Column bioleaching characteristic of copper and iron from Zijinshan sulfide ores by acid mine drainage

Wu, Zengling; Zou, Laichang; Chen, Jinhe; Lai, Xiaokang; Zhu, Yong-guan

doi:10.1016/j.minpro.2016.01.015

Cited by 23 publications

(8 citation statements)

References 19 publications

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“…Similarly increase in H 2 O 2 dosage from 100 mg/L to 200 mg/L, 300 mg/L and 400 mg/L for dicamba and 30 mg/L, 40 mg/L, 50 mg/L and 60 mg/L for ametryn did not shows any significant change with 300 mg/L and 50 mg/L bioleached laterite iron load for dicamba and ametryn respectively. This may be due to no reduction in the induction period of process on H 2 O 2 increase [65][66][67]. Many research teams made a successful attempt to extract iron from laterite soil chemically by acid digestion method and studied the catalytic role of extracted laterite iron in Fenton's process [13][14][15]17].…”

Section: Catalytic Degradation Of Selective Herbicides By Bioleached mentioning

confidence: 99%

Bioleaching of iron from laterite soil using an isolated Acidithiobacillus ferrooxidans strain and application of leached laterite iron as Fenton’s catalyst in selective herbicide degradation

2021

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A novel isolated strain Acidithiobacillus ferrooxidans BMSNITK17 has been investigated for its bioleaching potential from lateritic soil and the results are presented. System conditions like pH, feed mineral particle size, pulp density, temperature, rotor speed influences bioleaching potential of Acidithiobcillus ferrooxidans BMSNITK17 in leaching out iron from laterite soil. Effect of sulfate addition on bioleaching efficiency is studied. The bioleached laterite iron (BLFe’s) on evaluation for its catalytic role in Fenton’s oxidation for the degradation of ametryn and dicamba exhibits 94.24% of ametryn degradation and 92.45% of dicamba degradation efficiency. Fenton’s oxidation performed well with the acidic pH 3. The study confirms the role of Acidithiobacillus ferrooxidans in leaching iron from lateritic ore and the usage of bioleached lateritic iron as catalyst in the Fenton’s Oxidation.

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Section: Catalytic Degradation Of Selective Herbicides By Bioleached mentioning

confidence: 99%

Bioleaching of iron from laterite soil using an isolated Acidithiobacillus ferrooxidans strain and application of leached laterite iron as Fenton’s catalyst in selective herbicide degradation

2021

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“…The deposit contains copper sulfide ore of the chalcocite variety with a content of about 1% copper. A large number of studies have also been conducted on the Zijinshan copper mine (Liu et al, 2016;Wu et al, 2016;Zou et al, 2015). The Zijinshan copper mine is the largest secondary copper-sulfide mine in China.…”

Section: Introductionmentioning

confidence: 99%

Bacterial and chemical leaching of copper-containing ores with the possibility of subsequent recovery of trace silver

et al. 2019

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“…Acid mine drainage (AMD) is highly acidic and contains large quantities of Fe ions (Fe 2+ and Fe 3+ ) and heavy metal elements [1][2][3][4][5][6]. It not only corrodes the pipes in mine wells and other related equipment, but also heavily pollutes surface water and land resources [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…Usually, the formation of secondary iron minerals is influenced by a variety of factors, including the acidity of the solution, reaction time, reaction temperature, concentration of Fe 2+ , and the variety or concentration of monovalent cations [25,26]. According to Reactions (1)-(3), the biosynthesis of schwertmannite and jarosite involves a process whereby Fe 2+ ions are oxidized to Fe 3+ that in turn form Fe 8 O 8 (OH) 6 SO 4 or MFe 3 (SO 4 ) 2 (OH) 6 . In this process, the supply rate of Fe 3+ as an intermediate product determines the formation of secondary iron minerals.…”

Section: Introductionmentioning

confidence: 99%

Influence of Monovalent Cations on the Efficiency of Ferrous Ion Oxidation, Total Iron Precipitation, and Adsorptive Removal of Cr(VI) and As(III) in Simulated Acid Mine Drainage with Inoculation of Acidithiobacillus ferrooxidans

Song

Wang

Yang

et al. 2018

Metals

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Acid mine drainage is highly acidic and contains large quantities of Fe and heavy metal elements. Thus, it is important to promote the transformation of Fe into secondary iron minerals that exhibit strong heavy-metal removal abilities. Using simulated acid mine drainage, this work analyzes the influence of monovalent cations (K + , NH 4 + , and Na + ) on the Fe 2+ oxidation and total Fe deposition efficiencies, as well as the phases of secondary iron minerals in an Acidithiobacillus ferrooxidans system. It also compares the Cr(VI) (K 2 Cr 2 O 7 ) and As(III) (As 2 O 3 ) removal efficiencies of different schwertmannites. The results indicated that high concentrations of monovalent cations (NH 4 + ≥ 320 mmol/L, and Na + ≥ 1600 mmol/L) inhibited the biological oxidation of Fe 2+ . Moreover, the mineralizing abilities of the three cations differed (K + > NH 4 + > Na + ), with cumulative Fe deposition efficiencies of 58.7%, 28.1%, and 18.6%, respectively [n(M) = 53.3 mmol/L, cultivation time = 96 h]. Additionally, at initial Cr(VI) and As(III) concentrations of 10 and 1 mg/L, respectively, the Cr(VI) and As(III) removal efficiencies exhibited by schwertmannites acquired by the three mineralization systems differed [n(Na) = 53.3 > n(NH 4 ) = 53.3 > n(K) = 0.8 mmol/L]. Overall, the analytical results suggested that the removal efficiency of toxic elements was mainly influenced by the apparent structure, particle size, and specific surface area of schwertmannite.

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Column bioleaching characteristic of copper and iron from Zijinshan sulfide ores by acid mine drainage

Cited by 23 publications

References 19 publications

Bioleaching of iron from laterite soil using an isolated Acidithiobacillus ferrooxidans strain and application of leached laterite iron as Fenton’s catalyst in selective herbicide degradation

Bioleaching of iron from laterite soil using an isolated Acidithiobacillus ferrooxidans strain and application of leached laterite iron as Fenton’s catalyst in selective herbicide degradation

Bacterial and chemical leaching of copper-containing ores with the possibility of subsequent recovery of trace silver

Influence of Monovalent Cations on the Efficiency of Ferrous Ion Oxidation, Total Iron Precipitation, and Adsorptive Removal of Cr(VI) and As(III) in Simulated Acid Mine Drainage with Inoculation of Acidithiobacillus ferrooxidans

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