Experimental research on various slags as a potential adsorbent for the removal of sulfate from acid mine drainage

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

doi:10.1016/j.jenvman.2020.110880

Cited by 32 publications

(10 citation statements)

References 19 publications

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“…In addition, the contaminants in AMD can pose a risk to human health through the food chain [6,7]. Previous studies have shown that AMD has become a long-term source of pollution, as it can continue to be generated for hundreds of years even after mining activities have ceased [8,9]. Therefore, there is an urgent need to investigate economical and efficient treatment technologies to minimize the negative impacts of AMD in response to its serious pollution problem.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Hydroponics of Wetland Plants for the Treatment of Acid Mine Drainage

Zhang

Zhao

et al. 2022

Sustainability

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Acid Mine Drainage (AMD) has become an important issue due to its significant ecological pollution. In this paper, phytoremediation technology and mechanism for AMD were investigated by hydroponic experiments, using six wetland plants (Phragmites australis, Typha orientalis, Cyperus glomeratus, Scirpus validus, Iris wilsonii, Juncus effusus) as research objects. The results showed that (1) the removal of sulfate from AMD was highest for Juncus effusus (66.78%) and Iris wilsonii (40.74%) and the removal of Mn from AMD was highest for Typha orientalis (>99%) and Phragmites australis (>99%). In addition, considering the growth condition of the plants, Juncus effusus, Iris wilsonii, and Phragmites australis were finally selected as the dominant plants for the treatment of AMD. (2) The removal pathway of pollutants in AMD included two aspects: one part was absorbed by plants, and the other part was removed through hydrolysis and precipitation processes. Our findings provide a theoretical reference for phytoremediation technology for AMD.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on the Hydroponics of Wetland Plants for the Treatment of Acid Mine Drainage

Zhang

Zhao

et al. 2022

Sustainability

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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%

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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“…20,21 heavy metals as a class of contaminants have gotten increasing attention. [22][23][24] Moreover, mine-derived hard rock and liquid tailings waste can alter the chemistry of water and sediment 25 as well as the release of contaminants that endanger aquatic ecosystems and human health. 26,27 Therefore, mining industries and chemical facilities are considered the primary pollution sources, 28 and their wastewater need to be treated before releasing into the environment.…”

Section: Introductionmentioning

confidence: 99%

Global research progress on mining wastewater treatment: a bibliometric analysis

Zahoor

Mao

Jia

et al. 2022

Environ. Sci.: Adv.

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Experimental research on various slags as a potential adsorbent for the removal of sulfate from acid mine drainage

Cited by 32 publications

References 19 publications

Experimental Study on the Hydroponics of Wetland Plants for the Treatment of Acid Mine Drainage

Experimental Study on the Hydroponics of Wetland Plants for the Treatment of Acid Mine Drainage

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

Global research progress on mining wastewater treatment: a bibliometric analysis

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