Addition of reactive oxygen scavenger to enhance PH3 biopurification: Process and mechanism

Li, Ting; Liu, Shugen; Yao, Xiaofei

doi:10.1016/j.psep.2020.06.019

Cited by 7 publications

(1 citation statement)

References 27 publications

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“…To investigate the effects of free radicals on vanadium leaching, 1000 μL of DMPO (5,5-dimethyl-1-pyrroline- N -oxide) trapping agent, with a concentration of 0.3 mol L –1 , 21 was mixed with 100 μL of leaching mixture. Thereafter, electron paramagnetic resonance (EPR A300-6/1, Bruker Corp., Germany) spectrometry coupled with the spin trapping technique was employed to identify the free radicals.…”

Section: Methodsmentioning

confidence: 99%

Rapid Vanadium Extraction from Roasted Vanadium Steel Slag via a H₂SO₄–H₂O₂ System: Process and Mechanism

Liu

Zhang

et al. 2022

ACS Omega

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A H 2 SO 4 –H 2 O 2 system was developed to enhance the efficacy of vanadium extraction from roasted vanadium steel slag. The optimum parameters and the behavior of vanadium extraction were investigated systematically. When 1 mL of H 2 O 2 per gram of vanadium slag was added to a leaching mixture at 50 °C, along with 30% H 2 SO 4 , 80.5% of vanadium extraction was achieved within 15 min. However, without H 2 O 2 , only 58.5% of vanadium extraction was achieved at the same leaching time. The H 2 SO 4 –H 2 O 2 system facilitated the dissolution of metallic ions in a short time and then triggered the production of strong oxidizing substances, such as HO • and O 2 –• , via the Fenton reaction and Fenton-like reaction. Subsequently, the low-valence vanadium, existing in the leaching solution or located on the surface of the particle, was converted to pentavalent vanadium by strongly oxidizing substances, such as H 2 O 2 and its derivatives HO • and O 2 . The complex oxides on the surface of the particle were destroyed, after which the vanadium inside the particle was gradually exposed to the acid leaching solution. The vanadium was oxidized to pentavalent vanadium, which then entered the leaching solution. Finally, a pathway of vanadium extraction via the H 2 SO 4 –H 2 O 2 system was proposed to gain insight into rapid vanadium leaching.

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Section: Methodsmentioning

confidence: 99%

Rapid Vanadium Extraction from Roasted Vanadium Steel Slag via a H₂SO₄–H₂O₂ System: Process and Mechanism

Liu

Zhang

et al. 2022

ACS Omega

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Enhanced biological phosphorus removal from wastewater by current stimulation coupled with anaerobic digestion

Liu

Yao

et al. 2022

Chemosphere

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High-performance liquid-phase catalytic purification of phosphine in tail gas using Pd(II)/Cu(II) composite

Zhao

Cheng

et al. 2023

Chinese Journal of Chemical Engineering

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Addition of reactive oxygen scavenger to enhance PH3 biopurification: Process and mechanism

Cited by 7 publications

References 27 publications

Rapid Vanadium Extraction from Roasted Vanadium Steel Slag via a H₂SO₄–H₂O₂ System: Process and Mechanism

Rapid Vanadium Extraction from Roasted Vanadium Steel Slag via a H₂SO₄–H₂O₂ System: Process and Mechanism

Enhanced biological phosphorus removal from wastewater by current stimulation coupled with anaerobic digestion

High-performance liquid-phase catalytic purification of phosphine in tail gas using Pd(II)/Cu(II) composite

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Addition of reactive oxygen scavenger to enhance PH3 biopurification: Process and mechanism

Cited by 7 publications

References 27 publications

Rapid Vanadium Extraction from Roasted Vanadium Steel Slag via a H2SO4–H2O2 System: Process and Mechanism

Rapid Vanadium Extraction from Roasted Vanadium Steel Slag via a H2SO4–H2O2 System: Process and Mechanism

Enhanced biological phosphorus removal from wastewater by current stimulation coupled with anaerobic digestion

High-performance liquid-phase catalytic purification of phosphine in tail gas using Pd(II)/Cu(II) composite

Contact Info

Product

Resources

About

Rapid Vanadium Extraction from Roasted Vanadium Steel Slag via a H₂SO₄–H₂O₂ System: Process and Mechanism

Rapid Vanadium Extraction from Roasted Vanadium Steel Slag via a H₂SO₄–H₂O₂ System: Process and Mechanism