A typical case study from smelter–contaminated soil: new insights into the environmental availability of heavy metals using an integrated mineralogy characterization

Xu, Da–Mao; Fu, Rongbing

doi:10.1007/s11356-022-19823-6

Cited by 11 publications

(2 citation statements)

References 59 publications

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“…The second is soil pH; the sulfide that forms Cd in acidic soils is highly reactive, and as pH increases, the sorption and uptake of Cd by the soil rise significantly and result in hydroxide precipitation (Siddique et al, 2022). Soil mineralogy is also considered another factor affecting the potential risk of toxic metals (Xu & Fu, 2022). For instance, reduced Cd sulfides such as greenockite (CdS) were blocked from oxidation to the more soluble sulfate (CdSO 4 ).…”

Section: Introductionmentioning

confidence: 99%

Effects of rapeseed residue organic fertilizer on cadmium toxicity in soil and its uptake and transfer by rice plants (Oryza sativa L.)

Yang

Jing

et al. 2023

Land Degrad Dev

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Cadmium (Cd) contamination of rice fields is a global agro‐environmental issue. Rapeseed (canola) residue organic fertilizer (RROF) as a potential strategy to minimize Cd accumulation in rice planted in acidic soil. The results showed that application of 7.5–30.0 g kg−1 RROF increased the soil pH value by 0.01–0.55 units, increased soil organic matter (OM) by 7.8–25.0%, increased soil microbial biomass carbon (MBC) and nitrogen (MBN) by 0.0–89.7% and 0.0–47.5%, respectively, and increased soil dehydrogenase (DH), acid phosphatase (ACP), and urease (UA) activities by 14.3–344.0%, 0.0–127.1%, and 3.5–14.3%, respectively. The application of RROF treatments reduced the soil acid‐extractable Cd (ACI–Cd) content by 8.1–36.4% and increased the reducible Cd (RED–Cd) and oxidizable Cd (OXI–Cd) by 1.3–36.4% and 16.2–47.9%, respectively. The path analysis demonstrated that soil OM, ACP activity, Mn, and Ca ions had a significant negative indirect effect on the decrease in soil ACI‐Cd (rOM = −0.628, rACP = −0.582, rMn = −0.627, rCa = −0.341), while Zn ions showed a strong direct effect (bZn = 0.567) and indirect positive effect (rZn = 0.580). In rice plants, the contents of Cd, Fe, K, Mg, P, and Zn in rice tissues increased, and the Cd content in rice grains decreased by 3.1–31.3% under RROF application. The results of the correlation analysis found that K and Zn in rice husks and Mg in grains were significantly and negatively correlated with the husk–grain translocation factor of Cd (r = −0.88** for Zn, r = −0.81** for K, and r = −0.59* for Mg). In addition, a significant negative correlation of root–straw translocation factors of Cd with Ca and Fe ions in the roots was observed (r = −0.63* and r = −0.60* for Ca at the filling and maturity stages of rice, r = −0.61* for Fe at the tillering stage of rice). RDA showed that the distribution fraction of soil Cd controlled the accumulation of Cd in various parts of rice, with soil ACI–Cd content explaining 22.4% of the total eigen values at a significant level, followed by 14.1% for OXI–Cd. This means that ACI–Cd was the primary factor that controlled Cd accumulation in rice grain, followed by OXI–Cd.

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Section: Introductionmentioning

confidence: 99%

Effects of rapeseed residue organic fertilizer on cadmium toxicity in soil and its uptake and transfer by rice plants (Oryza sativa L.)

Yang

Jing

et al. 2023

Land Degrad Dev

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“…Slags are attractive as a construction material due to its excellent geotechnical properties. However, in the environmental field, the concern has been spreading about the content and leaching of heavy metals, especially those that are harmful to health [11] [12] [13]; therefore, the physico-chemical characterization of materials is important to determine their use [14] [15]. Blast furnace slags are created when iron is made, producing raw materials such as raw iron ore, coke, lime, and limestone.…”

Section: Introductionmentioning

confidence: 99%

Chemical Characterization of Slags from an Old Smelter in Chihuahua, Mexico

Espejel-García¹,

Espejel-Garcia²,

Villalobos-Aragon³

2022

JMMCE

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Slag is waste from pyrometallurgical processing, usually stored in stacks or warehouses around or near smelters. Slag research has focused on potential environmental problems associated with slag weathering or processing for secondary metal recovery and/or other uses (construction, landscaping, etc.). Located in northern Mexico, the city of Chihuahua has a mining history that dates back to the eighteenth century. A lead smelter located southeast of Chihuahua City; closed in 1997, leaving behind a large pile of slag. In this study, a chemical analysis of smelter slag was carried out. The tailings contain Zn (15 -35 wt%), Pb (0.5 -4 wt%), As (0.6 wt%), Sn (888 ppb

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Source identification and health risk assessment of heavy metals with mineralogy: the case of soils from a Chinese industrial and mining city

Wang

et al. 2023

Environ Geochem Health

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A typical case study from smelter–contaminated soil: new insights into the environmental availability of heavy metals using an integrated mineralogy characterization

Cited by 11 publications

References 59 publications

Effects of rapeseed residue organic fertilizer on cadmium toxicity in soil and its uptake and transfer by rice plants (Oryza sativa L.)

Effects of rapeseed residue organic fertilizer on cadmium toxicity in soil and its uptake and transfer by rice plants (Oryza sativa L.)

Chemical Characterization of Slags from an Old Smelter in Chihuahua, Mexico

Source identification and health risk assessment of heavy metals with mineralogy: the case of soils from a Chinese industrial and mining city

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