high frequency leaching and adsorption in montserrat is

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  Searching for a high efficiency and environmental benign ...

  2018101 · Additionally, the high zeta potential can increase the repulsive force between particles, leading to landslides. Therefore, aluminum sulfate as a leaching agent of IAREs not only has a high LE but also can reduce the amount of …

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  Cell-wall based aerogels for Ce (III) adsorption from leaching …

  2023111 · The adsorption process occurred by electrostatic interaction, ion exchange with –COO −, and chelation with C-NH 2. Adsorption in a sample of leaching tailings showed that the adsorption efficiency of composite aerogels for Ce (III) and Eu (III) reached 68% and 81%, respectively, demonstrating good practicability.

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  Phosphorus availability and leaching losses in annual and

  20211013 · These observations suggest a high degree of buffering of P leaching by soil P stocks influenced by long-term land use, as noted by other studies 36,37,38,39,40.

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  Selective removal of dolomite from rare earth …

  20231121 · Selective removal of dolomite from rare earth element-bearing phosphorite by flotation and leaching and the adsorption mechanism of agents on mineral surfaces. Jun Xie ... (Fap) and had a high positive correlation with phosphorus content. By adopting a new green environmental fatty acid collector GJBW and through one roughing …

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  Kinetics of leaching: a review - De Gruyter

  Kinetics, as a fundamental requirement of nearly all industrial activities and engineering researches, plays a great role in leaching processes. Although there are many pieces of research on its application, there is not a clear pathway for investigating the kinetics of leaching and researchers usually follow different strategies in their studies. The …

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  Investigation of Dissipation, Adsorption, Degradation, and Leaching …

  2015728 · Adsorption experiment has revealed that the adsorption of this pesticide to soil follows the pseudo first order kinetic model with rate constant value of 0.479/h and Freundlich isotherm with adsorption capacity of 1.832 mol/g. ... O,O-diethyl ester at retention time of 9.136 and the other is sulfotep at 14.304 min. The leaching potential of ...

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  Adsorption performance and mechanism of TiO - ScienceDirect

  2024225 · Adsorption performance and mechanism of TiO 2 /PVDF-based lithium-ion imprinted membrane in leaching solution of spent lithium-ion batteries. Author links open overlay panel Guorui Qu a b c, Jiaqi Yang a b c, Yuxuan Ran a b c, Bo Li a b c, ... The results show that the initial reaction rate of the adsorption process is relatively high, and …

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  Optimizing and evaluating the operational …

  198711 · The pH history for the high frequency leaching tests is presented in Fig. 2. The leachate pH were all initially between 10.5 and 12.0, and decreased by approximately one unit during the tests. The pH of leachates from the fly ash-based systems were ini- tially lower than those of the clay and soluble sili- cates systems, and tended to decrease ...

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  Understanding uranium behaviour in a natural rock–water …

  20171013 · Based on both chemical leaching and adsorption tests and a simple modelling using PHREEQC, geochemical behaviours of uranium during the ignimbrite–water interaction were evaluated mainly as a function of temperature, pH, and solution chemistry (esp., alkalinity). The main results of this work are: (1) uranium is more easily mobilized …

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