Leaching properties of secondary lead slag stabilized/solidified
2013.1.1 Secondary alkaline lead slag (SALS), generated during lead–acid batteries recycling, is a hazardous waste due to its high reactivity, solubility, and migration of toxic elements.
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LEACHING PROPERTIES OF SECONDARY LEAD SLAG STABILIZED
Secondary lead slag is characterized as hazardous waste in European Waste Catalogue due to content of hazardous substances in concentrations that higher than those allowed
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Utilization of secondary lead slag as construction material
2005.6.1 Secondary lead slag, a waste product from battery smelting using CaCO 3 as flux, has been investigated for its use as an admixture and/or aggregate in
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Utilization of secondary lead slag as construction material
2005.6.1 Secondary lead slag, a waste product from battery smelting using CaCO 3 as flux, has been investigated for its use as an admixture and/or aggregate
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Reuse of secondary lead smelter slag in the manufacture of
2000.1.1 A secondary lead smelter slag has been used in a cement based stabilization/solidification process for the manufacture of concrete blocks. The influence
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A review on lead slag generation, characteristics, and
2019.7.1 The secondary lead slag has been used in a cement-based stabilization/solidification process for the preparation of concrete (Cioffi et al., 2000). The
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Utilization of secondary lead slag as construction material,Cement
Abstract Secondary lead slag, a waste product from battery smelting using CaCO3 as flux, has been investigated for its use as an admixture and/or aggregate in the production of
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A review on lead slag generation, characteristics, and utilization
2019.7.1 Lead slag is produced by the primary and secondary lead industry. The large amount of lead slag discharge causes environmental problems. Reducing the
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Assessment of Leaching Characteristics of Solidified Products ...
Results of the TCLP and NEN 7375 tests showed that secondary lead slag could be used as a component in concrete production, but only with careful control of the solidification
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LEACHING PROPERTIES OF SECONDARY LEAD SLAG STABILIZED
2013.1.1 Sodium lead slag, generated during secondary lead production, is characterized as hazardous waste. The aim of the study was to investigate leaching
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A review on lead slag generation, characteristics, and utilization
2019.7.1 Utilization of granulated lead slag as a structural material in roads constructions. AbstractPyrometallurgical processing of lead ores generates large amounts of slag which is stockpiled as chunk or granules. Romanian dump heaps of such slag produced in the period 1972–1998, occupy.
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Utilization of secondary lead slag as construction material
2005.6.1 Secondary lead slag, a waste product from battery smelting using CaCO 3 as flux, has been investigated for its use as an admixture and/or aggregate in the production of concrete blocks. The slag was added as partial replacements of cement and/or aggregate. The results revealed that the oxide components of the slag were similar to
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Sustainable and Comprehensive Utilization of Copper Slag: A
2023.4.21 Annually more than 400 Mt of metallurgical slags are produced worldwide [1,2,3,4,5].From the annual Cu concentrate smelter production capacity, which is equal to around 21 Mt of copper metal in 2021, it can be estimated that more than 45 Mt of CUS were produced from primary sources assuming a slag to copper ratio of 2.2 [3, 4].Only 15% of
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Cement substitution with secondary materials can reduce annual
2022.9.30 In this paper we report the maximum potential for cement substitution with secondary materials to reduce CO2 emissions globally (1.3 Gt CO2-eq. in 2018) and on a country-by-country basis.
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Cement - Wikipedia
Slag-lime cements —ground granulated ... Nickel, zinc and lead are commonly found in cement in non-negligible concentrations. Chromium may also directly arise as natural impurity from the raw materials or as secondary contamination from the abrasion of hard chromium steel alloys used in the ball mills when the clinker is ground.
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Leaching properties of secondary lead slag stabilized/solidified
Sodium lead slag, generated during secondary lead production, is characterized as hazardous waste. The aim of the study was to investigate leaching mechanism and behaviour of lead and arsenic from sodium lead slag previously stabilized/solidified in concrete using additives: MgO, CaO, Ba(OH)2 and gypsum. The influence of selected
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Enhancement of cement-based solidification/stabilization of a lead
2021.2.5 In this study, ternary industrial waste comprising red mud, carbide slag and phosphogypsum was combined with cement to act as a curing agent for the remediation of Pb 2+-contaminated soil.The mixing proportions of the four materials were determined based on the resulting mechanical and permeability properties as well as the pH and leached
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LEACHING PROPERTIES OF SECONDARY LEAD SLAG STABILIZED
2013.1.1 Sodium lead slag, generated during secondary lead production, is characterized as hazardous waste. The aim of the study was to investigate leaching mechanism and behaviour of lead and arsenic from ...
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Waste management strategies for cleaner recycling of spent
2019.3.4 The secondary lead produced from spent lead-acid batteries by recycling process has gradually become the major source of lead market in many countries (Ellis and Mirza 2010). In a typical spent lead-acid battery, lead paste is consisting 24–30% of total weight and is composed of PbSO 4 (~ 60%), PbO 2 (~ 28%), PbO (~ 9%) and a small
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A Critical Review on Generation, Characteristics, and Utilization of ...
2020.1.25 Zinc smelting slag is generated by the zinc pyrometallurgical process. In general, total contents of zinc and lead of the zinc smelting slag are about 5–15%, while the contents of rare and noble metals are very low [].Therefore, it is not economic for the recovery of valuable metals from the zinc smelting slag by the traditional
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Slag - Wikipedia
Molten slag is carried outside and poured into a dump. Slag is a by-product of smelting (pyrometallurgical) ores and recycled metals. Slag is mainly a mixture of metal oxides and silicon dioxide.Broadly, it can be classified
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A review on lead slag generation, characteristics, and utilization
2019.7.1 The hydration of blended cements with up to 70 wt% iron-rich slag was investigated. Isothermal calorimetry revealed a retarding effect of the slag on Portland cement hydration during the first day ...
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IJERPH Free Full-Text Assessment of Leaching
2019.6.5 Secondary alkaline lead slag is a hazardous waste generated in the recycling process of lead-acid batteries that may be suitable in construction materials. ... According to these results, the
Charlar en LíneaSeparation of heavy metals from hazardous lead slag by
2021.12.1 To solidify the heavy metals in the lead slag, the main method involved using this slag as a raw material to produce cement mix (Saikia et al., 2012), glass-ceramics (Pan et al., 2018) and building materials (Albitar et al., 2015, Alwaeli, ... Utilization of secondary lead slag as construction material. Cem. Concr. Res. (2005)
Charlar en LíneaComprehensive utilization of steel slag: A review - ScienceDirect
2023.5.15 1. Introduction. Steel slag is the main solid waste generated in the steel-making process, accounting for 15 to 20% of crude steel output [1].China's crude steel output in 2021 was 1.035 billion tons [2], more than half of the global crude steel output (1.9505 billion tons) [3], and the steel slag output exceeded 120 million tons.In contrast,
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A review on lead slag generation, characteristics, and utilization
2019.6.30 Lead slag is produced by the primary and secondary lead industry. The large amount of lead slag discharge causes environmental problems. Reducing the toxicity and increasing utilization of lead slag are important measures to solve the negative impact of lead slag on the environment. Here, we review the lead slag physical and chemical
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Sustainability Free Full-Text The Production of Sustainable
2020.9.24 Concrete still represents one of the most relevant and used materials in the building industry, as it can be considered “the second most consumed substance on Earth after water” [].The production process is related to a significant carbon footprint, around 850 kg of CO 2 emitted per ton of clinker [], mainly due to the production of cement that
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Assessment of the long-term leaching characteristics of cement-slag
2021.3.1 For the bulk value-added utilization of electrolytic manganese slag (EMR), AC regulation technology for the early hydration of cement-solidified electrolytic manganese slag (CSE) may be the answer. TG, XRD, and ICP analyses were used to evaluate changes brought about by AC in the early solid phase and the aqueous species of the cement
Charlar en LíneaImpact of waste slag reuse on the sustainability of the secondary lead ...
2021.4.1 However, although secondary lead production processing requires less energy, and creates fewer pollutants than primary lead, it continues to be the source of direct and indirect heavy metal emissions due to high-temperature smelting. Particularly, the long-term accumulation of lead pollutants in the waste slag will lead to environmental
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Scientific Research Center, Veliki Park 1, 31000 Uzice, Serbia
secondary lead metallurgical slag can be used as inert materials in a cement mortar PROOF Kneževi ć et al- Possibility of secondary lead slag stabilization in concrete...
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