bioleaching of zinc and iron from steel plant waste using

(PDF) Bioleaching of Mining Waste of Hindustan Zinc

Analyses:Periodic analysis of pH, Eh, iron and zinc were done by standard methods. Eh and pH were measured by pH/Eh meter JENWAY, model 3505, [377]using redox platinum electrode (924003) and combined pH electrode (924001). Iron was analysed by KMnO4 titration method after reducing with stannous chloride [2].

(PDF) c11.pdf Dr Abhilash -

Its expanded capacity was 5 Mtpa in 2007, and is poised for further expansion to 6 Mtpa by 2013. The mine presently has ore beneficiation plant generating 3.7 Mt of tailings per year, with a stock of 24.6 million Mt as dense slurry. The average composition is 1.5-2.5% Zn, 10% Fe, and 25 ppm Ag. Bio-Nanoparticles:Biosynthesis and Sustainable 11.3.1 Bioleaching of Zn from Copper Mining Residues by Aspergillus niger 233. 11.3.2 Bioleaching of Zinc from Steel Plant Waste using Acidithiobacillus ferrooxidans 234. 11.3.3 Bacterial Leaching of Zinc from Chat (Chert) Pile Rock and Copper from Tailings Pond Sediment 234. 11.3.4 Dissolution of Zn from Zinc Mine Tailings 234

Bioleaching of metals from wastes and low-grade sources by

Jan 01, 2020 · Bioleaching of electronic scrap was performed by Acidithiobacillus thiooxidans (ATCC8085) as a mesophilic microorganism (Hong and Valix, 2014). Zinc extraction was achieved over 80% in less than 100 h via bioleaching of zinc sulfide ores using Acidithiobacillus sp. as a mesophilic microorganism at 1% pulp density (Pina et al., 2005). Closed-Loop Recycling of Copper from Waste Printed Circuit Jun 29, 2020 · A comparative study between bioleaching and hydrometallurgy processes, regarding their environmental impact for copper and zinc recovery from PCBs confirmed that of all recycling methods applied to metal treatment, bioleaching, which uses bacteria to recover metals from a solid matrix, remains the most sustainable method for metal recovery from WEEE; bioleaching has 0.4 kg CO 2eq

Impact of Pulp Density on Extraction of Metals, By

  • AbstractIntroductionMaterials and MethodsResultsDiscussionConclusionsAcknowledgementsReferencesMineral ores are the non-renewable resources of various metals. The extraction of metals is done only from the Ist and IInd grade ore particles and rest is left as such because of low metal content. Bacteria are the miraculous organisms as it can be used for the complete extraction of metals. In the present experiment, we have used the bacterium Acidithiobacillus ferrooxidans and Pseudomonas fluorescens as a bioleaching agent for iron and aluminum attribution from low grade bauxite ore collectMetal reclamation and recycling of electronic waste
    • Materials InvolvedCurrent SolutionsProposed SolutionProgress Towards A Sustainable FutureThere are a wide variety of materials involved in the multitude of items that can be classified as electronic waste. Each component adds to the complexity of any recycling effort. Below is an exploration of a number of the most common components, by weight.Applying an ex-ante life cycle perspective to metal Aug 15, 2016 · Applying an ex-ante life cycle perspective to metal recovery from e-waste using bioleaching. They use iron and sulphur by a special metabolic route as a source of energy (Brandl, 2001). the amount of PCB processed was increased in steps of 2.5% from 1% to reach the 10% for which the model bioleaching plant was designed. Integrated bioleaching of copper metal from waste printed Sep 28, 2016 · Hong Y, Valix M (2014) Bioleaching of electronic waste using acidophilic sulfur oxidizing bacteria. J Clean Prod 65:465472. CAS Article Google Scholar Hong HC, Su C, Jadhav UU (2014) Bioleaching of metals from steel slag by Acidithiobacillus thiooxidans culture supernatant. Chemosphere 117:652657

      Investigation of Acidithiobacillus ferrooxidans in pure

      Abstract Aims The aim of this study was to investigate the potential of bioleaching for the treatment of an environmentally hazardous waste, a blastfurnace flue dust designated Theisen sludge. Met Minerals Free Full-Text Laboratory Scale Municipal solid waste incineration bottom ash (MSWI BA) is the main output of the municipal solid waste incineration process, both in mass and volume. It contains some heavy metals that possess market value, but may also limit the utilization of the material. This study illustrates a robust and simple heap leaching method for recovering zinc and copper from MSWI BA.

      Mission 2015:Bioleaching

      One way to mitigate the environmental consequences of mining and quarrying is through the use of bioleaching microbes. These "rock-munching microbes" such as the Acidithiobacillus and Leptospirillum bacterium, can clean up abandoned mine sites. Figure 2:An Open Access Study on the Possibilities to Use Ashes, EAF Batch bioleaching was performed on a pyrite concentrate in 1-L reactors, using a mixed mesophilic culture at a temperature of 35ºC. Neutralising agents were added regularly to ad-just pH to the desired level of 1.5. The ashes used were Bioash, Waste ash and Coal & Tyres ash, representing ashes gen-

      Phylogeny of Bacteria from Steelmaking Wastes and Their

      Currently, millions of tons of steel are produced worldwide. This has become a serious economic and environmental challenge because the ores used for steel production are nonrenewable resources and the production generates huge amount of waste. In this study, we identified and investigated the ability of bacteria from steelmaking waste with low and high zinc concentration to promote leaching Pilot-Plant Study of Wastewater Sludge Decontamination performance of the ferrous sulfate bioleaching (FSBL) process in a pilot plant for decontamination and stabilization of wastewater sludge. Batch and continuous experiments, conducted with two 4-m3 bioreactors using indige nous iron-oxidizing bacteria (20% v/v of inoculum) with addition of 4.0 g


      Bioleaching of Zinc and Iron from Steel Plant Waste using Acidithiobacillus Ferrooxidans Zinc - Essential Chemical Industry

      • ZincUses of ZincAnnual Production of ZincManufacture of ZincZinc is often found in nature together with lead in sulfide ores. The metals are separated during refining. As zinc is resistant to corrosion and easy to apply, much of it is used to protect iron and steel-based products.AQA GCSE chemistry :using resources Flashcards Quizlet1. ammonia + sulphuric acid ammonium sulphate. Add 25cm3 ammonia to conical flask. 2. Fill the burette with sulphuric acid and record the initial reading. 3. Open the tap to add the flask swirling regularly. 4. Using a glass rod, test a drop of the solution in the conical flask with litmus or phenolphthalein until see a colour change.

        of Municipal Solid Waste Incineration Bottom Ash

        the e ect of autotrophic and acidophilic bioleaching microorganisms in the system was studied. Leaching yields for zinc and copper varied between 1853% and 644%, respectively. For intensied copper dissolution, aeration and possibly iron oxidizing bacteria caused clear benets. The MSWI BA was challenging to treat.Leaching and Recovery of Metals SpringerLinkOct 13, 2017 · Bayat O, Sever E, Bayat B, Arslan V, Poole C (2009) Bioleaching of zinc and iron from steel plant waste using Acidithiobacillus Ferrooxidans. Appl Biochem Biotechnol 152(1):117126, https://doi/10.1007/s12010-008-8257-5 CrossRef Google Scholar

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