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Han Y, Su Z, Ma X, Fu X, Xu H, Liu L, Liu M. Preparation of Fe/C-MgCO 3 micro-electrolysis fillers and mechanism of phosphorus removal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:13372-13392. [PMID: 36131176 DOI: 10.1007/s11356-022-23057-x] [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: 02/16/2022] [Accepted: 09/13/2022] [Indexed: 06/15/2023]
Abstract
Iron-carbon micro-electrolysis is effective for the removal of phosphorus in wastewater; however, meeting the stringent emission standards required for treatment is difficult. To meet these treatment standards, modified micro-electrolytic fillers were prepared from iron dust, powdered activated carbon, clay, and additives using an elevated temperature roasting process under an inert atmosphere. The results show that among several additives, the modified micro-electrolytic (Fe/C-MgCO3) fillers using MgCO3 were the most effective at phosphorus removal. The preparation conditions for the Fe/C-MgCO3 fillers and their effects on phosphorus removal performance were investigated. Under the optimal preparation conditions (calcination temperature: 800 °C, Fe/C = 4:1, clay content 20%, and 5% MgCO3), the filler yielded a high compressive strength of 3.5 MPa, 1 h water absorption rate of 25.7%, and specific surface area and apparent density of 154.2 m2/g and 2689.2 kg/m3, respectively. The iron-carbon micro-electrolysis process removed 97% of phosphorus in the wastewater by using the Fe/C-MgCO3 fillers, which was 14% more than the Fe/C filler. Electrostatic adsorption and surface precipitation were identified as the main phosphorus removal mechanisms, and the surface of the Fe/C-MgCO3 filler was continuously updated. These results demonstrated that Fe/C-MgCO3 is a promising filler for phosphorus removal in water treatment.
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Affiliation(s)
- Yanhe Han
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, People's Republic of China.
| | - Zhimin Su
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, People's Republic of China
| | - Xuejiao Ma
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, People's Republic of China
| | - Xiaolu Fu
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, People's Republic of China
| | - Han Xu
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, People's Republic of China
| | - Lina Liu
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, People's Republic of China
| | - Meili Liu
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, People's Republic of China
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Zhang Z, Hu YB, Ruan W, Ai H, Yuan B, Fu ML. Highly improved dechlorination of 2,4-dichlorophenol in aqueous solution by Fe/Ni nanoparticles supported by polystyrene resin. CHEMOSPHERE 2021; 266:128976. [PMID: 33234308 DOI: 10.1016/j.chemosphere.2020.128976] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/16/2020] [Accepted: 11/12/2020] [Indexed: 06/11/2023]
Abstract
2,4-dichlorophenol (2,4-DCP) is a typical chlorophenol that has been widely used in industrial production and caused serious pollution to the environment. In this study, the performance of Fe/Ni bimetallic nanoparticles supported on polystyrene cation exchange resin (Fe/Ni-D072) to remove 2,4-DCP was evaluated. The effects including the doping amount of Ni, the dosage of Fe/Ni-DCP, the initial concentration of 2,4-DCP, and pH value of the solution on the removal efficiency were also investigated. The results showed that when the initial concentration of 2,4-DCP was 20 mg/L and pH = 7.3, 90% of 2,4-DCP could be dechlorinated by Fe/Ni-D072 (Ni% = 30 wt%, dosage: 6.7 g/L) after 12 h reaction. The dechlorination process followed a pseudo-first-order model, and the reaction constant was 0.252 h-1. In addition, the effects of humic acid and common coexisting ions on dechlorination were studied. The results showed that humic acid with a low concentration (5 mg/L) and CO32- restrained the degradation of 2,4-DCP. The dechlorination products of 2,4-DCP were identified by HPLC and the result showed phenol was the main product with a slight amount of 2-CP as the dechlorination intermediate, and 4-CP was barely detected. These results suggest that Fe/Ni-D072 was a promising catalytic material for the removal of chlorophenol and has great application prospects in groundwater remediation.
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Affiliation(s)
- Zhiyong Zhang
- Xiamen Engineering & Technology Research Center for Urban Water Environment Planning and Remediation, College of Civil Engineering, Huaqiao University, Xiamen, Fujian, 361021, P. R. China
| | - Yi-Bo Hu
- Xiamen Engineering & Technology Research Center for Urban Water Environment Planning and Remediation, College of Civil Engineering, Huaqiao University, Xiamen, Fujian, 361021, P. R. China.
| | - Wenjuan Ruan
- College of Applied Science and Engineering, Fuzhou Institute of Technology, Fuzhou, Fujian, 350120, P. R. China
| | - Huiying Ai
- Xiamen Engineering & Technology Research Center for Urban Water Environment Planning and Remediation, College of Civil Engineering, Huaqiao University, Xiamen, Fujian, 361021, P. R. China
| | - Baoling Yuan
- Xiamen Engineering & Technology Research Center for Urban Water Environment Planning and Remediation, College of Civil Engineering, Huaqiao University, Xiamen, Fujian, 361021, P. R. China.
| | - Ming-Lai Fu
- Xiamen Engineering & Technology Research Center for Urban Water Environment Planning and Remediation, College of Civil Engineering, Huaqiao University, Xiamen, Fujian, 361021, P. R. China.
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Ghasemi A, Ghasemi Z. Modifying the surface of TEOS xerogel by metal ion Zn(II). RUSS J APPL CHEM+ 2017. [DOI: 10.1134/s1070427217050251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Enhanced PAHs adsorption using iron-modified coal-based activated carbon via microwave radiation. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.03.050] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Gao W, Zhang Y, Zhang X, Duan Z, Wang Y, Qin C, Hu X, Wang H, Chang S. Permeable reactive barrier of coarse sand-supported zero valent iron for the removal of 2,4-dichlorophenol in groundwater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:16889-16896. [PMID: 26104904 DOI: 10.1007/s11356-015-4912-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 06/16/2015] [Indexed: 06/04/2023]
Abstract
In this study, coarse sand-supported zero valent iron (ZVI) composite was synthesized by adding sodium alginate to immobilize. Composite was detected by scanning electron microscope (SEM), X-ray diffraction (XRD), and X-ray fluorescence (XRF). SEM results showed that composite had core-shell structure and a wide porous distribution pattern. The synthesized composite was used for degradation of 2,4-dichlorophenol (2,4-DCP) contamination in groundwater. Experimental results demonstrated that degradation mechanism of 2,4-DCP using coarse sand-supported ZVI included adsorption, desorption, and dechlorination. 2,4-DCP adsorption was described as pseudo-second-order kinetic model. It was concluded that dechlorination was the key reaction pathway, ZVI and hydrogen are prime reductants in dechlorination of 2,4-DCP using ZVI.
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Affiliation(s)
- Weichun Gao
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing, 100124, People's Republic of China
| | - Yongxiang Zhang
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing, 100124, People's Republic of China.
| | - Xiaoye Zhang
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing, 100124, People's Republic of China
| | - Zhilong Duan
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing, 100124, People's Republic of China
| | - Youhao Wang
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing, 100124, People's Republic of China
| | - Can Qin
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing, 100124, People's Republic of China
| | - Xiao Hu
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing, 100124, People's Republic of China
| | - Hao Wang
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing, 100124, People's Republic of China
| | - Shan Chang
- Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing, 100124, People's Republic of China
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Photocatalytic degradation of 2,4-dichlorophenol over Fe-ZnO catalyst under visible light. KOREAN J CHEM ENG 2015. [DOI: 10.1007/s11814-014-0379-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Byeon SH, Kavitha D, Ponvel K, Kim KM, Lee CH. Surface modified granular activated carbon for enhancement of nickel adsorption from aqueous solution. KOREAN J CHEM ENG 2010. [DOI: 10.1007/s11814-009-0274-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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