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

Aijing Wu, Yongbo Zhang, Xuehua Zhao, Jiamin Li, Guowei Zhang, Hong Shi, Lina Guo and Shuyuan Xu
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Aijing Wu: College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Yongbo Zhang: College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Xuehua Zhao: College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Jiamin Li: College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Guowei Zhang: College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Hong Shi: College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Lina Guo: College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Shuyuan Xu: College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

Sustainability, 2022, vol. 14, issue 4, 1-13

Abstract: 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.

Keywords: AMD; phytoremediation; sulfate; hydroponic experiment; wetland plants; ecological pollution (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:14:y:2022:i:4:p:2148-:d:748777

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