• Lead contamination of soils and vegetation in the vicinity

    · Keywords: Lead contamination; Lead smelter; Nigeria; Critical toxic levels; Waste disposal 1 Introduction This study is part of an investigation into the possible environmental contamination resulting from major mining activities in Nigeria The smelting factory under study was commissioned * Corresponding author early in this century for the smelting of tin from cassiterite ore Previous

  • Cited by: 53
  • A review on lead slag generation, characteristics, and

    · At present, lead slag is mainly used in rough disposal, such as landfill and stockpiling, which requires extensive land According to statistics, the accumulation of 10,000 t of waste residue will need to account for more than 670 m 2 of land ()Lead slag contains certain highly migratory toxic elements, such as lead, zinc, and cadmium (Seignez et al, 2008)

  • Cited by: 20
  • Utilization of secondary lead slag as construction material

    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 concrete blocks

  • A Study into the Use of Recycle Iron and Steel Slag as an

    2013) therefore, the industrial production of iron and steel in Nigeria stood at 191052 million tonnes per year using the capacity utilization of 549% released by the Central Bank of Nigeria (CBN, 2016) Iron and steel slag production in Nigeria was estimated at 029 tons per

  • Author: Olowu Oluwaleke Adekunle, Akerele Adebimpe Omorinsola, Akinsanya Akinwale Nurudeen, Akinsanya Abiodu
  • Waste solidification/stabilization of lead–zinc slag by

    immobilize lead–zinc slag containing Pb, Ni, Zn and Mn A fly ash based geopolymer with good mechanical strength was obtained through single factor experiments and the compressive strength of the geopolymer reached 2972 MPa The effects of immobilizing lead–zinc slag in the fly ash based geopolymer were discussed by means of compressive strength, leaching test and speciation analysis

  • Cited by: 10
  • (PDF) Lead, Cd, Cu and Zn levels in forage grasses

    The possibility of using phosphate chemicals to reclaim a grossly leadcontaminated site was explored The study site was an abandoned leadacid battery waste dumpsite in Nigeria Phosphate

  • A Study into the Use of Recycle Iron and Steel Slag as an

    2013) therefore, the industrial production of iron and steel in Nigeria stood at 191052 million tonnes per year using the capacity utilization of 549% released by the Central Bank of Nigeria (CBN, 2016) Iron and steel slag production in Nigeria was estimated at 029 tons per

  • Stabilisation of Pb in Pb Smelting SlagContaminated Soil

    slag (LSS)contaminated soil in Nigeria The effectiveness was measured using CaCl 2 batch leaching experiment, yield and Pb uptake by maize plant 2 Materials and Method 21 Soil Collection The soil sample for this study was randomly collected from an abandoned lead smelting slag contaminated site in Ibadan, Nigeria The site lies between longitude 7˚24'N and latitude 4˚00'E at an elevation of 174 m

  • Assessment of Soilpollution by slag from an automobile

    Slag from ABMC has been reported in Nigeria to contain about 6% upwards of lead (Basel Convention, Nigeria, 2004) Slag is a byproduct formed from thermal reduction of metallic ores in the smelting plant This term is also applied to similar materials produced in other operations like coal combustion, incineration, industrial waste

  • Ecotoxicity assessment of slag generated in the process

    · The recently extracted slag presents a highly alkaline initial pH value of around 13, which is logical if we take into account the fact that this sample corresponds to slag recently obtained in the recycling process of lead and that it contains high levels of sodium carbonate This pH value would be sufficient in itself to characterise the waste as toxic and is undoubtedly responsible for the

  • ASSESSMENT OF STEEL SLAG AS REPLACEMENT FOR COARSE

    In Nigeria and many countries of the world, steel is mainly produced from smelting of m etal scrap metals and hundreds of tonnes of steel slag are produced every year And most often, steel slag are disposed around the steel producing centres posing environmental threats However, not much research work has been reported on the use of steel slag

  • Immobilisation of lead smelting slag within spent

    · Production of lead results in considerable amounts of waste slags, called lead smelting slag (LSS) The LSS in this work originated from the manufacturing of lead from both lead concentrates and recycled car batteries to produce new car batteries For each ton of metallic lead produced, 100–350 kg of slag is generated that contains approximately 5% of lead compounds , Apart from Pb, these

  • Lead smelting Wikipedia

    The lead slag stream, containing most of the 'fluxing' elements added to the sintering machine (predominantly silica, limestone, iron and zinc) can either be discarded or further processed to recover the contained zinc The crude lead bullion, containing significant quantities of copper will then undergo 'copper drossing' In this step elemental sulphur, usually in solid form is added to the molten crude lead

  • EFFECT OF STEEL SLAG ON ENGINEERING PROPERTIES OF

    Steel slag is a byproduct produced during the conversion of iron ore or scrap iron to steelWith rapid growth of steel production over the world, steel slag, as a byproduct of steel production, has now been produced quite fast Now the total amount of steel slag produced in China is around 1

  • Lead Waste Slag Usage Of India

    Lead Waste Slag Usage Of India Lead has been mined in much of europe for centuries and even in the last century lead production in britain germany and spain was significant pulsifer 1888 however in most of the region economic reserves have been exhausted at present the main lead mining countries are china australia usa peru canada mexico and [ protected] Send Message Get a Quote News

  • Assessment of Soilpollution by slag from an automobile

    Slag from ABMC has been reported in Nigeria to contain about 6% upwards of lead (Basel Convention, Nigeria, 2004) Slag is a byproduct formed from thermal reduction of metallic ores in the smelting plant This term is also applied to similar materials produced in other operations like coal combustion, incineration, industrial waste

  • Stabilisation of Pb in Pb Smelting SlagContaminated Soil

    slag (LSS)contaminated soil in Nigeria The effectiveness was measured using CaCl 2 batch leaching experiment, yield and Pb uptake by maize plant 2 Materials and Method 21 Soil Collection The soil sample for this study was randomly collected from an abandoned lead smelting slag contaminated site in Ibadan, Nigeria The site lies between longitude 7˚24'N and latitude 4˚00'E at an

  • Immobilisation of lead smelting slag within spent

    · Production of lead results in considerable amounts of waste slags, called lead smelting slag (LSS) The LSS in this work originated from the manufacturing of lead from both lead concentrates and recycled car batteries to produce new car batteries For each ton of metallic lead produced, 100–350 kg of slag is generated that contains approximately 5% of lead compounds , Apart from Pb, these

  • Ecotoxicity assessment of slag generated in the process

    · The recently extracted slag presents a highly alkaline initial pH value of around 13, which is logical if we take into account the fact that this sample corresponds to slag recently obtained in the recycling process of lead and that it contains high levels of sodium carbonate This pH value would be sufficient in itself to characterise the waste as toxic and is undoubtedly responsible for the

  • Remediation of contaminated sites with cement

    Limestone can also be used to adjust pH levels Slag is often used for economical purposes because of its low cost Different methods In situ In situ is a Latin phrase meaning “in the place” When referred to chemistry or chemical reactions it means “in the reaction mixture” In situ S/S, accounting for 20% of S/S projects from 1982–2005, is used to mix binding agents into the

  • Advances in slag recycling and reuse UKEssays

    The major waste by product from steel production is slag at 7915% as shown in 1 Steps have been taken all over the world to generate new ways of recycling or to reuse slag material Advances have made it plausible to separate metallic scrap and lime in the slag Slag has been considered as an alternative for submerged arc welding flux and even used for construction materials The slag

  • EFFECT OF STEEL SLAG ON ENGINEERING PROPERTIES OF

    Steel slag is a byproduct produced during the conversion of iron ore or scrap iron to steelWith rapid growth of steel production over the world, steel slag, as a byproduct of steel production, has now been produced quite fast Now the total amount of steel slag produced in China is around 1 billion tons However, such a waste of steel slag could lead to not only the loss of money but also

  • Special Wastes | Hazardous Waste | US EPA

    · Mining waste is one type of special waste When EPA proposed regulations for managing hazardous waste under Subtitle C of Resource Conservation and Recovery Act (RCRA) on December 18, 1978 (43 FR 58946), the agency deferred hazardous waste requirements for six categories of waste—which EPA termed “special wastes”—until further study and assessment could be completed

  • Tailings Wikipedia

    Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an oreTailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed The extraction of minerals from ore can be done two ways: placer mining, which uses water

  • Lead Dust, Lead Slag | TradeKey

    Lead dust, Lead slag Precise Int'l (HK ) Ltd is a leading importer of lead slag from China

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