests were conducted to investigate the influence of FGD gypsum addition on the soil properties, especially on distribution profiles of the heavy metals (Pb, Cd, Cr, As, and Hg) in the soil layers. Results showed that pH, electrical conductivity, and exchangeable sodium percentage in amended soils were significantly reduced from 10.2 to 8.46, 1.8 to 0.2 dS/m, and 18.14% to 1.28%, respectively. As and Hg concentrations in the soils were found to be positively correlated with FGD gypsum added. The amount of Hg in the leachate was positively correlated with FGD gypsum application ratio, whereas a negative correlation was observed between the Pb concentration in the leachate and the FGD gypsum ratio. Results revealed that heavy metal concentrations in soils complied well with Environmental Quality Standard for Soils in China (GB15618-1995). This work helps to understand the fate of FGD gypsum-introduced heavy metals in sodic soils and provides a baseline for further environmental risk assessment associated with applying FGD gypsum for sodic soil remediation.

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Section: Distributions Of the Heavy Metals Among The Soil Layerssupporting

confidence: 77%

“…Some researchers attribute these differences to different mobility levels of the heavy metals (Bruemmer et al, 1986;Egiarte et al, 2009). Pb and Hg are usually found to have the lowest mobility, while Cd is relatively mobile in soils (Bruemmer et al, 1986).…”

Section: Distributions Of the Heavy Metals Among The Soil Layersmentioning

confidence: 99%

Influence of Flue Gas Desulfurization Gypsum Amendments on Heavy Metal Distribution in Reclaimed Sodic Soils

Chen

Wang

et al. 2015

Environmental Engineering Science

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“…Pinus radiata D. Don is one of the most preferred species of plantation trees in the Atlantic biogeographic region of Europe (mostly in the north of Spain and west of France) due to its rapid growth and the high quality of its logs (Egiarte et al, 2009;Mosquera-Losada et al, 2010a). Moreover, this tree species is also one of the most widely used in the establishment of silvopastoral systems in Australia, New Zealand and Chile (Peri et al, 2007;Benavides et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…One option adopted in many countries around the world is the use of sewage sludge as a fertiliser (EPA, 1994) because of its low cost compared with mineral fertiliser (EFMA, 2009) and because it recycles nutrients (Sigua et al, 2005;Mosquera-Losada et al, 2010b). The productive benefits of the combination of lime and different doses of sewage sludge as a fertiliser in silvopastoral systems established under P. radiata D. Don have been shown in Northwest Spain (Mosquera-Losada et al, 2009a, 2010aEgiarte et al, 2009). However, the application of sewage sludge to soil can pose a threat to the environment, with the major concern arising from the fact that sewage sludge contains a relatively higher concentration of heavy metals than that normally found in soils (Smith, 1996;Singh et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Sewage sludge fertiliser use: Implications for soil and plant copper evolution in forest and agronomic soils

Ferreiro-Domínguez

Rigueiro-Rodríguez

Mosquera‐Losada

2012

Science of The Total Environment

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Fertilisation with sewage sludge may lead to crop toxicity and environmental degradation. This study aims to evaluate the effects of two types of soils (forest and agronomic), two types of vegetation (unsown (coming from soil seed bank) and sown), and two types of fertilisation (sludge fertilisation and mineral fertilisation, with a no fertiliser control) in afforested and treeless swards and in sown and unsown forestlands on the total and available Cu concentration in soil, the leaching of this element and the Cu levels in plant. The experimental design was completely randomised with nine treatments and three replicates. Fertilisation with sewage sludge increased the concentration of Cu in soil and plant, but the soil values never exceeded the maximum set by Spanish regulations. Sewage sludge inputs increased both the total and Mehlich 3 Cu concentrations in agronomic soils and the Cu levels in plant developed in agronomic and forest soils, with this effect pronounced in the unsown swards of forest soils. Therefore, the use of high quality sewage sludge as fertiliser may improve the global productivity of forest, agronomic and silvopastoral systems without creating environmental hazards.

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“…Results obtained by Yeganeh et al (2010) showed that the Zn, Cu and Pb concentrations in soil run up to 1600, 7 and 4.5 times respectively relative to controls after being undergone four years amendment. Significant increase in total Cd, Cu, Pb and Zn concentrations in topsoil has been found after amendment of sludge for seven years (Ben Achiba et al, 2010;Egiarte et al, 2009) so that the risks posed by recycling of sludge to soil need to be further and cautiously assessed. Trace metal (Cu, Pb, Zn) concentration limits have found to be exceeded in soil receiving a certain amounts of sludge for one year (Florido et al, 2011).…”

Section: Effects Of Sludge Amendment On Heavy Metal Concentrations Inmentioning

confidence: 99%

Achilles heel of environmental risk from recycling of sludge to soil as amendment: A summary in recent ten years (2007–2016)

Liu

2016

Waste Management

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a b s t r a c tRecycling sludge as a soil amendment has both positive and negative effects because of its enrichment in both nutrients and contaminants. So far, the negative effect has to be extensively investigated that the severities of different types of contaminants also remain unclear. The environmental behavior and risk of organic contaminant and pharmaceuticals, heavy metal and salt as well as pathogenic microorganisms brought by sludge amendment are summarized and discussed here. Organic contaminants and pharmaceuticals are typically found at low concentrations in sludge, the risks from sludge-amended soil decrease over time owing to its biodegradability. On the other hand, application of sludge generally increases soil salinity, which may cause physiological damage to plants grown in sludge-amended soil. In some extent, this negative effect can be alleviated by means of dilution; however, greater attention should be paid to long term increasing possible risk of eutrophication. Heavy metal (particularly of mobile heavy metals, such as Cd) with high concentrations in sludge and soil receiving considerable sludge can cause its incremental abundance in soil and crop contamination, further posing risks to humans, but most cases showed that there remained not excessive in heavy metal caused by sludge amendment. It is worth noting that increasing soil organic matter content may reduce transfer of heavy metal from soil to crops, but not restrict its uptake by crops at all. Combined literature together, it is summarized that heavy metal becomes a relatively severe bottleneck in recycling of sludge as soil amendment due to its nonbiodegradability and potential damage to health by adventuring contamination from agricultural products. Particular attention should therefore be paid to long term monitoring the change of heavy metals concentration in sludge amended soil.

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Changes in Heavy Metal Concentrations in Acid Soils Under Pine Stands Subjected to Repeated Applications of Biosolids

Cited by 8 publications

References 24 publications

Influence of Flue Gas Desulfurization Gypsum Amendments on Heavy Metal Distribution in Reclaimed Sodic Soils

Influence of Flue Gas Desulfurization Gypsum Amendments on Heavy Metal Distribution in Reclaimed Sodic Soils

Sewage sludge fertiliser use: Implications for soil and plant copper evolution in forest and agronomic soils

Achilles heel of environmental risk from recycling of sludge to soil as amendment: A summary in recent ten years (2007–2016)

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