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Zhang W, Jia H, Wang Y, Gao F, Yang G, Wang J. Review in application of blast furnace dust in wastewater treatment: material preparation, integrated process, and mechanism. Environ Sci Pollut Res Int 2024; 31:22339-22361. [PMID: 38433174 DOI: 10.1007/s11356-024-32631-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 02/20/2024] [Indexed: 03/05/2024]
Abstract
Blast furnace dust (BFD) is the solid powder and particulate matter produced by dust removal process in ironmaking industry. The element composition of BFD is complex, and a direct return to sintering will lead to heavy metal enrichment and blast furnace lining corrosion. In recent years, the application of BFD in wastewater treatment has attracted widespread attention. Based on the mechanisms of action of BFD in wastewater, this paper discusses in detail the application of BFD in iron-carbon micro-electrolysis, biological enhancement, adsorption, flocculation, and Fenton/Fenton-like reactions. Iron oxides and carbon in BFD are key substances. Thus, BFD has great potential as a raw material in wastewater treatment, and the waste utilization of BFD can be realized. However, the difference in elements and composition of BFD limits its large-scale application. We can classify BFD according to different proportions of elements. In the future, it is necessary to focus on the service life of BFD in water and whether it shall bring secondary pollution to water.
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Affiliation(s)
- Wen Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
- School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Hui Jia
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
- School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Yue Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
- School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Fei Gao
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
- School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Guang Yang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China
| | - Jie Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China.
- School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China.
- Cangzhou Institute of Tiangong University, Cangzhou, 061000, China.
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Wang Y, Qi X, Qin Y, An C, Guo J, Wang J. Preparation of blast furnace dust particle electrodes and their application in synergistic electrochemical degradation of saline polyvinyl alcohol wastewater. Environ Pollut 2023; 337:122574. [PMID: 37722474 DOI: 10.1016/j.envpol.2023.122574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
Polyvinyl alcohol (PVA) has been widely used as a water-soluble plastic in laundry and dish detergent pods, yet wastewater contaminated with PVA is too difficult to be treated due to its high salinity and foaming. Here, we fabricated blast furnace dust (BFD) particle electrodes, and developed a three-dimensional electrocatalytic system (3DEC) to treat saline PVA wastewater. The optimum preparation condition for BFD particle electrode was iron carbon ratio of 2:1 doping with TiO2. The optimal parameters of 3DECs for PVA wastewater degradation were thoroughly investigated, with current density of 30 mA/cm2, electrode distance of 30 mm, pH value of 7.0, and particle electrode filling rate of 50%. PVA wastewater degradation rate could reach 89.33% within 120 min. The underlying mechanism of iron-carbon micro electrolysis and electrocatalytic system was further studied. PVA wastewater was degraded by direct catalytic oxidation from electrodes. A scavenger experiment showed that free radicals consisting of •OH and HClO mainly contributed to the PVA wastewater degradation. HClO was generated by Cl- at the electrocatalysis and micro electrolysis of particles. In addition, the lifetime of the prepared BFD particle electrode was 120 h, which exhibited electrochemical stability. These findings highlight that the 3DECs coupled with BFD particle electrode is a promising electrocatalysis process for the removal of PVA wastewater.
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Affiliation(s)
- Yue Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Xinxin Qi
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Yanting Qin
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Chenyun An
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Jianhua Guo
- Australian Centre for Water and Environmental Biotechnology, The University of Queensland, 4072, Australia
| | - Jie Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China; School of Material Science and Engineering, Tiangong University, Tianjin, 300387, China; Cangzhou Institute of Tiangong University, Cangzhou, 061000, China.
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Guo J, Zhang Y, Wen H, Jia H, Wang J. A novel recycling way of blast furnace dust from steelworks: Electrocoagulation coupled micro-electrolysis system in indigo wastewater treatment. Chemosphere 2023; 327:138416. [PMID: 36996917 DOI: 10.1016/j.chemosphere.2023.138416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 06/19/2023]
Abstract
In this study, a novel electrocoagulation electrode, based on blast furnace dust (BFD) from steelworks waste, was prepared for indigo wastewater treatment, and the performance was compared with different ratios of Fe-C composite electrodes. The BFD electrode exhibited great electrochemical performance and removal effect. The presence of Fe-C micro-electrolysis in the electrocoagulation system of the BFD electrode was demonstrated by FT-IR, Raman, ESR, and quenching experiments. Density Functional Theory (DFT) calculations further demonstrated that the iron-carbon ratio could influence the degree of O-O breaking and enhance ·OH generation. Finally, the BFD electrode's operating parameters were perfected, and the COD removal and decolorization could reach 75.7% and 95.8% within 60 min, respectively. Fe-C composite electrodes reduce energy consumption compared with the traditional Fe/Al electrode and have a lower production cost, which provides a potential way to recycle and reuse the resources of solid waste in steelworks, the concept of "waste controlled by waste" is realized.
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Affiliation(s)
- Jiaran Guo
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China; Cangzhou Institute of Tiangong University, Tiangong University, Cangzhou, 061000, China
| | - Yang Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Haitao Wen
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China; Cangzhou Institute of Tiangong University, Tiangong University, Cangzhou, 061000, China
| | - Hui Jia
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China; Cangzhou Institute of Tiangong University, Tiangong University, Cangzhou, 061000, China.
| | - Jie Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin, 300387, China; Cangzhou Institute of Tiangong University, Tiangong University, Cangzhou, 061000, China.
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