Influence of Leaching Solution on the Soil-Water Characteristics of Ion-Absorbed Rare Earth Minerals and Its Hysteresis Effect
The soil-water characteristic curve is the basic constitutive relation to express the water-holding characteristics of ion-absorbed rare earth. The simulated solution mining test and pressure plate apparatus tests were carried out, the relationship between matric suction and water content under diff...
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| Format: | Article |
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MDPI AG
2023-05-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/13/5/637 |
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| author | Zhong-qun Guo Ling-feng Liu Tao Tang Ke-fan Zhou Xiao-jun Wang |
| author_facet | Zhong-qun Guo Ling-feng Liu Tao Tang Ke-fan Zhou Xiao-jun Wang |
| author_sort | Zhong-qun Guo |
| collection | DOAJ |
| description | The soil-water characteristic curve is the basic constitutive relation to express the water-holding characteristics of ion-absorbed rare earth. The simulated solution mining test and pressure plate apparatus tests were carried out, the relationship between matric suction and water content under different leaching actions was obtained. Using the Fredlund and Xing four-parameter model, the soil-water characteristic curves of ion-absorbed rare earth under different leaching actions were obtained, and the changing trend of each parameter was analyzed, and the influence of different leaching methods on the water-holding characteristic of soil was obtained. For different types of leaching solutions, the water-holding capacity of the soil varies from strong to weak for pure water, the 3% magnesium sulfate solution, and the 3% ammonium sulfate solution; as the concentration of the leaching solution increases, the water-holding capacity of the sample gradually decreases, and it decreases most significantly from 0% to 2%. Moreover, the saliency of the “hysteresis effect” of the soil-water characteristic curve was from high to low for pure water, the 3% magnesium sulfate solution, and the 3% ammonium sulfate solution, and the “hysteresis effect” showed a decreasing trend with the increase in the concentration. |
| first_indexed | 2024-03-11T03:27:13Z |
| format | Article |
| id | doaj.art-3cecbaac59604d58a22fccf25b708077 |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-11T03:27:13Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-3cecbaac59604d58a22fccf25b7080772023-11-18T02:36:26ZengMDPI AGMinerals2075-163X2023-05-0113563710.3390/min13050637Influence of Leaching Solution on the Soil-Water Characteristics of Ion-Absorbed Rare Earth Minerals and Its Hysteresis EffectZhong-qun Guo0Ling-feng Liu1Tao Tang2Ke-fan Zhou3Xiao-jun Wang4School of Civil Engineering and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaSchool of Civil Engineering and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaSchool of Civil Engineering and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaSchool of Civil Engineering and Surveying & Mapping Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaJiangXi Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaThe soil-water characteristic curve is the basic constitutive relation to express the water-holding characteristics of ion-absorbed rare earth. The simulated solution mining test and pressure plate apparatus tests were carried out, the relationship between matric suction and water content under different leaching actions was obtained. Using the Fredlund and Xing four-parameter model, the soil-water characteristic curves of ion-absorbed rare earth under different leaching actions were obtained, and the changing trend of each parameter was analyzed, and the influence of different leaching methods on the water-holding characteristic of soil was obtained. For different types of leaching solutions, the water-holding capacity of the soil varies from strong to weak for pure water, the 3% magnesium sulfate solution, and the 3% ammonium sulfate solution; as the concentration of the leaching solution increases, the water-holding capacity of the sample gradually decreases, and it decreases most significantly from 0% to 2%. Moreover, the saliency of the “hysteresis effect” of the soil-water characteristic curve was from high to low for pure water, the 3% magnesium sulfate solution, and the 3% ammonium sulfate solution, and the “hysteresis effect” showed a decreasing trend with the increase in the concentration.https://www.mdpi.com/2075-163X/13/5/637ion-absorbed rare earthin situ leachingsoil–water characteristic curvewater-holding characteristicsleach solution |
| spellingShingle | Zhong-qun Guo Ling-feng Liu Tao Tang Ke-fan Zhou Xiao-jun Wang Influence of Leaching Solution on the Soil-Water Characteristics of Ion-Absorbed Rare Earth Minerals and Its Hysteresis Effect Minerals ion-absorbed rare earth in situ leaching soil–water characteristic curve water-holding characteristics leach solution |
| title | Influence of Leaching Solution on the Soil-Water Characteristics of Ion-Absorbed Rare Earth Minerals and Its Hysteresis Effect |
| title_full | Influence of Leaching Solution on the Soil-Water Characteristics of Ion-Absorbed Rare Earth Minerals and Its Hysteresis Effect |
| title_fullStr | Influence of Leaching Solution on the Soil-Water Characteristics of Ion-Absorbed Rare Earth Minerals and Its Hysteresis Effect |
| title_full_unstemmed | Influence of Leaching Solution on the Soil-Water Characteristics of Ion-Absorbed Rare Earth Minerals and Its Hysteresis Effect |
| title_short | Influence of Leaching Solution on the Soil-Water Characteristics of Ion-Absorbed Rare Earth Minerals and Its Hysteresis Effect |
| title_sort | influence of leaching solution on the soil water characteristics of ion absorbed rare earth minerals and its hysteresis effect |
| topic | ion-absorbed rare earth in situ leaching soil–water characteristic curve water-holding characteristics leach solution |
| url | https://www.mdpi.com/2075-163X/13/5/637 |
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