The remediation efficiency of heavy metal pollutants in water by industrial red mud particle waste

Bai, Bing; Bai, Fan; Li, Xianke; Nie, Qiulin; Jia, Xiangxin; Wu, Haiyan

doi:10.1016/j.eti.2022.102944

Cited by 192 publications

(36 citation statements)

References 46 publications

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“…3) The adsorption and desorption of particle components to soil particles are related to several factors such as temperature, soil structure, particle type, etc. (Bai et al, 2021;Bai et al, 2022) Considering the complexity of particle adsorption and desorption, this paper does not consider particle adsorption and desorption in analyzing the percolation of salt solution in soil during temperature reduction. The theory of particle adsorption and desorption can be combined with the theory of permeability coefficient in this paper, which may have some application prospects in the analysis of soil pollutant diffusion.…”

Section: Discussionmentioning

confidence: 99%

Study on the permeability coefficient model of salinized frozen soil based on unfrozen water content curve

Liu

Cheng²,

Ge³

et al. 2023

Front. Earth Sci.

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Due to the fact that the permeability coefficient of salinized frozen soil is difficult to measure through experimental test, this paper develops a model of the permeability coefficient of salinized frozen soil by using SFCC curves, which takes into account the effects of velocity slip on pore wall and seepage of unfrozen water film. This model is on the basis of capillary bundle model, and combines with phase diagram theory of water-salt binary system. For the silty clay from Qinghai-Tibet Plateau and silts from Onedia, the permeability coefficient fluctuation vs. temperature is calculated using the model. The estimated calculations of the permeability coefficient model were all found to be in good agreement with the experimental data by comparison. Additionally, the variation trend of permeability coefficient of NaCl, Na2SO4, and Na2CO3 type saline soils containing different salt contents is examined. The results indicate that before saline soils freeze, NaCl does not crystallize and thus has little impact on the permeability coefficient, whereas Na2SO4 and Na2CO3 both crystallize and block the pores, the permeability coefficient decreases with decreasing temperature. Once the saline soils have frozen, the freezing temperature has a larger impact on the permeability coefficient. During the early stage of freezing, the lower the freezing temperature is, the larger the permeability coefficient is. In the late stage of freezing, the permeability coefficients with various salt contents tended to be the same.

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Section: Discussionmentioning

confidence: 99%

Study on the permeability coefficient model of salinized frozen soil based on unfrozen water content curve

Liu

Cheng²,

Ge³

et al. 2023

Front. Earth Sci.

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“…Environmental chemical pollution has caused many health concerns in the last two decades (Ge et al, 2019;Ke et al, 2022;Lin et al, 2021;Peng et al, 2021;Tian et al, 2021;Wu et al, 2021;Yang et al, 2021;Yin et al, 2021Yin et al, , 2022Zhang et al, 2019Zhang et al, , 2022Zhao et al, 2021). The chemical composition of water is the result of long-term interaction between the water body and the surrounding environment in the process of circulation (Bai et al, 2022;Chen et al, 2021;Dai et al, 2022;Fang et al, 2021;Liu et al, 2020;Quan et al, 2021;Xu et al, 2021;Zhang et al, 2021). The history of formation and chemical characteristics of water from streams can be indicated in the basin (Pant et al, 2018;Zongxing et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Analysis of hydrochemical characteristics and genesis of water-deficient rivers in China: a case study of the Ciyao River Basin in Shanxi Province

Hui

Jin

et al. 2023

Qual. Assur. Saf. Crops Foods

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In order to explore the chemical water characteristics of water-scarce rivers in China, the Ciyao River basin in Shanxi Province was taken as a case study. Water samples of the mainstream and its tributaries were collected in the wet, normal, and dry seasons of 2021. The composition and spatial variation of the main ions in the water body were analyzed using the ion chromatography (IC) instrument. In addition, Pearson correlation analyses were used to evaluate relevant correlation between ion concentrations. The results showed that the overall surface water in the study area was weakly alkaline, and the content of total dissolved solids (TDS) varied greatly, ranging from 702 to 5091 mg/L, with an average of 2897 mg/L. The TDS showed a middle stream > downstream > upstream trend, and the hydrochemical type was Cl · SO4 · HCO3 – Ca · Na. The contents of most ions were significantly changed based on differences in sampling sites and seasons. Natural and human factors influence the chemical characteris-tics of the river. According to the Gibbs diagram and Piper diagram (Figure 3), the ionic composition of the water body in the basin is mainly affected by the joint action of rock weathering and evaporative crystallization. Carbonate rocks constitute the most significant rock weathering, followed by evaporative and silicate rocks. Wastewater from industrial enterprises, agricultural wastewater, and activities of people’s daily living also have some influence on rock weathering. Cation exchange is also important in forming chemical water components in the Ciyao River. The research results can provide technical references and a basis for regional water environment protection, water resources development and utilization, and watershed eco-hydrology research.

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“…Environmental pollution has become a global concern in the last two decades (Bai et al, 2022;Chen et al, 2022;Peng et al, 2021;Tian et al, 2021;Wan et al, 2022;Xu et al, 2021;Yang et al, 2021;Yin et al, 2022;Zhang et al, 2022a;Zhao et al, 2021Zhao et al, , 2022. Chemical pollution caused by wastewater discharge (Ge et al, 2019;Lin et al, 2021;Tan et al, 2022aTan et al, , 2022b and solid waste (Wang et al, 2022) and ambient air (Liu et al, 2022;Wu et al, 2021;Yin et al, 2021Yin et al, , 2022 can pose harmful effects on the quality of water resources.…”

Section: Introductionmentioning

confidence: 99%

Impact of watershed habitat quality based on land use: a case study of taking Ciyao River Basin

Hui

Jin

et al. 2023

Qual. Assur. Saf. Crops Foods

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Land use pattern is one of the most important factors affecting the quality of habitats, which is taken as the research objective in this study. Based on the land use data of Ciyao river basin from 1985 to 2020, transfer matrix analysis, superposition analysis, and zoning statistics were carried out by ArcGIS. The impact of main threat sources (cultivated land, urban land, and rural residential land) on water quality was calculated using the investment model. The habitat changes and the impact of the habitat quality of the basin on the hydrological and water quality were analyzed. The findings demonstrated that the land-type conversion in Ciyao River Basin from 1985 to 2020 is mainly manifested in the conversion from cultivated land to construction land (94.49 km2), and from grassland to cultivated land (21.59 km2) and forest land (27.15 km2). The habitat quality of the Ciyao River Basin decreased gradually from North to South. The medium and high habitat quality areas are mainly concentrated in the headwater area of the river. Due to the change in land type, the habitat quality in the headwater area of the river significantly improved from 2005 to 2020, while the habitat quality in the confluence area of the Wuliang section significantly declined from 1995 to 2015. Due to the improvements of habitat quality in the source area of the river and water conservation capacity, the total amount of water resources and annual runoff depth of Ciyao River significantly increased from 2005 to 2019 without significant changes in precipitation. The water quality of the Ciyao River has improved due to development of environmental pollution control and the improvement of watershed habitat in 2016–2020.

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The remediation efficiency of heavy metal pollutants in water by industrial red mud particle waste

Cited by 192 publications

References 46 publications

Study on the permeability coefficient model of salinized frozen soil based on unfrozen water content curve

Study on the permeability coefficient model of salinized frozen soil based on unfrozen water content curve

Analysis of hydrochemical characteristics and genesis of water-deficient rivers in China: a case study of the Ciyao River Basin in Shanxi Province

Impact of watershed habitat quality based on land use: a case study of taking Ciyao River Basin

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