direct factory leaching and adsorption in uganda

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  Adsorption–desorption, persistence and leaching behavior of ...

  2004111 · The adsorption–desorption studies were carried out using batch equilibration technique. The results revealed high but weak adsorption of thifluzamide in alluvial soil with K F value of 9.62 and ‘n’ value of 0.63. About 47–62% of the adsorbed amount got desorbed in four desorption cycles, which further substantiate the hypothesis …

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  Pesticide biology in soil: Sorption, leaching, and accumulation

  202411 · Further, their other direct or indirect effects on such nontarget organisms may lead to ecosystem imbalances (Liu et al., 2016; Rosell et al., 2008). ... Degradation, adsorption and leaching of phenazine-1-carboxamide in agricultural soils. Ecotoxicology and Environmental Safety, 205 (2020), Article 111374.

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  Phthalocyanine blue leaching and exposure effects on …

  202455 · FT-IR analysis of the MPs revealed significant variations before and after photoaging (Fig. 1).The absorbance peaks at 2923 cm −1 and 2849 cm −1 corresponded to the asymmetric and symmetrical stretching vibrations of the hydrocarbon bonds of the polystyrene methylene group, respectively. The peaks observed at 3082 cm −1, 3059 cm …

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  Enhanced specific absorption rate in silanol ... - ScienceDirect

  2014101 · Water dispersible Fe 3 O 4 –SiO 2 shows high SAR value in AC magnetic field and less leaching of Fe in pH = 2–7.. Effect of surface coating on specific absorption rate (SAR) under alternating magnetic field (AMF) is investigated. • Cells treated with MNPs along with induction heating show decrease in viability as compared to that without …

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  Effect of an arbuscular mycorrhizal fungus on maize

  2021121 · The ecological role of arbuscular mycorrhizal fungi (AMF) on altering cadmium (Cd) migration in polluted soil is still unresolved. The present experiment aimed to clarify whether AMF can reduce Cd loss due to leaching at different Cd concentrations (0, 5, 10, and 15 mg L −1) with maize as a host plant cultured in a sand column.The effects of …

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  Effect of calcium leaching on the characteristics of chloride …

  202381 · Section snippets Experiment preparation. Experiment name: isothermal adsorption and desorption of chloride ion by hardened cement paste at different degree of calcium leaching.. Main materials: Ordinary Portland cement, deionized water, sodium chloride (NaCl), calcium hydroxide (CH) and ammonium nitrate (NH 4 NO 3).. Preparation …

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  Direct Detection of Fe(II) in Extracellular Polymeric ... - PubMed

  We herein investigated the mechanisms underlying the contact leaching process in pyrite bioleaching by Acidithiobacillus ferrooxidans using scanning transmission X-ray microscopy (STXM)-based C and Fe near edge X-ray absorption fine structure (NEXAFS) analyses. ... Direct Detection of Fe(II) in Extracellular Polymeric Substances (EPS) at the ...

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  Insight into leaching of rare earth and aluminum from ion adsorption ...

  202391 · The adsorption ability of cations on kaolin decreases in the order of La 3+, Y 3+, Al 3+, Mg 2+, and NH 4 +.The desorption of rare earth and aluminum is positively affected by the concentration-driving force exerted by high concentrations of Mg 2+ and NH 4 +.However, clay aggregation will result in lower desorption efficiencies of rare earth and …

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  Simultaneous adsorption of V (V) in both anionic and …

  202281 · In this experiment, the effect of different initial pH values on the adsorption of CH-90 resin was studied at an adsorption temperature of 25 ℃, the volume ratio of resin to acid leaching solution of 1:5, adsorption time of 2 h, and the results are shown in Fig. 2.

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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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