Study on the management efficiency of lanthanum/iron co-modified attapulgite on sediment phosphorus load.
Autor: | Qu Y; State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China; School of Ocean Science and Technology, Dalian University of Technology, Liaoning Province, Panjin, 124221, PR China., Zhao L; National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental, Beijing, 100012, PR China., Jin Z; State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China., Yang H; State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China., Tu C; State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China., Che F; National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental, Beijing, 100012, PR China., Russel M; School of Ocean Science and Technology, Dalian University of Technology, Liaoning Province, Panjin, 124221, PR China., Song X; State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China., Huang W; State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China; National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental, Beijing, 100012, PR China. Electronic address: huangwei@dhu.edu.cn. |
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Jazyk: | angličtina |
Zdroj: | Chemosphere [Chemosphere] 2023 Feb; Vol. 313, pp. 137315. Date of Electronic Publication: 2022 Nov 18. |
DOI: | 10.1016/j.chemosphere.2022.137315 |
Abstrakt: | Attapulgite co-modified by lanthanum-iron (MT-LHMT) was used to study its effectiveness and mechanism in controlling phosphorus release from sediments. MT-LHMT has high adsorption capacity for phosphate and the maximum adsorption capacity of MT-LHMT to phosphate can reach 75.79 mg/g. The mechanism mainly involved electrostatic action, surface precipitation and ligand exchange between MT-LHMT bonded hydroxyl and phosphate to form La-O-P and Fe-O-P inner-sphere complexes. MT-LHMT has excellent adsorption performance in the pH range of 3-8. In addition to HCO Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2022 Elsevier Ltd. All rights reserved.) |
Databáze: | MEDLINE |
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