Effect of Phosphate Addition on Cadmium Precipitation and Adsorption in Contaminated Arable Soil with a Low Concentration of Cadmium

Kim, Sung Un; Owens, Vance N.; Kim, Yong Gyun; Lee, Sang Mong; Park, Hyean Cheal; Kim, Keun Ki; Son, Hyeon; Hong, Chang Oh

doi:10.1007/s00128-015-1621-6

Cited by 24 publications

(9 citation statements)

References 24 publications

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“…The study area is a forest with vigorous vegetation. The Cd and As in the soil absorbed by plants were returned to the surface soil in the form of litter, which provides a source for the accumulation of Cd and As on the soil’s surface [41].…”

Section: Resultsmentioning

confidence: 99%

Enrichments of Cadmium and Arsenic and Their Effects on the Karst Forest Area

Wang

Bai

Liu

et al. 2019

IJERPH

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An understanding of the enrichment mechanisms of cadmium (Cd) and arsenic (As) in the process of rock weathering and soil formation is essential to develop agriculture according to local conditions. However, the enrichments of soil Cd and As under natural background conditions in karst areas are still uncertain. The enrichment factor, geo-accumulation index, redundancy analysis, and other methods were used to analyze the enrichment degree and the influencing factors of Cd and As on 5 rock–soil profiles and 15 topsoil samples, which were collected from a karst forest area in Libo County, Guizhou Province. The results showed that the enrichment process was divided into three stages. In the first stage, Cd and As were enriched in carbonate rocks, and their mean concentrations were 1.65 and 3.9 times those of the corresponding abundance of the crust. In the second stage, the enrichment of the parent rock into the soil, the enrichment factors of Cd and As in the parent material horizon relative to the bedrock horizon were 9.2 and 2.82, respectively. The third stage refers to the enrichments of Cd and As in the topsoil, where Cd enrichment was more obvious than that of As. Soil organic matter (SOM) and phosphorus (P) are important factors that influenced the enrichments of Cd and As in the topsoil. The functional groups of SOM were complexed with Cd and As; P easily formed precipitates with Cd, and the tree litter was fed back to the topsoil, which may be the reason for the surface enrichment of Cd and As. This study will help the scientific community understand the enrichment mechanisms of soil Cd and As in karst areas.

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Section: Resultsmentioning

confidence: 99%

Enrichments of Cadmium and Arsenic and Their Effects on the Karst Forest Area

Wang

Bai

Liu

et al. 2019

IJERPH

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“…1a, Fig. 3;Hong et al 2014;Kim et al 2015). Hong et al (2014) also found that the addition of high amount of P fertilizer significantly increased the residual Cd fraction in Cd-contaminated soil.…”

Section: Effects Of Biochar and P Fertilizer On Soil CD Fractionmentioning

confidence: 77%

“…On the other hand, the abundance of available P in soil provided by application of biochar and P fertilizer creates conditions for the occurrence of precipitation and promotes the conversion of carbonate and organic Cd forms to residual Cd fraction (Fig. 3; Chen et al 2020;Hamid et al 2019;Kim et al 2015). And the alkaline feature of biochar was the necessary condition for stable precipitation formation (Fig.…”

Section: Effects Of Biochar and P Fertilizer On Soil CD Fractionmentioning

confidence: 99%

Biochar combined with phosphate fertilizer application reduces soil cadmium availability and cadmium uptake of maize in Cd-contaminated soils

Zhang

Ding

2021

Environ Sci Pollut Res

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Cadmium (Cd) has become the primary pollution factor in farmland, which seriously threatens crop growth and food safety. A pot experiment was conducted to investigate the effect of combined application with biochar and P fertilizer on soil Cd availability and translocation, in which biochar was 0 (C 0 ) and 20 g kg −1 (C 20 ), P fertilizer was 0 (P 0 ), 20 (P 20 ), and 40 mg P kg −1 (P 40 ). Results showed that, compared with C 0 level, the content of DTPA-Cd in soil was significantly decreased with biochar addition after 60 days of cultivation, under C 20 level, soil DTPA-Cd in C 20 P 40 treatment were significantly increased. Under both C levels, the percentage of exchangeable Cd fraction at P 40 rate was significantly lower than that at P 20 rate, because the excess P in soil could precipitate Cd. The percentage of residual-Cd fraction was significantly increased with the combined addition of biochar and P fertilizer, particularly in C 20 P 40 treatment, which was 75.95%, while it was only 61.65% in C 0 P 0 treatment. The Cd translocation factor (TF) and bioconcentration factor (BCF) were also significantly reduced in C 20 P 20 and C 20 P 40 treatments compared with C 0 P 0 treatment. Therefore, the combined high P and biochar application was a good choice in inhibiting soil Cd availability and plant Cd uptake, which benefited to the safe utility of the Cd contaminated soil.

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“…Previously, it has been reported that cadmium is capable of forming complexes with nucleotides, possibly through the interaction with the phosphate groups (Sigel et al ., 2013). In addition, phosphate amendments have been shown to be effective in immobilizing cadmium in soils by enhancing cadmium precipitation as Cd 3 (PO 4 ) 2 (Hong et al ., 2014; Kim et al ., 2015). Based on these findings, it is likely that phosphate is involved in cadmium detoxification via its role in reducing cadmium bioavailability.…”

Section: Introductionmentioning

confidence: 99%

Low phosphate mitigates cadmium‐induced oxidative stress in Saccharomyces cerevisiae by enhancing endogenous antioxidant defence system

Kerdsomboon

Techo

Limcharoensuk

et al. 2021

Environmental Microbiology

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Summary Cadmium is a highly toxic heavy metal that causes many harmful effects on human health and ecosystems. Metal chelation‐based techniques have become a common approach for the treatment of metal poisoning and also for the remediation of metal contamination. Phosphate, an essential nutrient required for key cellular functions, has been supposed to be effective in reducing cadmium bioavailability, possibly through its chelating potential. In this study, we explored the effects of phosphate on cadmium toxicity and cellular response to cadmium stress in the eukaryotic model Saccharomyces cerevisiae. Our results reveal that cadmium toxicity is unexpectedly enhanced during phosphate repletion and optimal phosphate levels for yeast growth under cadmium stress conditions decline with increasing cadmium concentrations. The profound cadmium toxicity during phosphate repletion is unlikely to result from either elevated cadmium accumulation or dysregulated homeostasis of essential metals, but rather due to increased production of intracellular reactive oxygen species. We show that, under phosphate‐depleted conditions, the activities of antioxidant enzymes, especially Mn‐superoxide dismutase and catalase, are significantly promoted through transcriptional upregulation. Our findings highlight the important role of cellular response to phosphate limitation in mitigating cadmium toxicity and endogenous oxidative stress through the enhancement of antioxidant enzyme activity.

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Effect of Phosphate Addition on Cadmium Precipitation and Adsorption in Contaminated Arable Soil with a Low Concentration of Cadmium

Cited by 24 publications

References 24 publications

Enrichments of Cadmium and Arsenic and Their Effects on the Karst Forest Area

Enrichments of Cadmium and Arsenic and Their Effects on the Karst Forest Area

Biochar combined with phosphate fertilizer application reduces soil cadmium availability and cadmium uptake of maize in Cd-contaminated soils

Low phosphate mitigates cadmium‐induced oxidative stress in Saccharomyces cerevisiae by enhancing endogenous antioxidant defence system

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