Spatial and temporal distributions of sulfur species in paddy soils affected by acid mine drainage in Dabaoshan sulfide mining area, South China

Yang, Chengfang; Lu, Guining; Chen, Meiqin; Xie, Yingying; Guo, Chuling; Reinfelder, John R.; Yi, Xiaoyun; Wang, Han; Dang, Zhi

doi:10.1016/j.geoderma.2016.06.032

Cited by 34 publications

(36 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…So SO 4 2- concentrations will be another possible influencing factor. Moreover, SO 4 2- ligands with related to heavy metals and the negative charge will enhance the adsorption of metals when SO 4 2- adsorption on the surface of minerals [ 41 – 42 , 44 ].…”

Section: Resultsmentioning

confidence: 99%

Mineralogical characteristics of sediments and heavy metal mobilization along a river watershed affected by acid mine drainage

et al. 2018

Self Cite

View full text Add to dashboard Cite

Trace-element concentrations in acid mine drainage (AMD) are primarily controlled by the mineralogy at the sediment-water interface. Results are presented for a combined geochemical and mineralogical survey of Dabaoshan Mine, South China. Developed sequential extraction experiments with the analysis of the main mineralogical phases by semi-quantitative XRD, differential X-ray diffraction (DXRD) and scanning electron microscopy (SEM) were conducted to identify the quantitative relationship between iron minerals and heavy metals. Results showed that schwertmannite, jarosite, goethite and ferrihydrite were the dominant Fe-oxyhydroxide minerals which were detected alternately in the surface sediment with the increasing pH from 2.50 to 6.93 along the Hengshi River. Decreasing contents of schwertmannite ranging from 35 wt % to 6.5 wt % were detected along the Hengshi River, which was corresponding to the decreasing metal contents. The easily reducible fractions exert higher affinity of metals while compared with reducible and relatively stable minerals. A qualitative analysis of heavy metals extracted from the sediments indicated that the retention ability varied: Pb > Mn > Zn > As ≈ Cu > Cr > Cd ≈ Ni. Results in this study are avail for understanding the fate and transport of heavy metals associated with iron minerals and establishing the remediation strategies of AMD systems.

show abstract

Section: Resultsmentioning

confidence: 99%

Mineralogical characteristics of sediments and heavy metal mobilization along a river watershed affected by acid mine drainage

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…13 In Chinese, Sch is called "shī weī tè màn shí", 14 and was rst found in AMD sediments from the Malan coal mine, Shanxi Province, China, in 2006, 15 and aerwards at the Dabaoshan mine in South China. [16][17][18][19] The research development of Sch and the primary contributions of researchers or groups are listed in Table 1. The table shows that natural Sch was discovered, identied, and structurally classied within the rst few years of its discovery.…”

Section: Discoverymentioning

confidence: 99%

Schwertmannite: occurrence, properties, synthesis and application in environmental remediation

Zhang

Bi²,

Li³

et al. 2018

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…The presence of oxygen will generate ideal redox conditions for aerobic bacteria that use oxygen as an electron acceptor in the oxidation of substrates such as Fe and S (discussed below in Section 3.4). Such differences in surface sediment S concentration compared to deeper sediments have also been seen in paddy field cores impacted by AMD (Yang et al, 2016). It has been suggested that the deposition of sulfate onto AMD-affected sediments is often in the form of the iron-oxyhydroxysulphate mineral schwertmannite, which is mediated by low pH values and high Fe concentrations (Chen et al, 2015).…”

Section: High Resolution Analysis Of Core Sedimentsmentioning

confidence: 81%

The association of microbial activity with Fe, S and trace element distribution in sediment cores within a natural wetland polluted by acid mine drainage

et al. 2019

View full text Add to dashboard Cite

Natural recovery and remediation of acid mine drainage (AMD) reduces the generation of acidity and transport of trace elements in the runoff. A natural wetland that receives and remediates AMD from an abandoned copper mine at Parys Mountain (Anglesey, UK) was investigated for better understanding of the remediation mechanisms. Water column concentrations of dissolved Fe and S species, trace metal(loid)s and acidity decreased markedly as the mine drainage stream passed through the wetland. The metal(loid)s were removed from the water column by deposition into the sediment. Fe typically accumulated to higher concentrations in the surface layers of sediment while S and trace metal(loid)s were deposited at higher concentration within deeper (20-50 cm) sediments. High resolution X-ray fluorescence scans of sediment cores taken at three sites along the wetland indicates co-immobilization of Zn, Cu and S with sediment depth as each element showed a similar core profile. To examine the role of bacteria in sediment elemental deposition, marker genes for Fe and S metabolism were quantified. Increased expression of marker genes for S and Fe oxidation was detected at the same location within the middle of the wetland where significant decrease in SO 4 2and Fe 2+ was observed and where generation of particulate Fe occurs. This suggests that the distribution and speciation of Fe and S that mediates the immobilization and deposition of trace elements within the natural wetland sediments is mediated in part by bacterial activity.

show abstract

Spatial and temporal distributions of sulfur species in paddy soils affected by acid mine drainage in Dabaoshan sulfide mining area, South China

Cited by 34 publications

References 78 publications

Mineralogical characteristics of sediments and heavy metal mobilization along a river watershed affected by acid mine drainage

Mineralogical characteristics of sediments and heavy metal mobilization along a river watershed affected by acid mine drainage

Schwertmannite: occurrence, properties, synthesis and application in environmental remediation

The association of microbial activity with Fe, S and trace element distribution in sediment cores within a natural wetland polluted by acid mine drainage

Contact Info

Product

Resources

About