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Sivasankar V, Omine K, Zhang Z, Shi S, Sano H, Chicas SD. Plaster board waste (PBW) - A potential fluoride leaching source in soil/water environments and, fluoride immobilization studies using soils. ENVIRONMENTAL RESEARCH 2023; 218:115005. [PMID: 36493809 DOI: 10.1016/j.envres.2022.115005] [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: 09/17/2022] [Revised: 12/02/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
Plaster board waste generated from industries, usually contains major proportion of calcium as calcium sulfate. In addition, fluoride is remarkably one among the constituents of this waste material which leaches off into the soil and aquatic environments and causes fluoride pollution. In order to simulate how the dumping of PBW causes fluoride contamination in soil and water sources, shaking and stirring based batch-mode leaching studies were conducted. These studies explored the leaching of fluoride as a function of particle size, agitation time, pH of the leaching solvent (distilled water), L/S (water: PBW) ratio, temperature and electrolytes. It was explored that 1 g of plaster board waste contains18.54 mg F per gram of PBP. High leaching of 3.72 mg F per liter was studied at pH 6.02 with Ca2+ and TDS contents of 1050 mg L-1 and1640 mg L-1 respectively. The influence of sodium electrolytes such as chloride, nitrate, hydrogen carbonate, carbonate, sulfate, borate, phosphate and acetate on the leaching of fluoride from PBW was studied. The influence of fluoride leaching by sodium phosphate recorded a high value of 12.75 mg L-1 with no detectable amount of calcium ions. The influence of eight electrolytic mixtures each containing five sodium electrolytes on fluoride leaching corroborated the highest leaching in mixtures containing phosphate followed by hydrogen carbonate/carbonate. Solutions of calcium and aluminium chloride and their mixture were used to measure the rate of leachable fluoride in solution. Furthermore, the fluoride leaching at different temperatures and acids was studied. Naturally occurring soils when blended with PBW were observed to immobilize fluoride and lessened the amount of leaching fluoride in water. Various characterization studies such as FTIR, Raman, FESEM (with EDS), XRD and XPS were carried out for PBW and its treated samples using different electrolytes. Fluoride leaching proportionate to the precipitation of carbonate and phosphate was recorded in the case of appropriate electrolyte and mixtures.
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Affiliation(s)
- V Sivasankar
- Post Graduate and Research Department of Chemistry, Pachaiyappa's College (affiliated to University of Madras), Chennai, 600 030, Tamil Nadu, India.
| | - K Omine
- Geo-environmental Laboratory, Department of Civil Engineering, Graduate School of Engineering, Nagasaki University, Nagasaki, 852 8521, Japan.
| | - Z Zhang
- Geo-environmental Laboratory, Department of Civil Engineering, Graduate School of Engineering, Nagasaki University, Nagasaki, 852 8521, Japan
| | - S Shi
- Geo-environmental Laboratory, Department of Civil Engineering, Graduate School of Engineering, Nagasaki University, Nagasaki, 852 8521, Japan
| | - H Sano
- Division of Chemistry and Materials Science, Graduate School of Engineering, Nagasaki University, Nagasaki, 852 8521, Japan
| | - S D Chicas
- Humboldt-Universitat zu Berlin, Integrative Research Institute on Transformations of Human-Environment Systems (IRI THESys), Unter Den Linden 6, 10099, Berlin, Germany
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Li X, Xu D, Yang X, Wu J, Wang B, Li X, Wang X, Zhang Z. Influence of Aluminum on Morphologies and Crystallization Kinetics of Hemihydrate Calcium Sulfate in the Hemihydrate Process of Phosphoric Acid Production. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiangqiao Li
- Ministry of Education Research Center for Comprehensive Utilization and Clean Processing Engineering of Phosphorus Resources, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Dehua Xu
- Ministry of Education Research Center for Comprehensive Utilization and Clean Processing Engineering of Phosphorus Resources, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xiushan Yang
- Ministry of Education Research Center for Comprehensive Utilization and Clean Processing Engineering of Phosphorus Resources, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Junhu Wu
- Ministry of Education Research Center for Comprehensive Utilization and Clean Processing Engineering of Phosphorus Resources, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Bo Wang
- Ministry of Education Research Center for Comprehensive Utilization and Clean Processing Engineering of Phosphorus Resources, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xiaobin Li
- Ministry of Education Research Center for Comprehensive Utilization and Clean Processing Engineering of Phosphorus Resources, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xinlong Wang
- Ministry of Education Research Center for Comprehensive Utilization and Clean Processing Engineering of Phosphorus Resources, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Zhiye Zhang
- Ministry of Education Research Center for Comprehensive Utilization and Clean Processing Engineering of Phosphorus Resources, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
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Wei Z, Deng Z. Research hotspots and trends of comprehensive utilization of phosphogypsum: Bibliometric analysis. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2022; 242:106778. [PMID: 34847525 DOI: 10.1016/j.jenvrad.2021.106778] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 11/18/2021] [Accepted: 11/20/2021] [Indexed: 06/13/2023]
Abstract
Phosphogypsum is a by-product of the phosphate fertilizer industry. It is generally treated by stacking, which not only causes environmental pollution, but also wastes resources. Therefore, the harmless, comprehensive, and high-value utilization of phosphogypsum has attracted more and more scholars around the world. From the perspective of bibliometrics, this paper systematically and comprehensively describes the research progress, trends and hot spots of phosphogypsum resource utilization. This article is based on a scientific network database, and a total of 1067 articles from 1985 to 2020 were collected. Then, use VOSViewer software to perform co-occurrence, co-citation analysis and cluster analysis. The visual analysis results demonstrate that the research on the resource utilization of phosphogypsum shows the characteristics of rapid growth. The active countries are mainly China, Brazil, Spain and the United States. Four of the top 10 active organizations are from China. It systematically expounds the changes in research hotspots in this field at different stages and possible future research hotspots. Including the gradual attention to the preparation of phosphogypsum building materials, phosphogypsum adsorption materials, and radioactive elements in phosphogypsum; the extraction of rare earth elements from phosphogypsum; the use of phosphogypsum to prepare fertilizer or soil improvement. Research shows that phosphogypsum can be reasonably designed, transformed, and used in different fields.However, the radioactivity contained in phosphogypsum should be paid attention to because it has an impact on humans and the environment. We believe that this research provides a comprehensive and systematic overview for future research on phosphogypsum resource utilization.
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Affiliation(s)
- Zhongqi Wei
- College of Mining, Guizhou University, Guiyang, 550025, China.
| | - Zhengbin Deng
- College of Mining, Guizhou University, Guiyang, 550025, China; National & Local Joint Laboratory of Engineering for Effective Utilization of Regional Mineral Resources from Karst Areas, Guiyang, 550025, China; Guizhou Key Laboratory of Comprehensive Utilization of Non-metallic Mineral Resources, Guiyang, 550025, China.
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4
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Du M, Wang J, Dong F, Wang Z, Yang F, Tan H, Fu K, Wang W. The study on the effect of flotation purification on the performance of α-hemihydrate gypsum prepared from phosphogypsum. Sci Rep 2022; 12:95. [PMID: 34997099 PMCID: PMC8742063 DOI: 10.1038/s41598-021-04122-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 12/01/2021] [Indexed: 11/09/2022] Open
Abstract
Phosphogypsum (PG) is a massive industrial solid waste. In this paper, PG was purified by flotation method, and α-hemihydrate gypsum (α-HH) was prepared by the autoclaving method. The morphology of α-HH was adjusted by adding different doses of Maleic acid and Aluminium sulfate. The results showed that after flotation purification, the impurity content in PG was significantly reduced, the soluble phosphorus content decreased from 0.48 to 0.07%, the PG purity increased from 73.12 to 94.37%, and the PG whiteness risen from 19.4 to 40.5. Then the performance of α-HH prepared from PG before and after purification was compared. Fixing the amount of aluminium sulfate at 0.2 wt%, the reaction temperature at 140 °C, and the reaction time at 120 min, the average length/diameter ratio of α-HH crystals decreased from 7.2 to 0.6 as the amount of Maleic acid increased from 0 to 0.17 wt%. When the amount of Maleic acid was 0.13 wt%, the α-hemihydrate gypsum reached the best mechanical properties. The mechanical strength of high strength gypsum prepared from PG concentrate was significantly better than that of raw PG, indicating that flotation purification can effectively improve the performance of PG. In this study, a new method of PG purification and resource utilization was proposed.
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Affiliation(s)
- Mingxia Du
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China.,Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Jinming Wang
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China. .,State Key Laboratory of Mineral Processing, Beijing, 100160, Beijing, China. .,Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China. .,Beijing Building Materials Academy of Sciences Research Co., Ltd., Beijing, 100041, China. .,State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing, 100041, China.
| | - Faqin Dong
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China.,Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Zhaojia Wang
- Beijing Building Materials Academy of Sciences Research Co., Ltd., Beijing, 100041, China.,State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing, 100041, China
| | - Feihua Yang
- Beijing Building Materials Academy of Sciences Research Co., Ltd., Beijing, 100041, China.,State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing, 100041, China
| | - Hongbin Tan
- Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Kaibin Fu
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China.,Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Weiqing Wang
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China.,Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
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Sun X, Li Z, Wang X, Zhang G, Cui P, Shen H. Single-Crystal Regular Hexagonal Microplates of Two-Dimensional α-Calcium Sulfate Hemihydrate Preparation from Phosphogypsum in Na2SO4 Aqueous Solution. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01555] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Xiangbin Sun
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China
| | - Zheng Li
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China
| | - Xianshun Wang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China
| | - Genlei Zhang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China
- School of Materials Science and Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China
- Anhui Liuguo Chemical Co. Ltd, Tongling 244021, China
| | - Peng Cui
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology, Tunxi Road 193, Hefei 230009, PR China
| | - Hao Shen
- Anhui Liuguo Chemical Co. Ltd, Tongling 244021, China
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Sun X, Wang X, Zhang G, Cui P, Shen H. Effect of Cu 2+ on the nucleation kinetics and crystallization of rod-shaped CaSO 4·2H 2O in aqueous solution. RSC Adv 2019; 9:36020-36026. [PMID: 35540598 PMCID: PMC9074933 DOI: 10.1039/c9ra07640a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 10/29/2019] [Indexed: 01/05/2023] Open
Abstract
In this study, a simple and efficient strategy is developed to synthesize rod-like CaSO4·2H2O (DH) crystals with tunable aspect ratio in aqueous solution using Cu2+ as modifier. The aspect ratio and length of the DH crystals are effectively reduced to 5.7 : 1 and about 35 μm in the presence of Cu2+, respectively. The interfacial tension value (γ) in the aqueous solution is improved significantly with the assistance of Cu2+, yet the nucleation rate (J) of the DH crystal is decreased sharply. The interfacial tension value (γ) in the aqueous solution is improved and the nucleation rate (J) of the DH crystal is drastically decreased due to the introduction of Cu2+, leading to the induction time of the DH crystallization being extended from 4 min to 25 min. The diversification of morphology for the DH crystals is incited by the changes of nucleation kinetics and Cu2+ incorporated into the crystal lattice, affecting the crystal growth habit, and finally controlling the growth of DH crystals in aqueous solution. The induction time of DH crystals is extended by the introduction of Cu2+.![]()
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Affiliation(s)
- Xiangbin Sun
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology Hefei 230009 China
| | - Xianshun Wang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology Hefei 230009 China
| | - Genlei Zhang
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology Hefei 230009 China .,School of Materials Science and Engineering, Hefei University of Technology Hefei 230009 China.,Anhui Liuguo Chemical Co. Ltd Tongling 244021 China
| | - Peng Cui
- School of Chemistry and Chemical Engineering, Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering, Hefei University of Technology Hefei 230009 China
| | - Hao Shen
- Anhui Liuguo Chemical Co. Ltd Tongling 244021 China
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Sun X, Zhang G, Cui P. Aspect ratio-controlled preparation of α-CaSO4·0.5H2O from phosphogypsum in potassium tartrate aqueous solution. RSC Adv 2019; 9:21601-21607. [PMID: 35518860 PMCID: PMC9066511 DOI: 10.1039/c9ra03569a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 06/28/2019] [Indexed: 01/11/2023] Open
Abstract
In this study, a simple and efficient strategy is developed to synthesize rod-shaped α-CaSO4·0.5H2O crystals with tunable aspect ratio from industrial phosphogypsum only in potassium tartrate aqueous solution at a low temperature. Industrial phosphogypsum can be effectively converted into rod-shaped α-CaSO4·0.5H2O crystals with the assistance of potassium tartrate, and the aspect ratio of α-CaSO4·0.5H2O crystals gradually decreases from 52 : 1 to 1 : 1 with increasing the concentration of potassium tartrate. The formation process of the rod-shaped α-CaSO4·0.5H2O crystals in this system involves the dissolution of CaSO4·2H2O and nucleation of α-CaSO4·0.5H2O crystals. The tartrate ions from potassium tartrate in this system preferentially bind to (001) and (002) facets of α-CaSO4·0.5H2O crystals, inhibiting the growth of α-CaSO4·0.5H2O crystals along the c-axis and controlling its morphology and aspect ratio. The conversion of industrial gypsum to rod-shaped α-CaSO4·0.5H2O crystals with tunable aspect ratio in a H2O system is realized with potassium tartrate.![]()
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Affiliation(s)
- Xiangbin Sun
- School of Chemistry and Chemical Engineering
- Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering
- Hefei University of Technology
- Hefei 230009
- PR China
| | - Genlei Zhang
- School of Chemistry and Chemical Engineering
- Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering
- Hefei University of Technology
- Hefei 230009
- PR China
| | - Peng Cui
- School of Chemistry and Chemical Engineering
- Anhui Province Key Laboratory of Controllable Chemistry Reaction and Material Chemical Engineering
- Hefei University of Technology
- Hefei 230009
- PR China
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8
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Effects of metal ions on the morphology of calcium sulfate hemihydrate whiskers by hydrothermal method. Front Chem Sci Eng 2017. [DOI: 10.1007/s11705-017-1665-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Guan Q, Sun W, Hu Y, Yin Z, Guan C. A facile method of transforming FGD gypsum to α-CaSO 4·0.5H 2O whiskers with cetyltrimethylammonium bromide (CTAB) and KCl in glycerol-water solution. Sci Rep 2017; 7:7085. [PMID: 28765604 PMCID: PMC5539100 DOI: 10.1038/s41598-017-07548-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 06/29/2017] [Indexed: 11/09/2022] Open
Abstract
A facile method to transform flue gas desulfurization gypsum (FGD gypsum) to α- calcium sulfate hemihydrate (α-HH) whiskers with high aspect ratios mediated by cetyltrimethylammonium bromide (CTAB) and KCl in glycerol-water solutions was studied. Addition of KCl facilitated the dissolution of calcium sulfate dihydrate (DH) and created a much higher supersaturation, which could come into being a larger driving force for the phase transformation from DH to α-HH. CTAB as the crystal modifier can significantly promoted 1-D growth of α-HH whiskers along the c axis and the presence of 0.25% CTAB (by weight of FGD gypsum) resulted in the increase of the average aspect ratio of α-HH whiskers from 28.9 to 188.4, which might be attributed to the preferential adsorption of C16H33(CH3)3N+ on the negative side facets of α-HH crystal.
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Affiliation(s)
- Qingjun Guan
- School of Mineral Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Wei Sun
- School of Mineral Processing and Bioengineering, Central South University, Changsha, 410083, China.
| | - Yuehua Hu
- School of Mineral Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Zhigang Yin
- School of Mineral Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Changping Guan
- School of Mineral Processing and Bioengineering, Central South University, Changsha, 410083, China
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Influence of Alkyl Trimethyl Ammonium Bromides on Hydrothermal Formation of α-CaSO4·0.5H2O Whiskers with High Aspect Ratios. CRYSTALS 2017. [DOI: 10.3390/cryst7010028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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