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Jiang J, Cao Y, Li G, Geng L, Zhang X, Zhao J, Liu C. Using Industrial Mining Solid Waste through Conversion to Phase-Change Materials for Thermal Energy Storage. Chempluschem 2025; 90:e202400519. [PMID: 39809702 DOI: 10.1002/cplu.202400519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2024] [Revised: 01/13/2025] [Accepted: 01/14/2025] [Indexed: 01/16/2025]
Abstract
The mining industry produces a large amount of industrial solid waste every year. Among them, fly ash (FA), slag and tailings are the three main solid wastes, which can cause soil pollution, air pollution, water pollution and serious threat to human health if not handled properly. At present, the treatment methods of industrial solid waste mainly include direct landfill, recovery of high-value components, production of construction materials, etc. These methods not only waste land resources, but also have a limited scope of application. Mining and metallurgical industrial solid wastes are generally characterized by high porosity, certain mechanical strength, and high yield, which can be used as a porous matrix to support phase change materials (PCMs) after modification treatment, thus solving the problem of easy leakage of PCMs. At present, there is no overview of mining industry solid waste in PCM applications. This paper provides a detailed review of the research progress of FA, slag and tailings in the field of phase change thermal storage materials in recent years, which provides useful ideas for further research on the comprehensive utilization of solid wastes in the mining and metallurgical industry and the reduction of their pollution of the environment.
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Affiliation(s)
- Jiaping Jiang
- School of Low-carbon Energy and Power Engineering, China University of Mining and Technology, Xuzhou, 221116, PR China
| | - Yitong Cao
- School of Low-carbon Energy and Power Engineering, China University of Mining and Technology, Xuzhou, 221116, PR China
| | - Guo Li
- School of Low-carbon Energy and Power Engineering, China University of Mining and Technology, Xuzhou, 221116, PR China
| | - Long Geng
- School of Low-carbon Energy and Power Engineering, China University of Mining and Technology, Xuzhou, 221116, PR China
| | - Xiao Zhang
- School of Low-carbon Energy and Power Engineering, China University of Mining and Technology, Xuzhou, 221116, PR China
| | - Jiateng Zhao
- School of Low-carbon Energy and Power Engineering, China University of Mining and Technology, Xuzhou, 221116, PR China
| | - Changhui Liu
- School of Low-carbon Energy and Power Engineering, China University of Mining and Technology, Xuzhou, 221116, PR China
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Yu S, Garrabrants AC, DeLapp RC, Hubner T, Thorneloe SA, Kosson DS. Evaluation of testing approaches for constituent leaching from electric arc furnace (EAF) slags. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2025; 373:123892. [PMID: 39752941 PMCID: PMC12006862 DOI: 10.1016/j.jenvman.2024.123892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 12/11/2024] [Accepted: 12/24/2024] [Indexed: 01/15/2025]
Abstract
Increased usage of electric arc furnace (EAF) slags as soil amendments and surface aggregates raises concerns regarding heavy metal release. However, no standardized leaching characterization approach exists for EAF slags and other industrial materials. This study compares test results for three EAF slags using several testing approaches: (i) total content analysis, (ii) single-batch extractions (i.e., TCLP, SPLP, and in-vitro bioaccessibility assay), and (iii) evaluation for the fine fraction (<2 mm) and ingestion fraction (<250 μm). Test results were compared to the pH-dependent liquid-solid partitioning (LSP) and percolation column testing. Constituent screening based on total content identified As, Cr, Fe, Li, Mn, Sb, Se, Tl and V as constituents of potential concern (COPCs); however, pH-dependent LSP curves indicated that only Fe, Mn, and possibly Cr have the potential to exceed regional residential soil screening levels. Additional COPCs (Al, Ba, Cd, Cu, Cr(VI), Hg, Mo, Ni, Pb, and Sn) exceeded example thresholds at one or more of three plausible release conditions. LSP curves and column test results indicated that most COPCs are in equilibrium at test conditions. Although leaching evaluation indicated the potential for concentrations greater than thresholds, assessments incorporating test results with scenario-specific parameters provide a more precise basis for evaluating COPC release. This study demonstrates that the applicability of single-batch extraction tests is limited to conditions simulated by the test, while a well-defined LSP curve is representative of leaching over conditions of all single-batch tests. Therefore, pH-dependent and percolation column testing provides a baseline characterization to support environmental decision making.
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Affiliation(s)
- Siyuan Yu
- Department of Civil and Environmental Engineering, Vanderbilt University, PMB 351826, Nashville, TN, 37235-1826, USA
| | - Andrew C Garrabrants
- Department of Civil and Environmental Engineering, Vanderbilt University, PMB 351826, Nashville, TN, 37235-1826, USA
| | - Rossane C DeLapp
- Department of Civil and Environmental Engineering, Vanderbilt University, PMB 351826, Nashville, TN, 37235-1826, USA
| | - Tara Hubner
- Land, Chemicals, and Redevelopment Division, Region 8, U.S. EPA, 1595 Wynkoop St., Denver, CO, 80202, USA
| | - Susan A Thorneloe
- Office of Research and Development, U.S. EPA, 109 TW Alexander Dr., Research Triangle Park, NC, 27711, USA
| | - David S Kosson
- Department of Civil and Environmental Engineering, Vanderbilt University, PMB 351826, Nashville, TN, 37235-1826, USA.
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Yu S, Garrabrants AC, DeLapp RC, Hubner T, Thorneloe SA, Kosson DS. From leaching data to release estimates: Screening and scenario assessments of electric arc furnace (EAF) slag under unencapsulated use. JOURNAL OF HAZARDOUS MATERIALS 2024; 479:135522. [PMID: 39216240 PMCID: PMC11894602 DOI: 10.1016/j.jhazmat.2024.135522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 08/10/2024] [Accepted: 08/13/2024] [Indexed: 09/04/2024]
Abstract
Electric arc furnace (EAF) slag is the non-metallic byproduct of the primary U.S. steelmaking process. Much of the slag is marked for secondary uses as aggregates. EAF slags used as construction fill or residential groundcover are directly exposed to the environment, raising concerns of potential leaching impacts. Leaching data of EAF slags as function of eluate pH (Method 1313) and liquid-to-solid ratio (Method 1314) were used to refine an initial list of constituents of potential concern to those with potential to leach at concentrations greater than project thresholds, and to estimate release from EAF slags when used as unencapsulated groundcover. Screening assessment identified 11 of over 20 constituents requiring further assessment. Scenario-based assessments results showed that constituents with high available content and low leaching concentrations (Al, Cr, Co, Mn, Se) are persistent in contacting water over the assessment period while those with limited available content (As, Ba, Mo, V) were depleted. Aging decreased the release of Se while increasing Tl release, likely through a combination of hydration, carbonation, and cracking processes. Increasing fill depth and infiltration rates did not alter leaching concentrations; however, liquid-solid ratio for each assessment interval changed thereby impacting cumulative release.
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Affiliation(s)
- Siyuan Yu
- Department of Civil and Environmental Engineering, Vanderbilt University, PMB 351826, Nashville, TN 37235-1826, USA
| | - Andrew C Garrabrants
- Department of Civil and Environmental Engineering, Vanderbilt University, PMB 351826, Nashville, TN 37235-1826, USA
| | - Rossane C DeLapp
- Department of Civil and Environmental Engineering, Vanderbilt University, PMB 351826, Nashville, TN 37235-1826, USA
| | - Tara Hubner
- Land, Chemicals, and Redevelopment Division, Region 8, US EPA, 1595 Wynkoop St., Denver, CO 80202, USA
| | - Susan A Thorneloe
- Office of Research and Development, US EPA, 109 TW Alexander Dr., Research Triangle Park, NC 27711, USA
| | - David S Kosson
- Department of Civil and Environmental Engineering, Vanderbilt University, PMB 351826, Nashville, TN 37235-1826, USA.
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Deng W, Xiong R, Zhai X, Huang K, Li L, Zong Y, Wang H, Zhai J, Lai H, Mao N, Shi C, Lu F. Activation technology of steel slag for concrete exposed to plateau climate: a state-of-the-art review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:55917-55934. [PMID: 39256337 DOI: 10.1007/s11356-024-34923-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 09/03/2024] [Indexed: 09/12/2024]
Abstract
As a byproduct of steelmaking, steel slag occupies significant land resources and poses potential environmental and safety challenges due to its extensive accumulation. Recently, steel slag has shown promising applications in the field of concrete. However, considering the complexity of the plateau environment, the utilization of steel slag is relatively lacking, and its low reactivity and poor volume stability remain the main factors restricting its application in plateau concrete. This paper reviews the research status of steel slag activation techniques for concrete, including wet grinding, chemi-excitation, high-temperature activation, and carbonation treatment. The effects of different treatment techniques on the mechanical and durability properties of concrete and the potential issues are discussed. Although different modification methods can improve the activity and volume stability of steel slag to varying degrees, a single modification technology is difficult to achieve the high-quality utilization of steel slag in concrete on the plateau. Based on this, a steel slag grading grinding-magnetic separation utilization technique suitable for high-altitude areas is proposed, which is beneficial for improving the added value and utilization rate of steel slag in concrete.
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Affiliation(s)
- Wei Deng
- School of Materials Science and Engineering, Chang'an University, Xi'an, 710061, China
| | - Rui Xiong
- School of Materials Science and Engineering, Chang'an University, Xi'an, 710061, China.
| | - Xinming Zhai
- Qinghai Guoluo Highway Engineering Construction Co., Ltd., Xining, 810000, China
| | - Kai Huang
- Qinghai Guoluo Highway Engineering Construction Co., Ltd., Xining, 810000, China
| | - Liding Li
- College of Transportation, Jilin University, Changchun, 130025, China
| | - Youjie Zong
- School of Materials Science and Engineering, Chang'an University, Xi'an, 710061, China
| | - Haoyu Wang
- School of Materials Science and Engineering, Chang'an University, Xi'an, 710061, China
| | - Jianliang Zhai
- School of Materials Science and Engineering, Chang'an University, Xi'an, 710061, China
| | - Hao Lai
- School of Materials Science and Engineering, Chang'an University, Xi'an, 710061, China
| | - Nan Mao
- School of Materials Science and Engineering, Chang'an University, Xi'an, 710061, China
| | - Changchun Shi
- School of Materials Science and Engineering, Chang'an University, Xi'an, 710061, China
| | - Fuyang Lu
- School of Materials Science and Engineering, Chang'an University, Xi'an, 710061, China
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Pavlovsky J, Seidlerova J, Pegrimocova Z, Vontorova J, Motyka O, Michalska M, Smutna K, Roupcová P, Novak V, Matejka V, Vlcek J. Influence of the chemical composition of leachates on the results of ecotoxicity tests for different slag types. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 366:121731. [PMID: 38981260 DOI: 10.1016/j.jenvman.2024.121731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 07/02/2024] [Accepted: 07/02/2024] [Indexed: 07/11/2024]
Abstract
In this study, four ecotoxicological tests on Vibrio fischeri bacteria, Sinapis alba L. (white mustard), Daphnia magna S. (daphnia's) and earthworms were performed for three types of aqueous slag (ladle, blast furnace and converter) leachates with two-grain sizes (<4 mm, <10 mm). Concentrations of toxic elements and concentrations of Cr(VI), Ca, Na, Al, and other ions were determined. The raw slags were analyzed using X-ray fluorescence spectroscopy (XRFS), and major substances were determined by X-ray powder diffraction (XRD). The aqueous slag leachates passed ecotoxicological tests and met the required criteria, showing no toxicity to Vibrio fischeri and complying with white mustard test criteria. According to the results of the ecotoxicity tests with daphnia, the blast furnace slag samples were not ecotoxic, while two other slag samples were found to be entirely compliant. Characterization of the slags showed that the effect of element/ion leachability and slag grain size is essential. Biplot principal component analysis (PCA) showed that grain size does not significantly affect the separation of individuals on the plane. A positive correlation on toxicity was found with pH, conductivity, calcium content, dissolved content, salinity and fluoride concentration, whereas a negative correlation was found with magnesium concentration, dissolved organic carbon and potassium concentration. The effective concentration at 50% inhibition (EC50) value for Vibrio fischeri correlated with the first dimension of bivariate assessment. In summary, it was found that the investigated slags can be effectively reused as they comply with regulations and do not endanger the environment.
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Affiliation(s)
- Jiri Pavlovsky
- Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VSB - Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic.
| | - Jana Seidlerova
- Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VSB - Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic; Nanotechnology Centre, CEET, VSB - Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Zuzana Pegrimocova
- Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VSB - Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Jirina Vontorova
- Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VSB - Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Oldrich Motyka
- Nanotechnology Centre, CEET, VSB - Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic; Department of Environmental Engineering, Faculty of Mining and Geology, VSB - Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Monika Michalska
- Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VSB - Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Katerina Smutna
- Institute of Environmental Technology, CEET, Research Group: Water Treatment and Analysis, VSB - Technical University of Ostrava, 17. listopadu 2172/15 708 00 Ostrava-Poruba, Czech Republic
| | - Petra Roupcová
- Department of Occupational and Process Safety, Faculty of Safety Engineering, VSB - Technical University of Ostrava, Lumírova 630/13, 700 30 Ostrava-Výškovice, Czech Republic
| | - Vlastimil Novak
- Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VSB - Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Vlastimil Matejka
- Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VSB - Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Jozef Vlcek
- Material and Metallurgical Research Ltd., Pohraniční 693/31, Vítkovice, 703 00 Ostrava, Czech Republic
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Rong T, Yuan Y, Yang H, Yu H, Zuo H, Wang J, Xue Q. Investigation of the enrichment-purification process and electrochemical performance of kish graphite in dust from blast furnace tapping yard. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 175:121-132. [PMID: 38194797 DOI: 10.1016/j.wasman.2023.12.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 12/26/2023] [Accepted: 12/31/2023] [Indexed: 01/11/2024]
Abstract
Kish graphite is a typical byproduct of steel production, and its enrichment and purification are essential prerequisites for its high value and comprehensive utilization. To solve the problem of recovery and application of difficult-to-treat kish graphite with a small particle size obtained from metallurgical dust, kish graphite in blast furnace tapping yard dust was effectively enriched and purified by a comprehensive flotation-acid leaching treatment process in this study. The influence of the flotation agents on the flotation process was explored. The results showed that the optimized flotation agent dosage was 500.0 g·t-1 (collector) and 120.0 g·t-1 (frother), respectively. Based on the optimized flotation scheme, a graphite concentrate (FG) with 79.12 % carbon content and 93.5 % carbon recovery was obtained. After the leaching treatment with a HCl-HF mixed acid solution, the carbon content of the graphite concentrate increased to 95.55 %. The ID/IG value of the graphite concentrate was 0.145, and the average lattice spacing was approximately 0.3354 nm. The SEM results showed that the leaching-treated graphite concentrate (AFG) had a loose, fragment-like structure. When used as an anode material for lithium-ion batteries, The AFG still provided a high reversible capacity of ∼370 mAh·g-1 and excellent coulombic efficiency of 99.6 % after 350 cycles. In addition, an industrial-grade recycling and utilization path for kish graphite based on a circular supply chain strategy was proposed. The results of this study may serve as a conceptual basis for the recovery and application of kish graphite from metallurgical dust.
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Affiliation(s)
- Tao Rong
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, Beijing, China
| | - Yaqiang Yuan
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, Beijing, China
| | - Haoqing Yang
- Jiangsu Branch of China Academy of Machinery Science and Technology Group Co., Ltd., Changzhou 213000, Jiangsu, China
| | - Huafang Yu
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, Beijing, China
| | - Haibin Zuo
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, Beijing, China.
| | - Jingsong Wang
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, Beijing, China
| | - Qingguo Xue
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, Beijing, China
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Liu X, Wu Y, Pan D, Li B, Wang W. Study on controllable preparation of high performance andradite based glass-ceramics by harmful iron-rich waste slag. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 901:165754. [PMID: 37527705 DOI: 10.1016/j.scitotenv.2023.165754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/20/2023] [Accepted: 07/22/2023] [Indexed: 08/03/2023]
Abstract
Due to containing abundant FeOx and trace heavy metals (Pb, As, Cr, Cd, etc.), the disposal of lead/zinc smelting slag (LSS-ZSS) with ultra-high historical reserves has attracted increased attention. Using LSS-ZSS to prepare glass-ceramics is a good method to solve the problem of LSS-ZSS accumulation and realize heavy metal solidification, whereas there are some technical challenges that are difficult to deal with. A large amount of FeOx component in LSS-ZSS would not only lead to melt overflow, but also cause early crystallization of basic glass. In this work, through the directional modification of LSS-ZSS and the subsequent crystallization kinetics regulation, we successfully prepare high performance glass-ceramics with andradite and hematite as the main crystal phases. In addition, by means of SEM, PXRD, FTIR spectra and XPS, the morphology/phase transformation, fine structure and valence variations of iron components in LSS-ZSS at different temperature zones are systematically studied. The maximum shrinkage rate of resultant basic glasses is 27 %, and the maximum flexural strength and compressive strength of glass-ceramics are 128 MPa and 890 MPa, respectively. This work would not only benefit to solve the problem of resource utilization of harmful LSS-ZSS, but also provide a possible reference for the utilization of iron-rich waste slag in magnetic properties related fields.
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Affiliation(s)
- Xiaomin Liu
- Institute of Circular Economy, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, PR China
| | - Yufeng Wu
- Institute of Circular Economy, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, PR China.
| | - De'an Pan
- Institute of Circular Economy, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, PR China
| | - Bin Li
- Institute of Circular Economy, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, PR China
| | - Wei Wang
- Institute of Circular Economy, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, PR China
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Tian Y, Xia R, Ying Y, Lu S. Desulfurization steel slag improves the saline-sodic soil quality by replacing sodium ions and affecting soil pore structure. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 345:118874. [PMID: 37659360 DOI: 10.1016/j.jenvman.2023.118874] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/10/2023] [Accepted: 08/26/2023] [Indexed: 09/04/2023]
Abstract
Flue gas desulfurization steel slag (DS), a solid waste produced by coal power plants and steelworks, was proposed as an amendment for the remediation of saline-sodic soil. A pot experiment including three dosages of DS alone (1%, 5%, 10% w/w) and their combination with fulvic acid (FA, 1%, w/w) was conducted to evaluate the potentials of DS as an amendment and to explore remediation mechanism of DS combined with FA on saline-sodic soil. The soil salinity, nutrition, pore structure, water retention, consistency, and desiccation cracking of DS and FA-amended soils were determined. Application of DS resulted in a significant reduction of pH, sodium adsorption ratio (SAR), and exchangeable sodium percentage (ESP) of saline-sodic soil. The DS amendment significantly increased the 6-15 μm pore volume of soil. The combination application of DS and FA showed better effect than the DS alone. The DS amendments at 5% and 10% significantly increased the field water capacity, permanent wilting point, and available water content of the soil, whereas significantly decreased the plastic limit, liquid limit, and plastic index. The DS alone and combined with FA could effectively control the development of desiccation cracking, reduced significantly the crack area density and average width of cracks of the soil. Consequently, the improvement of alkalinity and soil physical properties by DS amendment significantly increased the yield of alfalfa grown on saline-sodic soil. The remarkable improvement of physical properties of saline-sodic soil contributed to the decrease of SAR and ESP by the Ca2+ in DS replacing the Na + at soil colloid sites. Our results suggested that DS amendments alone or combined with fulvic acid have great potential as saline-alkali soil amendment.
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Affiliation(s)
- Yu Tian
- Zhejiang Provincial Key Laboratory of Agricultural Resource and Environment, Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Zhejiang University, Hangzhou, 310058, PR China; College of Environmental and Resource Science, Zhejiang University, Hangzhou, 310058, PR China.
| | - Runmin Xia
- Zhejiang Provincial Key Laboratory of Agricultural Resource and Environment, Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Zhejiang University, Hangzhou, 310058, PR China; College of Environmental and Resource Science, Zhejiang University, Hangzhou, 310058, PR China
| | - Yuqian Ying
- Zhejiang Provincial Key Laboratory of Agricultural Resource and Environment, Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Zhejiang University, Hangzhou, 310058, PR China; College of Environmental and Resource Science, Zhejiang University, Hangzhou, 310058, PR China
| | - Shenggao Lu
- Zhejiang Provincial Key Laboratory of Agricultural Resource and Environment, Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Zhejiang University, Hangzhou, 310058, PR China; College of Environmental and Resource Science, Zhejiang University, Hangzhou, 310058, PR China.
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9
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Kong F, Ying Y, Lu S. Heavy metal pollution risk of desulfurized steel slag as a soil amendment in cycling use of solid wastes. J Environ Sci (China) 2023; 127:349-360. [PMID: 36522067 DOI: 10.1016/j.jes.2022.05.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 05/09/2022] [Accepted: 05/09/2022] [Indexed: 06/17/2023]
Abstract
The by-product of wet flue gas desulfurization, desulfurized steel slag (DS), had chemical characteristics like natural gypsum that can be used to improve saline-sodic soil. However, contamination risk of heavy metals for cycling utilization of DS in agriculture was concerned mostly. Both pot and field experiments were conducted for evaluating the potential pollution risk of DS as the amendment of saline-sodic soil. Results showed that application of DS decreased the contents of Cd, Cu, Zn, and Pb, while significantly increasing chromium (Cr) content in DS-amended soils. The field experiment demonstrated that the migration of heavy metals (Cd, Zn, Cu, and Pb) in the soil profile was negligible. The application of DS at the dosage of 22.5-225 tons/ha significantly increased the Cr content in alfalfa (Medicago sativa L.) but lower than the national standard for feed in China (GB 13078-2017). DS altered the chemical fraction of heavy metals (Zn, Cu, and Pb), transferred exchangeable, reducible into oxidizable and residual forms in DS-amended soil. Application of DS combined with fulvic acid (FA) could effectively reduce the movement of heavy metals in soil and the accumulation of Cr in alfalfa. Based on our results, DS was a safe and feasible material for agricultural use and presented relatively little pollution risk of heavy metals. However, the results also showed that DS to a certain extent had a potential environmental risk of Cr if larger dosages of DS were used.
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Affiliation(s)
- Fanyi Kong
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yuqian Ying
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Shenggao Lu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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Yang L, Tang Y, Cao D, Yang M. Remediation of Acid Mine Drainage (AMD) Using Steel Slag: Mechanism of the Alkalinity Decayed Process. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2805. [PMID: 36833502 PMCID: PMC9956301 DOI: 10.3390/ijerph20042805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/19/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
Steel slag has been proven to be an effective environment remediation media for acid neutralization, and a potential aid to mitigate acid mine drainage (AMD). Yet its acid neutralization capacity (ANC) is frequently inhibited by precipitate after a period of time, while the characteristics of the precipitate formation process are unclear yet. In this study, ANC for basic oxygen steel slag was conducted by neutralization experiments with dilute sulfuric acid (0.1 M) and real AMD. Some partially neutralized steel slag samples were determined by X-ray diffraction (XRD), scanning electron microscopy combined with an energy dispersive spectrometer (SEM-EDS), and N2 adsorption tests to investigate the potential formation process of the precipitate. The results indicated that Ca-bearing constitutes leaching and sulfate formation were two main reactions throughout the neutralization process. A prominent transition turning point from leaching to precipitate was at about 40% of the neutralization process. Tricalcium silicate (Ca3SiO5) played a dominant role in the alkalinity-releasing stage among Ca-bearing components, while the new-formed well crystalline CaSO4 changed the microstructure of steel slag and further hindered alkaline components releasing. For steel slag of 200 mesh size, the ANC value for the steel slag sample was 8.23 mmol H+/g when dilute sulfate acid was used. Neutralization experiments conducted by real AMD confirmed that the steel slag ANC was also influenced by the high contaminants, such as Fe2+, due to the hydroxides precipitate reactions except for sulfate formation reactions.
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Affiliation(s)
- Lei Yang
- School of Geosciences and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China
- Guizhou Zhonggui Environmental Technology Co., Ltd., Guiyang 550008, China
| | - Yuegang Tang
- School of Geosciences and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China
| | - Duanning Cao
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China
| | - Mingyuan Yang
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China
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Chen J, Xing Y, Wang Y, Zhang W, Guo Z, Su W. Application of iron and steel slags in mitigating greenhouse gas emissions: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 844:157041. [PMID: 35803422 DOI: 10.1016/j.scitotenv.2022.157041] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/23/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023]
Abstract
The comprehensive consideration of climate warming and by-product management in the iron and steel industry, has a significant impact on the realization of environmental protection and green production. Blast furnace slag (BFS) and steel slag (SS), collectively called iron and steel slags, are the main by-products of steelmaking. The economical and efficient use of iron and steel slags to reduce greenhouse gas (GHG) emissions is an urgent problem to be solved. This paper reviewed the carbonization and waste heat recovery of iron and steel slags, and the utilization of iron and steel slags as soil amendments, discussed their application status and limitations in GHG reduction. Iron and steel slags are rich in CaO, which can be used as CO2 adsorbents to achieve a maximum concentration of 0.4-0.5 kg CO2/kg SS. Blast furnace molten slag contains a considerable amount of waste heat, and thermal methods can recover more than 60 % of the heat energy. Chemical methods can use waste heat in the reaction to generate gas fuel, and iron in slags can be used as a catalytic component to promote chemical reaction. Waste heat recovery saves fuel and reduces the CO2 emissions caused by combustion. When iron and steel slags are used as soil amendments, the iron oxides, alkaline substances, and SiO2 in iron and steel slags can affect the emission of CH4, N2O, and CO2 from soil, microorganisms, and crops, and achieve a maximum reduction of more than 60 % of the overall GHG of paddy fields. Finally, This paper provided valuable suggestions for future GHG reduction studies of iron and steel slags in energy, industry, and agriculture.
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Affiliation(s)
- Jing Chen
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Yi Xing
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, PR China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Yan Wang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Wenbo Zhang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Zefeng Guo
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, PR China
| | - Wei Su
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, PR China; Guangdong Province Engineering Laboratory for Air Pollution Control, Guangzhou, 510530, PR China.
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Blast Furnace Slag, Post-Industrial Waste or Valuable Building Materials with Remediation Potential? MINERALS 2022. [DOI: 10.3390/min12040478] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In recent years, the construction industry has struggled with a variety of issues such as material availability, supply channel management, and the increasing cost of construction materials. These issues have encouraged the search for replacements and substitutes for existing construction materials. Blast Furnace Slag is used in the construction industry as a mineral amendment or aggregate. Their use in Earth Construction, due to their post-industrial origin, may be associated with increased levels of potentially toxic elements (PTE) in the soil. This study aimed to evaluate the effectiveness of the immobilization potential of Blast Furnace Slag and to compare it with the addition of Blast Furnace Slag with Activated Carbon using different concentrations of these amendments. We were able to determine the concentrations of selected PTE (zinc, copper, nickel, cadmium and lead) in the soil, roots and aerial parts of Lolium perenne L., using different concentrations of Blast Furnace Slag (3%, 5% and 10%), and Blast Furnace Slag with Activated Carbon (3% and 5%) as soil amendments. Measurements were carried out with Flame Atomic Absorption Spectrometry (FAAS). Both the addition of Blast Furnace Slag and Activated Carbon with Slag increased plant biomass. The addition of slag effectively reduced the zinc, copper, cadmium and lead content of the soil, while the addition of Activated Carbon slag significantly increased the content of selected PETs in the roots and aerial parts of plants. It was considered reasonable to use Blast Furnace Slag with the addition of Activated Carbon in supporting the processes of the assisted phytostabilization of PTE polluted soils.
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Market Stakeholder Analysis of the Practical Implementation of Carbonation Curing on Steel Slag for Urban Sustainable Governance. ENERGIES 2022. [DOI: 10.3390/en15072399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Carbonation curing on steel slag is one of the most promising technologies for the iron and steel industry to manage its solid waste and carbon emissions. However, the technology is still in its demonstration stage. This paper investigates the market stakeholders of carbonation curing on steel slag for construction materials for its effective application by taking China as a case study. A holistic analysis of the competition, market size, and stakeholders of carbonation curing on steel slag was carried out through a literature review, a survey, a questionnaire, and interviews. The results showed that carbonation curing on steel slag had the advantages of high quality, high efficiency, low cost, and carbon reduction compared with other technologies. Shandong province was the most suitable province for the large-scale primary application of the technology. Stakeholder involvement to establish information platforms, enhance economic incentives, and promote adequate R&D activities would promote carbonation curing of steel slag into practice. This paper provides a reference for the commercialization of carbonation curing on similar calcium- and magnesium-based solid waste materials.
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Lim JY, Kang YG, Sohn KM, Kim PJ, Galgo SJC. Creating new value of blast furnace slag as soil amendment to mitigate methane emission and improve rice cropping environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150961. [PMID: 34656598 DOI: 10.1016/j.scitotenv.2021.150961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 09/06/2021] [Accepted: 10/09/2021] [Indexed: 06/13/2023]
Abstract
Blast furnace slag (BFS), a by-product of iron making, has been utilized as silicate fertilizer in Korean and Japanese rice paddy. Silicate fertilizer, which has high contents of active iron and manganese as electron acceptor, was newly known to suppress methane (CH4) emission in flooded rice paddies, but the effect of its long-term application on rice cropping environment is still debatable. To evaluate the effect of silicate fertilization on suppressing CH4 emissions, the changes of CH4 index, indicating the ratio (%) of seasonal CH4 flux at the silicate fertilization treatment to that at the control, were generalized using the global investigation data (42 observations from 8 fields in Bangladesh, China, and Korea). Seasonal CH4 fluxes significantly decreased with increasing silicate fertilization levels. In CH4 index changes, 1.5 Mg ha-1 of silicate fertilizer application (the recommended level of rice cultivation in Korea) decreased by 15% of seasonal CH4 fluxes. Rice grain yield highly increased with increasing silicate fertilization rates and maximized at approximately 4 Mg ha-1 with 18% higher than no-silicate fertilization due to overall improvement of soil properties. To evaluate the long-term silicate fertilization effect on rice cropping environments, silicate (1.5 Mg ha-1 year-1) and non-silicate fertilization treatments were installed in a typical temperate-monsoon climate paddy field in South Korea in 1990. Periodic silicate fertilization significantly increased rice grain productivity by an average of 14% over the control for the last 28 years. This fertilization evidently improved rice quality without changes in chemical quality. Consecutive silicate fertilization effectively improved soil physical and chemical properties but did not increase any acid extractable heavy metal concentration in soil. In conclusion, BFS as silicate fertilizer could be a beneficial amendment to mitigate CH4 emission in the rice paddy and improve soil properties and rice productivity and quality without hazardous material accumulation.
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Affiliation(s)
- Ji Yeon Lim
- Institute of Agriculture and Life Sciences, Gyeongsang National University, 501 Jinju-daero, Jinju 52828, Republic of Korea
| | - Yeong Gyeong Kang
- Korea Foundation of Korean Foundation for Quality, 13th Fl, Woolim Lion's Valley B, 168, Gasan digital 1-ro, Geumcheon-gu, Gasan dong, Seoul, Republic of Korea
| | - Keon Mok Sohn
- Division of Applied Life Science, Gyeongsang National University, 501 Jinju-daero, Jinju 52828, Republic of Korea
| | - Pil Joo Kim
- Institute of Agriculture and Life Sciences, Gyeongsang National University, 501 Jinju-daero, Jinju 52828, Republic of Korea; Division of Applied Life Science, Gyeongsang National University, 501 Jinju-daero, Jinju 52828, Republic of Korea.
| | - Snowie Jane C Galgo
- Division of Applied Life Science, Gyeongsang National University, 501 Jinju-daero, Jinju 52828, Republic of Korea.
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Luo Y, He D. Research status and future challenge for CO 2 sequestration by mineral carbonation strategy using iron and steel slag. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:49383-49409. [PMID: 34331652 DOI: 10.1007/s11356-021-15254-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 06/28/2021] [Indexed: 06/13/2023]
Abstract
Mineral carbonation can simultaneously realize the effective treatment of CO2 and iron and steel slag; thus, it is of great significance for the low carbon and sustainable development of iron and steel industry. In this article, the researches of mineral carbonation process using iron and steel slag as feedstock are reviewed, and the carbonation reaction mechanism and the parameters affecting the reaction rate and carbonation degree are analyzed. Furthermore, the effect of different enforcement approaches, such as ultrasonic enhancement, mixed calcination, microbial enhancement, and cyclic coprocessing on mineral carbonation reaction, is introduced. The additional effects of mineral carbonation, such as solving the problem of poor volume stability of steel slag, weakening the leaching of heavy metal ions, and reducing the pH of the leachate, are also illustrated. Moreover, issues related to mineral carbonation technology that should be emphasized upon soon, such as the production of valuable products, use of industrial wastewater, aqueous phase recycling use, multiparameter coupling analysis, and research on the properties of carbonation residues, are also discussed, which contribute some perspectives to the future development of mineral carbonation of iron and steel slag.
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Affiliation(s)
- Yinbo Luo
- Department of Ferrous Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Dongfeng He
- Department of Ferrous Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
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Recycling of Blast Furnace and Coal Slags in Aided Phytostabilisation of Soils Highly Polluted with Heavy Metals. ENERGIES 2021. [DOI: 10.3390/en14144300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
(1) Background: The growing demand for developing new methods of degraded land remediation is linked to the need to improve the soil environment, including post-industrial soils. Biological methods such as the aided phytostabilisation technique are the most common methods applied to achieve effective remediation. This study aimed to determine the technical potential of methods using novel or yet not used soil amendments, such as blast furnace slag (BFS) and coal slag (CS), with Dactylis glomerata L. as a test plant. (2) Methods: The experiment was conducted on post-industrial area soil with high concentrations of Cu (761 mg/kg), Cd (23.9 mg/kg), Pb (13,539 mg/kg) and Zn (8683 mg/kg). The heavy metal content in roots and the above-ground parts of plants and soil was determined by flame atomic absorption spectrometry. (3) Results: The addition of BFS to the soil was the most effective in increasing Dactylis glomerata L. biomass yield. The Cu, Cd, Pb, and Zn concentrations were higher in the roots than in the above-ground parts of the plants. BFS and CS induced a considerable increase in soil pH, compared to the control treatment. The addition of BFS also produced the greatest significant decrease in the Pb content in soil following the phytostabilisation process. (4) Conclusions: In view of the above, the use of BFS in the aided phytostabilisation in soils contaminated with high levels of Cu, Cd, Pb, and Zn can be recommended for larger-scale in situ projects.
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Marian NM, Giorgetti G, Magrini C, Capitani GC, Galimberti L, Cavallo A, Salvini R, Vanneschi C, Viti C. From hazardous asbestos containing wastes (ACW) to new secondary raw material through a new sustainable inertization process: A multimethodological mineralogical study. JOURNAL OF HAZARDOUS MATERIALS 2021; 413:125419. [PMID: 33930960 DOI: 10.1016/j.jhazmat.2021.125419] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/09/2021] [Accepted: 02/10/2021] [Indexed: 05/21/2023]
Abstract
Nowadays, asbestos-containing wastes (ACW) still represent an important environmental problem and a severe health hazard due to the well known pulmonary diseases derived from asbestos fibers inhalation. Except for a very few cases, ACW are currently confined in controlled landfills, giving rise to increasingly high amounts of still hazardous wastes. A promising alternative to landfill confinement is represented by ACW inertization, but the high cost of the inertization processes so far proposed by the scientific community have hampered the creation of actually operative plants. In this paper, we explore the possibility to use an innovative process that ensures the obtainment of asbestos-free inert material in an exceptionally short processing time, thus greatly reducing cost-related problems. The efficacy of the inertization process has been verified through accurate mineralogical investigations on both chrysotile and crocidolite de-activated fibers, through X-ray diffraction, scanning and transmission electron microscopy. Overall mineralogical, microstructural and granulometric characteristics of the inert bulk material suggest that it could be successfully re-used as a secondary raw material in ceramic industries. This innovative inertization procedure could therefore provide an effective and economically sustainable solution for ACW management.
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Affiliation(s)
- N M Marian
- Department of Physical Science, Earth and Environment, DSFTA (UniSi), V. Laterina 8, I-53100 Siena, Italy
| | - G Giorgetti
- Department of Physical Science, Earth and Environment, DSFTA (UniSi), V. Laterina 8, I-53100 Siena, Italy
| | - C Magrini
- Department of Physical Science, Earth and Environment, DSFTA (UniSi), V. Laterina 8, I-53100 Siena, Italy
| | - G C Capitani
- Department of Earth and Environmental Sciences, DISAT (UniMIB), Piazza della Scienza, 4-20126 Milano, Italy
| | - L Galimberti
- Department of Earth and Environmental Sciences, DISAT (UniMIB), Piazza della Scienza, 4-20126 Milano, Italy
| | - A Cavallo
- Department of Earth and Environmental Sciences, DISAT (UniMIB), Piazza della Scienza, 4-20126 Milano, Italy
| | - R Salvini
- Department of Physical Science, Earth and Environment, DSFTA (UniSi), V. Laterina 8, I-53100 Siena, Italy; Department of Environment, Earth and Physical Sciences and Centre for GeoTechnologies CGT (UniSi) Via Vetri Vecchi 34, 52027, San Giovanni Valdarno (AREZZO), Italy
| | - C Vanneschi
- Department of Physical Science, Earth and Environment, DSFTA (UniSi), V. Laterina 8, I-53100 Siena, Italy; Department of Environment, Earth and Physical Sciences and Centre for GeoTechnologies CGT (UniSi) Via Vetri Vecchi 34, 52027, San Giovanni Valdarno (AREZZO), Italy
| | - C Viti
- Department of Physical Science, Earth and Environment, DSFTA (UniSi), V. Laterina 8, I-53100 Siena, Italy.
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A Review of Modified Steel Slag Application in Catalytic Pyrolysis, Organic Degradation, Electrocatalysis, Photocatalysis, Transesterification and Carbon Capture and Storage. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11104539] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
As a by-product of the iron and steel industry, steel slag is rich in catalytically active substances and can therefore be used as a solid catalyst. Many studies have shown that the application potential of steel slag in catalysis is huge, which provides new development space for its application, thereby increasing its additional utilization value. This article primarily reviews the research progress in catalytic fields such as catalytic pyrolysis, organic degradation, electrocatalysis, photocatalysis, transesterification, and carbon capture and storage, as well as the modification methods of steel slag. The catalytic performance of the modified steel slag has been further improved, and it has the meaningful characteristics of high efficiency, cleanliness, and low costs.
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Pressurized in situ X-ray diffraction insights into super/subcritical carbonation reaction pathways of steelmaking slags and constituent silicate minerals. J Supercrit Fluids 2021. [DOI: 10.1016/j.supflu.2021.105191] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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