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33 articles for “Leaching”
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Research ArticleOpen accessEvery word in the titleLeaching of a Nigerian Refractory Gold Ore Using Aqua RegiaOluwasanmi Samuel Teniola, Abraham A. Adeleke, Simeon Ademola Ibitoye, Moshood Deinde ShituIn this research, refractory gold ore from Imogbara deposit in Iperindo area of Osun state Nigeria were collected systematically from various segments of the deposits at different depths to obtain a set of samples that truly represent the deposits. The 50 kg sample collected was subjected to panning in a flowing river to obtain about 1 kg-upgraded sample. The upgraded … …American Journal of Engineering and Applied Sciences, Vol. 15, Issue 1 · 13 Mar 2022 · 7,457 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSorption Extraction of Noble and Non-Ferrous Metals from Process Leaching SolutionsBagdaulet Kenzhalyevich Kenzhaliyev, Renata Ramilevna Iskhakova, Zamzagul Duisenovna DosymbayevaIn view of the annual increase in ore processing output for low grade or refractory gold-bearing ores, as well as recoverable raw materials, stricter requirements for completeness of gold extraction and environmental safety, the interest is rising in possible alternatives to substitute the cyanide process used in gold mining practice. One of such alternatives is to convert metals into solutions … …American Journal of Applied Sciences, Vol. 12, Issue 11 · 18 Nov 2015 · 7,050 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleFUNGAL LEACHING OF IRON ORE: ISOLATION, CHARACTERIZATION AND BIOLEACHING STUDIES OF PENICILLIUM VERRUCULOSUMNeha Chaudhary, Trina Banerjee, Neha Ibrahim, G. SibiPyrometallurgical and hydrometallurgical technologies for recovery of metals from low grade ores require high energy and capital costs. Use of microorganisms in leaching of mineral ores is gaining importance due to the implementation of stricter environmental rules. Microbes convert metal compounds into their water soluble forms and are biocatalysts of leaching processes. This study was performed to isolate and characterize … …Current Research in Microbiology, Vol. 5, Issue 1 · 25 Sep 2014 · 7,999 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of N and K Fertilizers on Nutrient Leaching and Groundwater Quality under Mature Oil Palm in Sabah during the Monsoon PeriodPetronella G. Ah Tung, Mohd Kamil Yusoff, Nik Muhamad Majid et al.Problem statement: The oil palms are mainly grown in the humid tropics with high rainfall. Soluble Nitrogen (N) and Potassium (K) fertilizers are commonly required by the oil palm plantations to maximize palm productivity due to the highly weathered soils with low fertility. Thus, leaching losses of N and K nutrients may be unavoidable and these nutrients may move further … …American Journal of Applied Sciences, Vol. 6, Issue 10 · 31 Oct 2009 · 10,143 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleInvestigating the Effect of Three Nitrate Fertilizers on Nitrate Leaching under the Root Zone in Clay Loam SoilThamer Ahmed Mohammed, M. Nooshin, Megat Johari Megat Mohd. Noor, A. LiaghatProblem statements: Nitrogen fertilizer is recognized as an important factor in crop’s yield level, however more application of N fertilizers in the soil have some adverse effects on environment and especially on groundwater contamination. Perception and recognition the factors influencing nitrate transport through soil profile is helpful for fertilizer management to minimize adverse impacts on environment and nitrate leaching below … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 7,064 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleResearch of the Interacting Process of Copper-Base Alloys with Leaching Solutions under the Action of Different Physicochemical FactorsBagdaulet Kenzalyevich Kenzhaliyev, Ainur Nurkalyevna Berkinbayeva, Rustam Hasanovich SharipovAnalysis of the current scientific and technical data shows the increased difficulty in innovative solutions development for metal extraction from different kinds of mineral raw materials, due to fundamental change in mineral resources base of metallurgy. Apart from polymetallic ores, complex in chemistry and intractable, the basis for the current mineral resources base is formed by technogenic production waste, so-called … …American Journal of Applied Sciences, Vol. 12, Issue 12 · 2 Dec 2015 · 6,708 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleBiocompatibility of Orthodontic Resins: In vitro Evaluation of Monomer Leaching and Cytotoxic EffectsRoberto Uomo, Gianrico Spagnuolo, Giuseppina Nocca et al.The aim of this study was to investigate the effect of orthodontic resins on cell survival and to evaluate monomer leaching both before and after resin polymerization. Materials and methods: 3T3 mouse fibroblasts were exposed to three cured and uncured orthodontic resins. Cellular viability was assessed by Alamar Blue assay after 24, 48 and 72 h. High Performance Liquid Chromatography … …Current Research in Dentistry, Vol. 8, Issue 1 · 7 Jul 2017 · 16,333 accessesView PDFCite
Research ArticleOpen accessIn the keywordsReclamation of Irrigated Lands and Improvement of the Groundwater Regime Under Vertical Drainage OperationBalzhan Amanbayeva, Raushan Dzhaisambekova, Alexander Basmanov et al.The aim of the study was to identify patterns of seasonal groundwater-level fluctuations and assess the effectiveness of vertical drainage in regulating the reclamation regime of saline lands in Kazakhstan. The methods included monitoring-well observations, calculation of seasonal amplitudes, Student’s t-test, the Mann-Whitney U test, and Pearson correlation analysis. Before the growing season, groundwater occurred at a depth of 1.5-1.7 … …OnLine Journal of Biological Sciences, Vol. 26, Issue 4 · 23 Sep 2026 · 608 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffects of Different Extraction Methods on the Quality of Peony Seed Oil and Its Emulsion PropertiesKang Li, Chao Du, Shuxian Pang et al.Peony seed oil, as a functional oil rich in ω-3 polyunsaturated fatty acids and natural antioxidant components, has its extraction process directly affecting the maintenance of bioactive substances and the added value of the product. In this analysis, the effects of wet milling-micronized continuous leaching method (MCI), solvent extraction (SE), soxhlet extraction (SOXE) and ethanol-assisted enzymatic hydrolysis (EAH) on the … …American Journal of Biochemistry and Biotechnology, Vol. 21, Issue 3 · 28 Jan 2026 · 1,955 accessesView PDFCite
Research ArticleOpen accessIn the keywordsFormation of Vegetation Cover and Soil Quality Indicators at the Mine Sites of a Gold-Bearing Deposit (the Case of Kara-Agash, Kazakhstan)Vadim Chashkov, Aliya Bugubaeva et al.At present, the processes of natural recovery, vegetation coverage, and degraded lands of several coal, iron ore, uranium, and polymetallic mines and gold-bearing deposits are well-studied. The present study aims to identify opportunities to shape the soil layer and vegetation cover on reclaimed dumps/tailings of industrial waste and degraded land via artificial restoration. For this purpose, in July 2023, studies … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 16 Sep 2024 · 4,765 accessesView PDFCite