The Role of Main Leaching Agents Responsible for Ni Bioleaching from spent Ni-Cd Batteries

Velgosová, Oksana; Kaduková, Jana; Marcinčáková, R.; Mražíková, Anna; Frohlich, L.

doi:10.1080/01496395.2013.836228

Cited by 17 publications

(6 citation statements)

References 23 publications

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“…The importance of iron was also confirmed in the previous research work concerning of Ni-Cd batteries leaching in abiotic environment of ferric iron [20]. The authors reported that an increase of Fe 3+ concentration in the solution lead to higher leaching rates as well as leaching efficiency of nickel and cadmium.…”

Section: M(oh) 2 + H 2 So 4 → Mso 4 + H 2 O (4)supporting

confidence: 72%

“…Metals in the Ni-Cd batteries occur in metallic forms as well as in the form of hydroxides, oxohydroxides. The percentage of particular forms differs in anode and cathode [20,21]. To elucidate the significance of iron in Ni and Cd bioleaching from Ni-Cd batteries the metal dissolution from cathode in the same leaching systems as used for PCBs bioleaching and abiotic leaching is shown in Fig.…”

Section: Dissolution Of Metals From Ni-cd Batteriesmentioning

confidence: 99%

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Closing the Loop: Key Role of Iron in Metal-Bearing Waste Recycling

Sedláková-Kaduková

Marcinčáková

Mražíková

et al. 2017

Archives of Metallurgy and Materials

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The role of iron in metal-bearing waste bioleaching was studied. Four various types of waste (printed circuit boards (PCBs), Ni-Cd batteries, alkaline batteries and Li-ion batteries) were treated by bioleaching using the acidophilic bacteria A. ferrooxidans and A. thiooxidans (separately or in mixture). Role of main leaching agents (Fe 3+ ions or sulphuric acid) was simulated in abiotic experiments. Results showed that oxidation abilities of Fe 3+ ions were crucial for recovery of Cu and Zn from PCBs, with the efficiencies of 88% and 100%, respectively. To recover 68% of Ni from PCBs, and 55% and 100% of Ni and Cd, respectively, from Ni-Cd batteries both oxidation action and hydrolysis of Fe 3+ were required. The importance of Fe 2+ ions as a reducing agent was showed in bioleaching of Co from Li-ion batteries and Mn from alkaline batteries. The efficiency of the processes has increased by 70% and 40% in Co and Mn bioleaching, respectively, in the presence of Fe 2+ ions. Based on the results we suggest the integrated biometallurgical model of metal-bearing waste recycling in the effort to develop zero-waste and less energy-dependent technologies.

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Section: M(oh) 2 + H 2 So 4 → Mso 4 + H 2 O (4)supporting

confidence: 72%

Section: Dissolution Of Metals From Ni-cd Batteriesmentioning

confidence: 99%

Closing the Loop: Key Role of Iron in Metal-Bearing Waste Recycling

Sedláková-Kaduková

Marcinčáková

Mražíková

et al. 2017

Archives of Metallurgy and Materials

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“…Results showed that soublization efficiency of these refractory elementals in mixed culture is superior to that of pure strains. Proton and ferric iron in the bioleaching system are direct responsible for the soubilization of metals (Velgosova et al, 2014), based on this mechanism, so the synergistic effect in substrates utilization can promote the metal release. Results demonstrated a similar soubilization of metals at the end point between different combinations, which can be contributed to the same leaching environment.…”

Section: Resultsmentioning

confidence: 99%

Bioleaching of multiple metals from contaminated sediment by moderate thermophiles

Gan

Jie

et al. 2015

Marine Pollution Bulletin

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“…2) can be attributed to the oxidation of Fe 2+ to Fe 3+ as a result of bacterial oxidation (Eq. 1) which is accompanied by the consumption of acid and process of waste dissolution [16][17][18][19][20]: (1) The initial concentration of Fe 3+ was maintained at about 91.5 mg/dm 3 , which contributed to the Fe total leaching. Together with the observed decrease in the concentration of Fe 3+ (on 20th day of bioleaching) and parallel decline in pH, a process of slowing down dissolution with a downward trend of Fe total concentration in the solution was observed.…”

Section: Resultsmentioning

confidence: 99%

Possibilities Of Metals Extracton From Spent Metallic Automotive Catalytic Converters By Using Biometallurgical Method

Willner¹,

Kaduková²,

Fornalczyk³

et al. 2015

Archives of Metallurgy and Materials

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The main task of automotive catalytic converters is reducing the amount of harmful components of exhaust gases. Metallic catalytic converters are an alternative to standard ceramic catalytic converters. Metallic carriers are usually made from FeCrAl steel, which is covered by a layer of Precious Group Metals (PGMs) acting as a catalyst. There are many methods used for recovery of platinum from ceramic carriers in the world, but the issue of platinum and other metals recovery from metallic carriers is poorly described. The article presents results of preliminary experiments of metals biooxidation (Fe, Cr and Al) from spent catalytic converters with metallic carrier, using bacteria of the Acidithiobacillus genus.

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The Role of Main Leaching Agents Responsible for Ni Bioleaching from spent Ni-Cd Batteries

Cited by 17 publications

References 23 publications

Closing the Loop: Key Role of Iron in Metal-Bearing Waste Recycling

Closing the Loop: Key Role of Iron in Metal-Bearing Waste Recycling

Bioleaching of multiple metals from contaminated sediment by moderate thermophiles

Possibilities Of Metals Extracton From Spent Metallic Automotive Catalytic Converters By Using Biometallurgical Method

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