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Journal articles on the topic 'Leaching of trace elements'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Li, Gang, Shu Jun Cui, and Zhi Min Song. "Research on Leaching Out of Hazardous Trace Elements from Coal Gangue in Acidic Medium." Advanced Materials Research 356-360 (October 2011): 2003–6. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.2003.

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Leaching was an important way of hazardous trace elements from coal gangue causing environment pollution. Based on the leaching experiments of coal gangue from some mining area in Henan, the changing regularities of pH values and leaching contents of hazardous trace elements from coal gangue were studied. The different experiments of leaching impacted on the environmental significance of hazardous trace elements from coal gangue were probed in the paper.

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Equeenuddin, Sk Md. "Leaching of trace elements from Indian coal." Journal of the Geological Society of India 86, no. 1 (2015): 102–6. http://dx.doi.org/10.1007/s12594-015-0285-5.

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3

Đuroković, Marija, Dubravka Matković-Čalogović, and Ivan Janotka. "Mobility of Trace Elements in Pore Solutions of Portland Cement Pastes Exposed to Leaching." Croatica chemica acta 92, no. 1 (2019): 103–14. http://dx.doi.org/10.5562/cca3511.

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Two Portland cement pastes, CEM I 42.5R and CEM III/A 52.5N were exposed to leaching by soft water throughout a one–year hydration period. Mobility of trace elements was investigated by determination of their pore solution concentration in the course of time. Eleven trace elements were included in this research: antimony, arsenic, cadmium, chromium, cobalt, copper, mercury, nickel, lead, vanadium and zinc. The possible usage of the pore solution trace elements concentration in monitoring of deleterious leaching reactions and prediction of environmental risk was investigated.

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Dung, Tran, Elvira Vassilieva, Rudy Swennen, and Valérie Cappuyns. "Release of Trace Elements from Bottom Ash from Hazardous Waste Incinerators." Recycling 3, no. 3 (2018): 36. http://dx.doi.org/10.3390/recycling3030036.

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Bottom ash is the major by-product of waste incineration and can contain trace elements (As, Cd, Co, Cu, Cr, Mo, Ni, Pb, and Zn) with concentrations up to thousands of mg·k−1. In this study, a combination of different extractions and leaching tests (i.e., CH3COOH and ammonium-EDTA (Ethylenediaminetetraacetic acid) extractions and pHstat leaching tests) was used to investigate the potential release of trace elements from bottom ash samples derived from hazardous waste incineration plants. Although large variations have been found in the release of trace elements by different extractions, in gen

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Hanum, Farrah, Erda Desfitri, Yukio Hayakawa, and Shinji Kambara. "Preliminary Study on Additives for Controlling As, Se, B, and F Leaching from Coal Fly Ash." Minerals 8, no. 11 (2018): 493. http://dx.doi.org/10.3390/min8110493.

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The application of paper sludge ash as an additive in controlling the leaching of trace elements has been satisfactorily effective to date. Previous studies have found that paper sludge ash has a promising effect in controlling the leaching of arsenic, selenium and boron. The content of calcium oxide in paper sludge ash is believed to be one of the important factors in decreasing the concentration of trace elements in leachate. Therefore, this study aimed to verify the effect of paper sludge ash in the leaching process and to propose an effective and applicable suppressing material that can co

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6

Li, Rui, Prema Piyusha Panda, Yizhu Chen, et al. "Aerosol trace element solubility determined using ultrapure water batch leaching: an intercomparison study of four different leaching protocols." Atmospheric Measurement Techniques 17, no. 10 (2024): 3147–56. http://dx.doi.org/10.5194/amt-17-3147-2024.

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Abstract. Solubility of aerosol trace elements, which determines their bioavailability and reactivity, is operationally defined and strongly depends on the leaching protocol used. Ultrapure water batch leaching is one of the most widely used leaching protocols, while the specific leaching protocols used in different labs can still differ in agitation methods, contact time, and filter pore size. It is yet unclear to which extent the difference in these experimental parameters would affect the aerosol trace element solubility reported. This work examined the effects of agitation methods, filter

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Fotopoulou, M., G. Siavalas, H. İnaner, K. Katsanou, N. Lambrakis, and K. Christanis. "COMBUSTION AND LEACHING BEHAVIOR OF TRACE ELEMENTS IN LIGNITE AND COMBUSTION BY-PRODUCTS FROM THE MUĞLA BASIN, SW TURKEY." Bulletin of the Geological Society of Greece 43, no. 5 (2017): 2218. http://dx.doi.org/10.12681/bgsg.11421.

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The Muğla Basin is one of the most well-documented coal basins of Anatolia, SW Turkey. Previous studies mainly focused on coal geology, as well as on the environmental impacts from trace elements emitted into the atmosphere during coal combustion. However, the environmental impacts from coal utilization also include groundwater contamination from hazardous trace elements leached from exposed lignite stockpiles or ash disposal dumps. In the present study a comparative assessment of the combustion, as well as the leaching behaviour of trace elements from sixteen lignite, fly ash and bottom ash s

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8

Huang, Jiu, Peng Wang, Chaorong Xu, and Zhuangzhuang Zhu. "Fly Ash Modified Coalmine Solid Wastes for Stabilization of Trace Metals in Mining Damaged Land Reclamation: A Case Study in Xuzhou Coalmine Area." International Journal of Environmental Research and Public Health 15, no. 10 (2018): 2317. http://dx.doi.org/10.3390/ijerph15102317.

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In China, coalmine wastes, such as gangues, are used for reclamation of mining subsided land. However, as waste rocks, gangues contain several trace metal elements, which could be released under natural weathering and hydrodynamic leaching effects and then migrate into the reclamed soil layer. However, it is very difficult to find adequate other backfill materials for substitution of gangues. In this paper, we present a novel method and case study to restrict the migration ability of trace metal elements in gangues by using another kind of coalmine solid waste—fly ashes from coal combustion. I

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Bellache, Dihia, Karim Moussaceb, Emmanuel Jousseinn, Jean-Claude Bollinger, and Loubna Chaabane. "Behavior of metallic trace elements containing in stabilized and solidified oily petroleum sludge." Nova Biotechnologica et Chimica 18, no. 2 (2019): 154–65. http://dx.doi.org/10.2478/nbec-2019-0018.

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Abstract The present work examines the influence of the leaching conditions on the release of various chemical elements from a cementitious material obtained by solidification of an industrial waste rejection of Algeria. Toxicity Characteristic Leaching Procedure (TCLP), X-ray diffraction (XRD) and Scanning electron microscopy coupled with energy dispersive X-ray microanalysis SEM-EDX analyses were employed to characterize the waste and the stabilized/solidified materials. Than several formulations were prepared with different percent of waste ranging from 0 % to 30 %. To evaluate the influenc

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10

Yoriya, Sorachon, and Phattarathicha Tepsri. "Investigation of Metal and Trace Elements of Cenospheres from Lignite High-Calcium Fly Ash (Thailand)." Water 13, no. 20 (2021): 2935. http://dx.doi.org/10.3390/w13202935.

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High-calcium fly ashes contain a large content of small particles including cenospheres of chemical constituents known to be similar to fly ash and the parent coal. Coal fly ash contains metal and trace elements that may leach out during disposal or utilization. This work aimed to understand an overview of cenosphere characteristics relating to fly ash and leaching study. To our knowledge, this is the first report on metal and trace element leaching of cenospheres separated from high-calcium (28.9 wt.%) class C fly ash produced from the Mae Moh coal-fired thermal power plant in Thailand. In th

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11

A., K. Jain, Pandey Alok, and Kumar Adarsh. "Selective extractions for trace element determination in black shales from Dehradun area." Journal of Indian Chemical Society Vol. 90, Nov 2013 (2013): 2043–46. https://doi.org/10.5281/zenodo.5792561.

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Chemistry Laboratory, Northern Region, Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, New Delhi-110 066, India <em>E-mail</em> : adarshsadana-22@yahoo.com The study focuses on the leaching of trace elements (Co, Cr, Cu, Mo, Ni, Pb, U, V and Zn) present in black shale in Loharka, Dehradun. Samples of non-weathered, weathered and burnt black shale were chemically characterized and the potential element release from these has been assessed by using standard water-based leaching tests and leaching using acids and oxidising agents. Chemical extractions provid

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Sumit, Mishra, Singh Gurdeep, Jha Usha, and Ganguly Swastika. "Long term leaching studies on Coal Combustion Residues from Balco Captive Power Plant, Korba." Journal of Indian Chemical Society Vol. 85, Apr 2008 (2008): 429–33. https://doi.org/10.5281/zenodo.5814981.

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Centre of Mining Environment, Indian School of Mines, Dhanbad-826 004, Jharkhand, India <em>E-mail :</em> sumit_ism@yahoo.com Department of Applied Chemistry, Birla Institute of Technology, Mesra, Ranchi-835 215, Jharkhand, India <em>Manuscript received 8 August 2007, revised 7 January 2008, accepted 10 January 2008</em> The study was conducted to assess the leaching of coal combustion residues (CCRs) from Balco Captive Power Plant, Korba, India through five different standard techniques. The leaching procedures included acid digestion, short term (24-hour shake test, TCLP) and long term leach

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13

Skjennum, Karen Ane, Helen K. French, Pasquale Carotenuto, and Gudny Okkenhaug. "Combined Column Test for Characterization of Leaching and Transport of Trace Elements in Contaminated Soils." Water 15, no. 5 (2023): 874. http://dx.doi.org/10.3390/w15050874.

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Environmental assessments are required prior to remediation and redevelopment of contaminated sites. To date, regulatory guidelines are commonly based on total concentrations. Occasionally, simple leaching procedures are included in environmental assessment. Despite being essential for quantification of contaminant transport, analysis of hydraulic conductivity is rarely considered. Cost-effective methods that reflect both contaminant leaching and hydrogeological properties of contaminated soils are needed to ensure proper soil management. The aim of this study was to simultaneously evaluate co

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14

Wang, Degao, Jianwei Lu, Jian Wu, Bo Li, and Ndhlovu Kataza Nyasha. "Enrichment Characteristics of Hazardous Trace Elements in Feed Coal and Coal Ash in Huaibei Area under Leaching." Toxics 11, no. 4 (2023): 308. http://dx.doi.org/10.3390/toxics11040308.

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This research focused on the hazardous elements in the main coal seam of Huaibei coalfield, China. Through collecting 20 feed coal samples from different coal seams of nine coal mines in the region, and combining with XRF, XRD, ICP-MS, and sequential chemical extraction, the mineral composition and the contents of major elements and HEs for feed coal were analyzed. Compared with previous research results, the enrichment characteristics of HEs in feed coal were revealed. The leaching behaviors of Se, Hg, and Pb in feed coal and coal ash under different leaching conditions were analyzed in depth

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15

Kumar, Ritesh. "Comparative Study of Leachate Characteristics of Pond Ash from Long-Term Leaching and Ash Pond Disposal Point Effluent from Chandrapura Thermal Power Station, India." E-Journal of Chemistry 7, s1 (2010): S131—S136. http://dx.doi.org/10.1155/2010/496806.

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The present paper deals with the leaching characteristics of coal combustion residues from chandrapura thermal power station, Jharkhand, India. The study was made under the laboratory as well as the field condition. From the laboratory study conducted so far it is hereby concluded that the leachates of coal combustion residues from chandrapura thermal power station with respect to potentiometric and trace elements analysis are within the permissible limits as per Indian Standards (IS:2490). From the study it is also found that the elements such as arsenic, boron, nickel,etc. could not be detec

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16

KOIDE, Takao, Etsuo SAKAI, Hiroshi JINNAI, and Shigeyoshi NAGATAKI. "LEACHING OF TRACE ELEMENTS OF HARDENED MORTAR USING SILICA FUME." Cement Science and Concrete Technology 63, no. 1 (2009): 175–82. http://dx.doi.org/10.14250/cement.63.175.

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17

Popovic, Aleksandar, Dragana Djordjevic, and Predrag Polic. "Leaching of trace and major elements from coal ash dumps." Toxicological & Environmental Chemistry 75, no. 3-4 (2000): 141–50. http://dx.doi.org/10.1080/02772240009358900.

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18

Vollpracht, Anya, and Wolfgang Brameshuber. "Binding and leaching of trace elements in Portland cement pastes." Cement and Concrete Research 79 (January 2016): 76–92. http://dx.doi.org/10.1016/j.cemconres.2015.08.002.

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19

Gellein, Kristin, Trond Peder Flaten, Keith M. Erikson, Michael Aschner, and Tore Syversen. "Leaching of Trace Elements from Biological Tissue by Formalin Fixation." Biological Trace Element Research 121, no. 3 (2007): 221–25. http://dx.doi.org/10.1007/s12011-007-8051-1.

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20

Wang, Yanliang, Xiangguang Guo, Yanfeng Bi, Jia Su, Weichang Kong, and Xiaoqi Sun. "Enrichment of trace rare earth elements from the leaching liquor of ion-absorption minerals using a solid complex centrifugal separation process." Green Chemistry 20, no. 9 (2018): 1998–2006. http://dx.doi.org/10.1039/c7gc03674d.

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21

Weiler, Lia, and Anya Vollpracht. "Environmental Compatibility of Carbon Reinforced Concrete: Irrigated Construction Elements." Key Engineering Materials 809 (June 2019): 314–19. http://dx.doi.org/10.4028/www.scientific.net/kem.809.314.

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To foster a sustainable deployment of the innovative composite material ‘carbon concrete composite’ in the building sector, it is necessary to ensure its resource efficiency and environmental compatibility. The Institute for Building Materials Research of the RWTH Aachen University is therefore investigating the leaching behavior of this material, especially for the case of irrigated façade elements. Laboratory and outdoor exposure tests are run to determine and assess the heavy metal and trace element emissions by leaching. Feasible interconnections between laboratory and outdoor examination

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22

Bravo Martín-Consuegra, Sandra, Jose A. Amorós Ortíz-Villajos, Caridad Pérez-de-los-Reyes, Francisco J. García Navarro, Rolando Ruedas Luna, and Raimundo Jiménez Ballesta. "Natural Enrichment of Trace Elements in Surface Horizons of Calcareous Soils (La Mancha, Spain)." Journal of Chemistry 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/606837.

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The study of five soil profiles developed on carbonatic sediments of Tertiary Miocene origin has been carried out. The topography of the area was basically flat and the traditional uses of the soils are the cultivation of dry cereals and grapevine. The geochemical characterization of the aforementioned profiles involves a study of the contents of major and trace elements among other pedologic aspects (texture, pH, organic matter, etc.). The results of this study also indicate a superficial enrichment of trace elements due to the leaching of Ca and moderate biological and anthropic activity. We

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23

Herselman, J. E., C. E. Steyn, and H. G. Snyman. "Dedicated land disposal of wastewater sludge in South Africa: leaching of trace elements and nutrients." Water Science and Technology 54, no. 5 (2006): 139–46. http://dx.doi.org/10.2166/wst.2006.556.

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Most of the wastewater treatment facilities in South Africa (80%) dispose of their sewage sludge on dedicated land disposal (DLD) sites. The impact of this practice on the environment is believed to be negative, but very little research has been carried out to determine the extent of the damage to the soil and water resources. Forty wastewater treatment facilities using DLD, with different soil properties, application techniques, metal concentrations and period of sludge application, were studied. Soil and groundwater samples were collected at each of the selected facilities. Three extraction

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Sakai, E., M. Hisada, and T. Sugiyama. "Leaching of Trace Elements and Hydrated Products from Cement and Concrete." Concrete Journal 41, no. 12 (2003): 18–22. http://dx.doi.org/10.3151/coj1975.41.12_18.

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Shan, Yao, Wenfeng Wang, Yong Qin, and Linsheng Gao. "Multivariate analysis of trace elements leaching from coal and host rock." Groundwater for Sustainable Development 8 (April 2019): 402–12. http://dx.doi.org/10.1016/j.gsd.2019.01.001.

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Blanchard, L. J., J. D. Robertson, S. Srikantapura, and B. K. Parekh. "PIXE analysis of the hydrothermal leaching of trace elements in coal." Journal of Radioanalytical and Nuclear Chemistry 221, no. 1-2 (1997): 23–28. http://dx.doi.org/10.1007/bf02035237.

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Kero Andertun, Jakob, Pasi Peltola, Caisa Samuelsson, and Fredrik Engström. "Long-Term Leaching Effects on CaO-Modified Iron Silicate Slag." Minerals 12, no. 11 (2022): 1442. http://dx.doi.org/10.3390/min12111442.

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Granulated iron silicate slag, a by-product of pyrometallurgical copper extraction, has excellent properties for construction applications. Slag modification with CaO enhances the application properties regarding pozzolanic reactivity, potentially extending slag use in the future. The slags’ short-term leaching behavior has already been investigated with promising results, while the long-term leaching effects are less studied. Therefore, this study aims to determine the long-term leaching effects on CaO-modified iron silicate slags. The CaO-modifications were conducted during full-scale slag t

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Shaymaa Awad kadhim, Rusul A. Ghazi, kawther Hussein mohammed, et al. "Relationship of trace elements and toxic elements in humans’ health." GSC Advanced Research and Reviews 21, no. 3 (2024): 337–54. https://doi.org/10.30574/gscarr.2024.21.3.0439.

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Elements which are detected in small but not precisely known amounts in the living body were called “trace elements” in the past. Recent advances in analytical technologies, such as the development of atomic absorption spectrometry, have made it possible to measure these elements precisely and to determine their functions and the characteristics of their deficiency and excess states. The so-called vitamin boom has passed, and it now appears to be boom-time for trace elements. Nowadays, cases with trace element deficiencies are often encountered clinically, especially during high-calorie parent

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Shirchinnamjil, Nyamdelger, Narangarav Tumen-Ulzii, Nemekhbayar Davaadorj, et al. "Treatment of copper-containing leaching residue by sulfation roasting followed by acid/water leaching." Mongolian Journal of Chemistry 24, no. 50 (2023): xx. http://dx.doi.org/10.5564/mjc.v24i50.1310.

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This research investigates the extraction of copper from copper-containing leaching residue, which includes 33.45% of copper, 14.14% of iron, 23.87% of sulfur and trace amounts of silver and other elements. Roasting the copper-containing residue under air and oxygen flow convert sulfides into sulfate, followed by water and acid leaching to extract copper. The process parameters, including leaching temperature, sulfuric acid concentration, leaching time, solid-to liquid ratio, and agitation speed, were optimized for both water and acid leaching methods. Results showed that the maximum copper di

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Savenko, A. V., V. S. Savenko, and A. V. Dubinin. "Leaching of trace elements from the rocks under action of organic acids." Moscow University Bulletin. Series 4. Geology, no. 6 (December 28, 2017): 70–76. http://dx.doi.org/10.33623/0579-9406-2017-6-70-76.

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The experiments on studying leaching of trace elements (Li, Rb, Cs, Sr, Ba, V, Mn, Fe, Co, Ni, Cu, Tl, Y, La, Ce, Th, U) from unaltered ash of the Karymsky volcano (Kamchatka) under its interaction with 0.01 M solutions of oxalic, salicylic, tartaric, citric, and acetic acids at the different solid/liquid phases mass ratio were lead. Based on the obtained data it is drawn a conclusion that mobilization of trace elements occurs mainly as a result of demolition of crystal structure of rock-forming minerals, as well as (in case of oxalic acids) at reduction of Fe(III) and Mn(IV) oxyhydroxides to

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Rashid, Waleed T., Israa A. Alkadir, and Moayyed G. Jalhoom. "The Solubility of Phosphogypsum and Recovery of Heavy and Radioactive Elements." Engineering and Technology Journal 38, no. 10A (2020): 1470–80. http://dx.doi.org/10.30684/etj.v38i10a.907.

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The essential purpose of this paper is to illustrate and inspect the leaching characteristics of Iraqi Phosphogypsum (PG). The paper presents the results of the dissolution characteristics of heavy and radioactive elements from PG, which is a by-product result from the industry of phosphate fertilizers. Leachability of heavy and radioactive elements in deionized water that has been inspected under various states of leaching, including solid/liquid ratio (10, 20 and 50 /1g/L) and temperatures (25, 45 and 85 °C), with constant other parameters such as string speed (300 rpm) and contact time (60

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Kim, Jin-Seok, Nag-Choul Choi, and Ho Young Jo. "Selective Leaching Trace Elements from Bauxite Residue (Red Mud) without and with Adding Solid NH4Cl Using Microwave Heating." Metals 11, no. 8 (2021): 1281. http://dx.doi.org/10.3390/met11081281.

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Bauxite residue (red mud), which is an industrial byproduct, contains valuable trace elements. Solid NH4Cl was used as a chlorinating agent during the microwave heating of red mud to convert trace elements into soluble metal chloride. Red mud was heated using microwave ovens under various conditions (i.e., with the addition of solid NH4Cl and with a range of microwave output powers and microwave heating times). Leaching tests were then conducted using deionized (DI) water on the microwave-heated red mud to leach trace elements from red mud. V, Cr, and As were selectively leached from the micro

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Savenko, A. V., V. S. Savenko, and A. V. Dubinin. "Leaching of Trace Elements from Rocks under the Action of Organic Acids." Moscow University Geology Bulletin 73, no. 1 (2018): 66–73. http://dx.doi.org/10.3103/s0145875218010088.

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Sub-Committee on Test Methods and S. "JSCE STANDARDS “TEST METHOD FOR LEACHING OF TRACE ELEMENTS FROM HARDENED CONCRETE”." Doboku Gakkai Ronbunshuu E 62, no. 3 (2006): 587–91. http://dx.doi.org/10.2208/jsceje.62.587.

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Guijian, LIU. "Experiment of Coal Leaching and Study of the Separation of Trace Elements." Acta Geologica Sinica - English Edition 74, no. 2 (2010): 386–90. http://dx.doi.org/10.1111/j.1755-6724.2000.tb00480.x.

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Warren, C. James, and Marvin J. Dudas. "Leaching behaviour of selected trace elements in chemically weathered alkaline fly ash." Science of The Total Environment 76, no. 2-3 (1988): 229–46. http://dx.doi.org/10.1016/0048-9697(88)90110-6.

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Shah, Sanjay B., Kimberly J. Hutchison, Dean L. Hesterberg, et al. "Leaching of Nutrients and Trace Elements from Stockpiled Turkey Litter into Soil." Journal of Environmental Quality 38, no. 3 (2009): 1053–65. http://dx.doi.org/10.2134/jeq2007.0639.

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Sauer, Jacob J., Craig H. Benson, Ahmet H. Aydilek, and Tuncer B. Edil. "Trace Elements Leaching from Organic Soils Stabilized with High Carbon Fly Ash." Journal of Geotechnical and Geoenvironmental Engineering 138, no. 8 (2012): 968–80. http://dx.doi.org/10.1061/(asce)gt.1943-5606.0000653.

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Çoruh, Semra, Sermin Elevli, and Feza Geyikçi. "Statistical Evaluation and Optimization of Factors Affecting the Leaching Performance of Copper Flotation Waste." Scientific World Journal 2012 (2012): 1–8. http://dx.doi.org/10.1100/2012/758719.

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Copper flotation waste is an industrial by-product material produced from the process of manufacturing copper. The main concern with respect to landfilling of copper flotation waste is the release of elements (e.g., salts and heavy metals) when in contact with water, that is, leaching. Copper flotation waste generally contains a significant amount of Cu together with trace elements of other toxic metals, such as Zn, Co, and Pb. The release of heavy metals into the environment has resulted in a number of environmental problems. The aim of this study is to investigate the leaching characteristic

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Raimbekova, A., Sh Kubekova, V. Kapralova, et al. "ZHAYREM OVERBURDEN ACID LEACHING STUDY." Chemical Journal of Kazakhstan, no. 2 (June 30, 2025): 25–32. https://doi.org/10.51580/2025-2.2710-1185.19.

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Introduction. Most deposits of manganese ores in Kazakhstan are mined in an open way. This creates large waste dumps that are not disposed of and have a negative impact on the environment. Since these wastes contain various valuable components, they can be used as an alternative raw material source in the production of various inorganic materials. However, there is no practice of involving overburden waste in production in Kazakhstan. The purpose of this work is to study the process of leaching overburden waste from the Zhayrem deposit with various mineral acids and the possibility of using th

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Constable, Thomas W., and Geoff Ross. "Trace element leaching in bench-scale recirculating ash transport systems." Canadian Journal of Civil Engineering 13, no. 2 (1986): 233–40. http://dx.doi.org/10.1139/l86-031.

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Fly and bottom ash from coal-fired power generating stations are commonly disposed by transporting the ash in a water slurry to a lagoon. The recently developed "Environmental codes of practice for steam electric power generation" recommend the use of recycled lagoon decant water rather than fresh makeup water for these sluicing operations. To provide background information during the development of these environmental codes of practice, bench-scale studies were conducted to simulate the operation of recirculating bottom ash and combined fly/bottom ash lagoon systems, and data were collected o

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Varrica, Daniela, and Maria Grazia Alaimo. "Determination of Water-Soluble Trace Elements in the PM10 and PM2.5 of Palermo Town (Italy)." International Journal of Environmental Research and Public Health 20, no. 1 (2022): 724. http://dx.doi.org/10.3390/ijerph20010724.

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This study contributes to the current knowledge on the solubility of trace elements in the atmospheric particulate matter of the urban area of Palermo. Daily sample filters of PM10 and PM2.5 were collected in monitoring stations within and outside the urban area, characterized by variable traffic density. The bulk of compositions in PM10 and PM2.5 were determined by ICP-MS. The water-soluble trace elements (WSTE) and major ion components of particulate matter were determined by ICP-MS and ion chromatography, respectively. A significant difference in the metals content was observed between the

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Savenko, A. V., and V. S. Savenko. "Effect of natural organic acids on mobilization of macro- and microelements from rocks." Доклады Академии наук 485, no. 3 (2019): 351–55. http://dx.doi.org/10.31857/s0869-56524853351-355.

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Experimental study of leaching of the main cations (Na, K, Mg, and Ca), alkaline and alkaliearth microelements (Li, Rb, Cs, Be, Sr, and Ba), heavy metals (Mn, Fe, Co, Ni, Cu, Zn, Cd, Tl, and Pb), hydrolyzate elements (Y, RZ, Ti, Th, and U), and anionic elements (F, Si, P, and V) from rocks of different acidity with distilled water and a multicomponent solution of organic acids, having the distribution of dissociation constants corresponding to natural dissolved organic matter was carried out. It has been shown that carboxylic acids, which are part of the dissolved organic matter contained in s

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Solouki, Abbas, Alireza Fathollahi, Giovanni Viscomi, et al. "Thermally Treated Waste Silt as Filler in Geopolymer Cement." Materials 14, no. 17 (2021): 5102. http://dx.doi.org/10.3390/ma14175102.

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This study aims to investigate the feasibility of including silt, a by-product of limestone aggregate production, as a filler in geopolymer cement. Two separate phases were planned: The first phase aimed to determine the optimum calcination conditions of the waste silt obtained from Società Azionaria Prodotti Asfaltico Bituminosi Affini (S.A.P.A.B.A. s.r.l.). A Design of Experiment (DOE) was produced, and raw silt was calcined accordingly. Geopolymer cement mixtures were made with sodium or potassium alkali solutions and were tested for compressive strength and leaching. Higher calcination tem

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Xu, Bing, Lun Jian Chen, Bao Lin Xing, Gui Yun Yi, and Long Li. "Experimental Study on the Environmental Behaviors of Poisonous Trace Elements in Post-Gasified Residues." Advanced Materials Research 805-806 (September 2013): 1478–83. http://dx.doi.org/10.4028/www.scientific.net/amr.805-806.1478.

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Pyrolysis chars at 500°C, 700°C, 900°C and coal combustion ashes were prepared to simulate the three zones residues of underground coal gasification. The contents of trace elements in solid residues, such as chromium, manganese, arsenic, cobalt, nickel and lead, were determined by using inductively coupled plasma mass spectroscopy (ICP-MS) and the enrichment factors were also calculated. By immersing the pyrolysis chars and coal combustion ashes in weakly acidic leaching liquid (pH=4, 5, 6), the leaching features of above trace elements and their potential threat on groundwater were characteri

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Georgaki, Maria Nefeli, Nikolaos Kantiranis, Christina Mytiglaki, and Dimitrios Vogiatzis. "Effect of Specified pH Conditions on Leaching of Environmentally Important Major and Trace Elements from Fly Ash-Marl Mixtures: A Case Study of the Lignite Center of W. Macedonia." European Journal of Environment and Earth Sciences 5, no. 5 (2024): 1–15. http://dx.doi.org/10.24018/ejgeo.2024.5.5.472.

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Significant environmental issues concerning the risk of soil, surface, and groundwater pollution are indicated by the presence of dissolved elements in the leachates. In the Lignite Center of Western Macedonia, the current study investigates the leaching behavior of main and trace elements from fly ash-marl mixtures, focusing on the effect of pH conditions on environmental impacts. Five mixtures of fly ash-marl were prepared in different percentage ratios by weight, simulating the possible deposition conditions to investigate the leaching of their contents in specified pH conditions. Initial f

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Terzic, Anja, Zagorka Radojevic, Ljiljana Milicic, Ljubica Pavlovic, and Zagorka Acimovic. "Leaching of the potentially toxic pollutants from composites based on waste raw material." Chemical Industry and Chemical Engineering Quarterly 18, no. 3 (2012): 373–83. http://dx.doi.org/10.2298/ciceq111128013t.

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The disposal of the fly ash generated in coal based power-plants may pose a significant risk to the environment due to the possible leaching of hazardous pollutants, such as toxic metals. Also, there is a risk of leaching even when fly ash is built-in the construction composites. Fly ashes from various landfills were applied in several composite samples (mortar, concrete and brick) without any physical or thermal pre-treatment. The leachability of the potentially toxic pollutants from the fly ash based products was investigated. The leaching behavior and potential environmental impact of the 1

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Sheppard, S. C., C. A. Grant, and C. F. Drury. "Trace elements in Ontario soils - mobility, concentration profiles, and evidence of non-point-source pollution." Canadian Journal of Soil Science 89, no. 4 (2009): 489–99. http://dx.doi.org/10.4141/cjss08033.

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Agricultural soils are the recipients of trace elements from general atmospheric pollution and from agricultural inputs such as fertilizer, feeds and urban biosolids. These input fluxes are usually small, and there are processes such as leaching and crop off-take to counterbalance the trace element inputs. Thus, it is difficult to evaluate the changes of trace element concentrations in agricultural soils. This paper examined a survey of 59 soil profiles in Southern Ontario, combining analysis of ~50 elements in three soil depths and corresponding measurements of the soil solid/liquid partition

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Firsova, L. P. "Slowed leaching of bioactive trace elements (cobalt, copper, and molybdenum) from granulated phosphogypsum." Moscow University Chemistry Bulletin 63, no. 4 (2008): 224–26. http://dx.doi.org/10.3103/s0027131408040111.

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Yu, Z., L. Zhang, P. Jiang, C. Papelis, and Y. Li. "Study on Water-Rock Interactions of Trace Elements in Groundwater with Leaching Experiments." Groundwater 53, S1 (2014): 95–102. http://dx.doi.org/10.1111/gwat.12182.

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