Adsorption of sulfate from acid mine drainage in Northwestern China using Malan loess

Zheng, Qiang; Zhang, Yongbo; Li, Yanrong; Zhang, Zhixiang; Wu, Aijing; Shi, Hong

doi:10.1007/s12517-019-4525-7

Cited by 11 publications

(4 citation statements)

References 48 publications

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“…Taking sand as a repair material for AMD, Wu et al [91] studied the removal efficiency of sulfate ions in AMD by different particles, and the results showed that the removal efficiency was up to 62.36% for less than 0.075 mm. By using Malan loess, iron slag and carbon steel slag as adsorbent, the effect of solid-liquid ratio, contact time, initial concentration, temperature and pH on sulfate adsorption in AMD were studied [92,93], and the results indicated that acid conditions were favorable for sulfate adsorption. Wan and Li [94] introduced a new carbon source corncob for Sulfate Reducing Bacteria (SRB) to treat AMD, discussed the resource utilization of wastewater from sulfate mines, and verified the feasibility of biological treatment.…”

Section: Treatmentmentioning

confidence: 99%

“…For example, Yin et al [86], Zhao et al [51] and Liu [87] used desulfurization bacteria in natural loess and desulfurization vibrio bacteria in a sewage purification plant sludge to remove sulfate. Moreover, the neutralization precipitation method [90], sandy soil [91], Malan loess, ferrous slag and carbon steel slag [92,93], corn cob and SRB method [94], red mud [95], "Loess Wetland Plant Microbial Ecosystem" [96,97] have been used to treat AMD in Shanxi abandoned coal mines. However, all of these methods are undertaken in the laboratory and theoretical research stages, and there are still no successful cases for the AMD treatment project in Shanxi abandoned coal mines.…”

Section: Treatmentmentioning

confidence: 99%

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Review: Acid Mine Drainage (AMD) in Abandoned Coal Mines of Shanxi, China

Wang

Zhang

et al. 2020

Water

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Excessive exploitation and massive coal mine closures have brought about extensive goafs in Shanxi where 8780 coal mines have been abandoned in the last 20 years. Acid mine drainage (AMD) poses severe environmental impact and has become a prominent problem in Shanxi abandoned coal mine areas, which has aggravated the shortage of water resources and threatened the safety of the local drinking water supply. The purpose of this review is to protect the precious water resources and maintain sustainable use in Shanxi coal mines and downstream. By retrieving and analyzing about 90 domestic and international publications, a critical review of the AMD research results in Shanxi abandoned coal mines is conducted from the perspective of the formation mechanism, migration and transformation, prediction, treatment and management. The results shows that pyrite is the prerequisite for the formation of AMD, oxygen is the inducement, water is the carrier, and Fe3+ and microorganisms are the catalyst. The roadway system and geological structure are the dominant control factors. Finally, current difficulties and future research are pointed out. It is necessary to further strengthen the systematic research on the geological and hydrogeological conditions of abandoned coal mines, and explore an efficient, cheap, environmental technology, and construct the pollution risk assessment model for the AMD treatment. This study provides a scientific basis for the comprehensive treatment and management of AMD in abandoned coal mines in Shanxi.

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Section: Treatmentmentioning

confidence: 99%

Section: Treatmentmentioning

confidence: 99%

Review: Acid Mine Drainage (AMD) in Abandoned Coal Mines of Shanxi, China

Wang

Zhang

et al. 2020

Water

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“…Groundwater is the main water source supporting agricultural, industrial, and ecological needs in northwest China [1,2]. In particular, Xinjiang Province is an important agricultural production base and an important ecological barrier area in northwest China [3][4][5]. The Tailan River Basin is located in the Aksu region of Xinjiang, south of the Tianshan Mountains and northwest of Tarim Basin, deep in the hinterland of Eurasia [6].…”

Section: Introductionmentioning

confidence: 99%

Chemical Characteristics-Based Evolution of Groundwater in Tailan River Basin, Xinjiang, China

Liu,

Lu,

Yin

et al. 2023

Water

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Groundwater plays an important role in ecological environment protection in arid and semi-arid areas. Therefore, understanding the characteristics of hydrochemical evolution is of great significance for the sustainable use of groundwater in the area of the Tailan River Basin. The Tailan River Basin is located in an arid, ecologically sensitive area in western China. In this study, we collected 42 groups of representative water samples from the Tailan River Basin and analyzed the chemical distribution in the groundwater using mathematical statistics, Piper and Gibbs diagrams, ion ratio analysis, and hydrogeochemical simulation methods. We also discussed the water–rock interactions in the groundwater hydrochemical evolutionary process. The results were as follows: (1) The chemical types of groundwater changed from HCO3·SO4-Ca·Na to SO4·Cl-Na·Ca, Cl·SO4-Na, and Cl-Na, and the total dissolved solids content increased from less than 1 g/L to more than 40 g/L from the gravel plain to the fine soil plain. (2) The Gibbs diagram, the ion ratio analysis, and the saturation index showed that the groundwater chemical characteristics in the study area were mainly controlled by water–rock interactions, as well as evaporation and concentration. Along the runoff of groundwater, halite and gypsum were dissolved. Nevertheless, dolomite and calcite precipitated. The relationship between the chlor-alkali index and [(Na+ + K+)-Cl−] and [(Ca2+ + Mg2+)-(HCO3− + SO42−)] indicated that cation exchange also affects the chemical composition of groundwater in the area. (3) Through reverse hydrogeochemical simulation, the main water–rock effect of the groundwater runoff process revealed by qualitative analysis was quantitatively verified.

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“…Runtti et al (2016) developed a barium-modified analcime that exhibited a sulphate sorption capacity of 119 mg/g from mine water (pH 7-8), whereas Hong et al (2014) reported a capacity of 41 mg/g with AMD (pH 8 after lime treatment) using polypyrrole-grafted granular activated carbon. Additionally, Zheng et al (2019) achieved a sulphate removal capacity of 123.9 mg/g from AMD (pH 2) using unmodified Malan loess (a sediment formed by the accumulation of windblown dust, consisting of calcium and carbonate) as a sorbent. It is also worth noting that the sulphate sorption capacity of PG-Peat (i.e.…”

mentioning

confidence: 99%