Strategies to characterize the geochemical interrelationship between coastal saline groundwater and seawater

Chidambaram, S.; Bhandary, Harish; Ali, Ameena

doi:10.1007/s12665-021-09924-9

Cited by 7 publications

(3 citation statements)

References 154 publications

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“…Ca and/or Mg (cations) in groundwater may have a direct cation exchange with Na (cation) in the clay layer near the coastline of Laizhou Bay [54]. Cation exchange plays an essential role in the change in the contents of Na and Mg [55]. Changes in the compositions of water and sediment can also lead to significant variations in the behavior of U [56].…”

Section: Discussionmentioning

confidence: 99%

Using Principal Component Analysis (PCA) Combined with Multivariate Change-Point Analysis to Identify Brine Layers Based on the Geochemistry of the Core Sediment

Su,

Yu,

et al. 2023

Water

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The underground brine in Southern Laizhou Bay is characterized by its large scale and high concentration, which can affect the distribution and migration of geochemical elements in sediments. Most studies on the brine are based on hydrochemical analysis, with little consideration being given from a geochemical perspective. Principal component analysis (PCA) is a powerful tool for discovering relationships among many elements and grouping samples in large geochemical datasets. However, even after reducing the dimensions through PCA, researchers still need to make judgments about the meaning represented by each principal component. Change-point analysis can effectively identify the points at which the statistical properties change in a dataset. PCA and change-point analysis have their respective advantages in the study of large sets of geochemical data. Based on the geochemical data of the LZ908 core, by combining these two methods, this study identified four elements (U, MgO, Br, and Na2O) related to the action of seawater through PCA; then, multivariate change point analysis was conducted on these elements to detect the depths of different brine layers. The results of the analysis are basically consistent with those of other studies based on the water content, salinity, and other data, thus proving the effectiveness of this method. The combination of these two methods may also lead to novel approaches for related research.

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Section: Discussionmentioning

confidence: 99%

Using Principal Component Analysis (PCA) Combined with Multivariate Change-Point Analysis to Identify Brine Layers Based on the Geochemistry of the Core Sediment

Su,

Yu,

et al. 2023

Water

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“…Compared with developed countries such as Europe and the United States, there are significant differences in the site management policies and site pollution of contaminated sites in China 16 . Therefore, in the process of exploration of contaminated site remediation technology, the shortcomings of Portland cement curing and stabilization technology are gradually exposed 17 : The applicability of soil contaminated with high concentrations of heavy metals is extremely poor 18 . A large number of research results have proved that the presence of high concentrations of heavy metals, such as Pb, Zn, Cu, and Cd, in polluted soil can significantly inhibit the reaction of Portland cement hydration products.…”

Section: Methods Of Solidification and Remediation Of Heavy Metal Con...mentioning

confidence: 99%

“…The applicability of soil contaminated with high concentrations of heavy metals is extremely poor 18 . A large number of research results have proved that the presence of high concentrations of heavy metals, such as Pb, Zn, Cu, and Cd, in polluted soil can significantly inhibit the reaction of Portland cement hydration products.…”

Section: Methods Of Solidification and Remediation Of Heavy Metal Con...mentioning

confidence: 99%

Solidification, remediation and long-term stability of heavy metal contaminated soil under the background of sustainable development

Jia

Liu

2022

Sci Rep

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At present, the global pollution has seriously exceeded the standard. With the passage of time, pollution has gradually affected people’s daily lives, but the solution to pollution is far from achieving a better treatment effect. For the treatment of pollution, in addition to considering the treatment effect, it is also necessary to consider whether the treatment method will cause pollution and the cost of the treatment of the pollutants. As one of the lifelines of human survival, the land is also suffering from pollution. The impact of heavy metal pollution is particularly serious, and there is no better solution. Based on this, this paper proposes a curing agent based on sustainable remediation to solve the soil pollution of heavy metals. The main material is Basic oxygen furnace slag (BOFS), which has excellent social development characteristics in all aspects, and the raw materials are calcium carbide residue (CCR) and phosphogypsum (PG) to explore a more suitable curing agent. (consisting of BOFS, CCR, and PG, abbreviated as BCP). The experimental results in this paper show that the volume of pores and pores in the agglomerates are slightly reduced, and the content of curing agent is increased from 4 to 10%, while the corresponding volume is only reduced by 0.006 and 0.017 mL/g. Therefore, it can be seen that the reduction of the pore volume between the aggregates of the stabilized species of BCP has made a major contribution to the strength development.

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Source, mobilization and distribution of uranium in a complex aquifer system: a spatial and temporal evaluation using geochemical, statistics and GIS approach

et al. 2022

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Strategies to characterize the geochemical interrelationship between coastal saline groundwater and seawater

Cited by 7 publications

References 154 publications

Using Principal Component Analysis (PCA) Combined with Multivariate Change-Point Analysis to Identify Brine Layers Based on the Geochemistry of the Core Sediment

Using Principal Component Analysis (PCA) Combined with Multivariate Change-Point Analysis to Identify Brine Layers Based on the Geochemistry of the Core Sediment

Solidification, remediation and long-term stability of heavy metal contaminated soil under the background of sustainable development

Source, mobilization and distribution of uranium in a complex aquifer system: a spatial and temporal evaluation using geochemical, statistics and GIS approach

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