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Dai M, Di J, Zhang T, Li T, Dong Y, Bao S, Fu S. Reparation of nano-FeS by ultrasonic precipitation for treatment of acidic chromium-containing wastewater. Sci Rep 2024; 14:211. [PMID: 38168529 PMCID: PMC10761992 DOI: 10.1038/s41598-023-50070-y] [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: 09/24/2023] [Accepted: 12/14/2023] [Indexed: 01/05/2024] Open
Abstract
Nano-FeS is prone to agglomeration in the treatment of chromium-containing wastewater, and ultrasonic precipitation was used to synthesize nano-FeS to increase its dispersion. The optimization of the preparation method was carried out by single factor method (reaction temperature, Fe/S molar ratio and FeSO4 dropping flow rate) and response surface methodology. Dynamic experiments were constructed to investigate the long-term remediation effect and water column changes of nano-FeS and its solid particles. The changes of the remediation materials before and after the reaction were observed by SEM, and the mechanism of the remediation of chromium-containing wastewater by nano-FeS prepared by ultrasonication was revealed by XRD. The results showed that the reaction temperature of 12 °C, Fe/S molar ratio of 3.5 and FeSO4 dropping flow rate of 0.5 mL/s were the best parameters for the preparation of nano-FeS. The nano-FeS has efficient dispersion and well-defined mesoporous structure in the form of needles and whiskers of 40-80 nm. The dynamic experiments showed that the average removal of Cr(VI) and total chromium by nano-FeS and its immobilized particles were 94.97% and 63.51%, 94.93% and 45.76%, respectively. Fe2+ and S2- ionized by the FeS nanoparticles rapidly reduced Cr(VI) to Cr(III). Part of S2- may reduce Fe3+ to Fe2+, forming a small iron cycle that gradually decreases with the ion concentration. Cr(III) and Fe2+ form Cr(OH)3 and FeOOH, respectively, with the change of aqueous environment. Another part of S2- reacts with Cr(III) to form Cr2S3 precipitate or is oxidized to singlet sulfur. The FeS nanoparticles change from short rod-shaped to spherical shape. Compared with the conventional chemical precipitation method, the method used in this study is simple, low cost, small particle size and high removal rate per unit.
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Affiliation(s)
- Mengjia Dai
- College of Mining, Liaoning Technical University, Fuxin, 123000, China
| | - Junzhen Di
- College of Civil Engineering, Liaoning Technical University, Fuxin, 123000, China.
| | - Ting Zhang
- College of Civil Engineering, Liaoning Technical University, Fuxin, 123000, China
| | - Tuoda Li
- College of Civil Engineering, Liaoning Technical University, Fuxin, 123000, China
| | - Yanrong Dong
- College of Civil Engineering, Liaoning Technical University, Fuxin, 123000, China
| | - Sihang Bao
- College of Mining, Liaoning Technical University, Fuxin, 123000, China
| | - Saiou Fu
- College of Civil Engineering, Liaoning Technical University, Fuxin, 123000, China
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Hu Z, Zhou Z, Guo J, Liu Y, Yang S, Guo Y, Wang L, Sun Z, Yang Z. Surface Engineering Design of Nano FeS@ Stenotrophomonas sp. by Ultrasonic Chemical Method for Efficient U(VI) and Th(IV) Extraction. TOXICS 2023; 11:297. [PMID: 37112524 PMCID: PMC10144925 DOI: 10.3390/toxics11040297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/14/2023] [Accepted: 03/21/2023] [Indexed: 06/19/2023]
Abstract
Nano-FeS has great potential for use in the management of radioactive contaminants. In this paper, we prepared a FeS@Stenotrophomonas sp. composite material by ultrasonic chemistry, and it showed excellent removal of uranium and thorium from the solution. Through optimization of the experimental conditions, it was found that the maximum adsorption capacities for uranium and thorium reached 481.9 and 407.5 mg/g for a composite made with a synthetic ratio of 1:1, pH 5 and 3.5, respectively, for U and Th, and sonication for 20 min. Compared with those of FeS or Stenotrophomonas alone, the removal capacity was greatly improved. The results of a mechanistic study indicated that efficient removal of the uranium and thorium was due to ion exchange, reduction, and microbial surface adsorption. FeS@Stenotrophomonas sp. could be applied to U(VI) and Th(IV) extraction for radioactive water.
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Affiliation(s)
- Zhongqiang Hu
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China
- School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, China
| | - Zhongkui Zhou
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China
- School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, China
| | - Jianping Guo
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China
- School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, China
| | - Yong Liu
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China
- School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, China
| | - Shunjing Yang
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China
- School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, China
| | - Yadan Guo
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China
- School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, China
| | - Liping Wang
- School of Environmental and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China
| | - Zhanxue Sun
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang 330013, China
- School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang 330013, China
| | - Zhihui Yang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
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Pan Y, Zhang C, Sheng G, Li M, Linghu W, Huang R. Highly efficient scavenging of uranium(VI) by molybdenum disulfide loaded ferrous sulfide composites: Kinetics, thermodynamics and mechanism aspects. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2022.104614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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Study of the 137Cs adsorption performance of ion-eroded cement. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08422-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Chen X, Wang Y, Lv J, Feng Z, Liu Y, Xia H, Li Y, Wang C, Zeng K, Liu Y, Yuan D. Simple one-pot synthesis of manganese dioxide modified bamboo-derived biochar composite for uranium(VI) removal. NEW J CHEM 2022. [DOI: 10.1039/d2nj02292c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Exploitation of bamboo-derived biochar offers a lucrative opportunity for using moso bamboo due to its short growth cycle, large quantity and universality. Novel MnO2 modified bamboo-derived biochar composites (MnO2@BBC) were...
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