Distribution and diffusion thermodynamic characteristics of phosphorus at the interface between river sediment and water under the influence of artificial disturbance
Artificial disturbance affects the migration of phosphorus (P) at the interface between river sediments and water. In the present research, we sampled three sections of the Yitong River in Changchun City, China, in order to obtain representative samples of city, town, and rural reaches. Overlying wa...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IWA Publishing
2022-08-01
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| Series: | Water Supply |
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| Online Access: | http://ws.iwaponline.com/content/22/8/6615 |
| _version_ | 1811209382515441664 |
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| author | Yujia Song Shoufa Song Yan Huang |
| author_facet | Yujia Song Shoufa Song Yan Huang |
| author_sort | Yujia Song |
| collection | DOAJ |
| description | Artificial disturbance affects the migration of phosphorus (P) at the interface between river sediments and water. In the present research, we sampled three sections of the Yitong River in Changchun City, China, in order to obtain representative samples of city, town, and rural reaches. Overlying water and sediment samples were obtained in September 2021 during the dry period. In our experiments, we determined the distribution of different forms of P, diffusion flux of P at the interface, as well as P adsorption parameters. The results showed that concentrations of four P species in the sediments followed the order: Ca-P > Fe-P > Acid extracted phosphorus > Alkali extracted phosphorus. The diffusion flux of -P in each reach was positive, showing that sediments were an important P source for the overlying water. The -P content in the interstitial water of sediments was significantly correlated with that in the overlying water. This indicated that P diffused into the overlying water in the form of -P under most circumstances. The adsorption parameters gradually decreased from upstream to downstream. These data indicated that potential for phosphorus release from downstream sediments was higher than that from upstream sediments. This likely occurred because, downstream, a greater artificial disturbance intensity is observed.
HIGHLIGHTS
Effect of human disturbance on phosphorus migration and diffusion at river sediment–water interface.;
P diffusion flux at the water–sediment interface.;
Thermodynamic characteristics of phosphorus diffusion at water sediment interface.; |
| first_indexed | 2024-04-12T04:38:32Z |
| format | Article |
| id | doaj.art-012c43dce01c4fb0a71bd8bacaf18d88 |
| institution | Directory Open Access Journal |
| issn | 1606-9749 1607-0798 |
| language | English |
| last_indexed | 2024-04-12T04:38:32Z |
| publishDate | 2022-08-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Supply |
| spelling | doaj.art-012c43dce01c4fb0a71bd8bacaf18d882022-12-22T03:47:43ZengIWA PublishingWater Supply1606-97491607-07982022-08-012286615663010.2166/ws.2022.277277Distribution and diffusion thermodynamic characteristics of phosphorus at the interface between river sediment and water under the influence of artificial disturbanceYujia Song0Shoufa Song1Yan Huang2 College of Tourism and Geographical Science, Jilin Normal University, 1301 Haifeng Street, Siping, China Northeast Coal Environmental Protection Research Institute, 366 Haoyue Road, Changchun, China College of Tourism and Geographical Science, Jilin Normal University, 1301 Haifeng Street, Siping, China Artificial disturbance affects the migration of phosphorus (P) at the interface between river sediments and water. In the present research, we sampled three sections of the Yitong River in Changchun City, China, in order to obtain representative samples of city, town, and rural reaches. Overlying water and sediment samples were obtained in September 2021 during the dry period. In our experiments, we determined the distribution of different forms of P, diffusion flux of P at the interface, as well as P adsorption parameters. The results showed that concentrations of four P species in the sediments followed the order: Ca-P > Fe-P > Acid extracted phosphorus > Alkali extracted phosphorus. The diffusion flux of -P in each reach was positive, showing that sediments were an important P source for the overlying water. The -P content in the interstitial water of sediments was significantly correlated with that in the overlying water. This indicated that P diffused into the overlying water in the form of -P under most circumstances. The adsorption parameters gradually decreased from upstream to downstream. These data indicated that potential for phosphorus release from downstream sediments was higher than that from upstream sediments. This likely occurred because, downstream, a greater artificial disturbance intensity is observed. HIGHLIGHTS Effect of human disturbance on phosphorus migration and diffusion at river sediment–water interface.; P diffusion flux at the water–sediment interface.; Thermodynamic characteristics of phosphorus diffusion at water sediment interface.;http://ws.iwaponline.com/content/22/8/6615adsorptionartificial disturbancephosphorussediment–watertransfer |
| spellingShingle | Yujia Song Shoufa Song Yan Huang Distribution and diffusion thermodynamic characteristics of phosphorus at the interface between river sediment and water under the influence of artificial disturbance Water Supply adsorption artificial disturbance phosphorus sediment–water transfer |
| title | Distribution and diffusion thermodynamic characteristics of phosphorus at the interface between river sediment and water under the influence of artificial disturbance |
| title_full | Distribution and diffusion thermodynamic characteristics of phosphorus at the interface between river sediment and water under the influence of artificial disturbance |
| title_fullStr | Distribution and diffusion thermodynamic characteristics of phosphorus at the interface between river sediment and water under the influence of artificial disturbance |
| title_full_unstemmed | Distribution and diffusion thermodynamic characteristics of phosphorus at the interface between river sediment and water under the influence of artificial disturbance |
| title_short | Distribution and diffusion thermodynamic characteristics of phosphorus at the interface between river sediment and water under the influence of artificial disturbance |
| title_sort | distribution and diffusion thermodynamic characteristics of phosphorus at the interface between river sediment and water under the influence of artificial disturbance |
| topic | adsorption artificial disturbance phosphorus sediment–water transfer |
| url | http://ws.iwaponline.com/content/22/8/6615 |
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