Upward capillary leaching

Михайлов, А. Г.; Vashlaev, I. I.; Kharitonova, M. Yu.; Sviridova, M. L.

doi:10.1016/j.hydromet.2017.09.004

Cited by 5 publications

(7 citation statements)

References 22 publications

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“…The water content (W) and the heights of the internal wetting surface (H in ) and external wetting line (H out ) increase in power functions with time. However, the increase rate gradually decreases, which is consistent with the results of Mikhailov 32 and Yin 31 . When the sample is in contact with the liquid, the bottom is immersed in water, and the internal space is quickly filled by the liquid and tends to become saturated.…”

Section: Resultssupporting

confidence: 90%

“…However, only a few reports the capillary penetration. Yin 31 studied the influence of particles and accumulation pores on lateral capillary permeation, and Mikhailov 32 reported on the capillary rise during column leaching. These studies focussed on the height evolution of the wetting line on the column surface and capillary water absorption.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of intra-particle liquid capillary spread mechanisms in high-temperature stope leaching using MRI

Zhi

Gan

Zhang

et al. 2022

Sci Rep

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Capillary penetration is widely existed in stope leaching, both the rate of liquid wetting ore and flow out of ore are affected by it. Stope leaching is carried out in a high-temperature environment when mining minerals with large burial depth. The mechanism of intra-particle liquid capillary penetration mechanisms at high-temperature have not been revealed. In this paper, samples with a size of Φ50 mm × 100 mm were selected for quantitative analysis. The capillary rise behaviour inside samples with different porosity were detected at 30 °C, 40 °C and 50 °C by using magnetic resonance imaging (MRI). In most cases, capillary rise height is underestimated when the outside wetting line is used as an indicator, because the rise height inside the sample is greater. The liquid capillary rise height increased slightly with the temperature, whereas the wetting surface profile remained unchanged. The capillary rise rate increased significantly with porosity, mainly due to the increase of internal effective porosity. The results help to understand the liquid penetration behaviour under high-temperature stope leaching condition, and lay a theoretical foundation for improving the liquid permeability.

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Section: Resultssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Analysis of intra-particle liquid capillary spread mechanisms in high-temperature stope leaching using MRI

Zhi

Gan

Zhang

et al. 2022

Sci Rep

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“…Due to hydrophilic nature of substrates, water can move upward through capillary effect. The capillary rise occurs all the way from water table level to soil surface (Mikhailov, Vashlaev, Kharitonova, & Sviridova, 2018;Xing, Li, & Ma, 2019) or mixed growing Copyright © 2019 Universitas Brawijaya substrate surface. Capillary rise reveals the mecanism involved in groundwater evaporation.…”

Section: Overview Effects Of Wsi and Rfa Treatmentsmentioning

confidence: 99%

“…Capillary rise reveals the mecanism involved in groundwater evaporation. During the upward movement, water soluble minerals were carried and distributed with the growing substrate (Mikhailov, Vashlaev, Kharitonova, & Sviridova, 2018;Zhao et al, 2019). The distribution of the soluble minerals can be beneficial or toxic to crops, depending on the characteristic and concentration of the minerals.…”

Section: Overview Effects Of Wsi and Rfa Treatmentsmentioning

confidence: 99%

Depth of Water-Substrate Interface in Floating Culture and Nutrient-Enriched Substrate Effects on Green Apple Eggplant

2019

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A successful development of low cost floating culture system (FCS) has opened an opportunity for local farmers to cultivate vegetables during prolonged flooding at riparian wetlands. Research was aimed to identify the optimal depth of water-substrate interface (WSI) and optimal rate of NPK fertilizer application (RFA) in cultivating green apple eggplant using the FCS. Depths of WSI were adjusted to 0, 1, 3, and 6 cm and substrate was enriched with 8.4, 12.6, and 16.8 g NPK per pot. The enriched substrates were contained in pots and placed on floating rafts with variable WSI depths. Experiment was arranged in Split Plot Design. WSI was assigned as main plot and RFA was as subplot. The results exhibited that direct contact between water surface and substrate significantly increased water moisture content, enhanced shoot growth, and increased fruit yield, regardless the WSI depths. However, WSI treatments decreased SPAD value and restricted root elongation when WSI depth was more than 3 cm. The RFA treatments up to 16.8 g per pot could enhance shoot and root growth, and increased the fruit yield. This yield increase was associated with the increasing number of fruits, not the fruit size.

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“…Неизбежное сокращение запасов богатых руд цветных металлов и накопление продуктов их переработки в хвостохранилищах, содержащих не извлеченные цветные и драгоценные металлы, вызывает повышенный интерес к поиску технологических решений их освоения. В числе перспективных подходов рассматриваются использование капиллярного поднятия выщелачивающих растворов и высаливание мобилизованных в жидкую фазу ионов цветных металлов [1,2]. По различным оценкам, ежегодные отходы горно-металлургического производства в России составляют более 5 млрд.…”

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Simulation of the in Situ Leaching Process of Valeriite Ore and Tailings of Copper-Nickel Ore in the Norilsk Industrial Area

Mikhailov,

Gurevich,

Merkulova

et al. 2023

XVI INTERNATIONAL CONFERENCE "METALLURGY OF NON-FERROUS, RARE AND NOBLE METALS" Named After Corresponding Member of the RAS Gen

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rich ores of non-ferrous metals and the accumulation of products of their processing in tailings containing nonextracted non-ferrous and precious metals causes increased interest in the search for technological solutions for their development. Among the promising approaches are the use of capillary rise of leaching solutions and salting out of non-ferrous metal ions mobilized into the liquid phase. According to various estimates, the annual waste from mining and metallurgical production in Russia is more than 5 billion tons.

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Upward capillary leaching

Cited by 5 publications

References 22 publications

Analysis of intra-particle liquid capillary spread mechanisms in high-temperature stope leaching using MRI

Analysis of intra-particle liquid capillary spread mechanisms in high-temperature stope leaching using MRI

Depth of Water-Substrate Interface in Floating Culture and Nutrient-Enriched Substrate Effects on Green Apple Eggplant

Simulation of the in Situ Leaching Process of Valeriite Ore and Tailings of Copper-Nickel Ore in the Norilsk Industrial Area

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