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| Forms and distribution of phosphorus in surface sediments of Jinpen Reservoir |
| Received:March 28, 2016 |
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| KeyWord:Jinpen Reservoir;surface sediments;interstitial water;phosphorus forms |
| Author Name | Affiliation | E-mail | | WANG Ya-ping | School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China | | | HUANG Ting-lin | School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China | huangtinglin@xauat.edu.cn | | ZHOU Zi-zhen | School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China | | | ZHANG Hai-han | School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China | | | LI Yang | School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China | | | LONG Sheng-hai | School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China | | | LIU Fei | School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China | |
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| Abstract: |
| Biological elements harbored in sediment of drinking water reservoir have an important influence on the quality of the overlaying water. In this work, standard measurement and test(SMT) procedure of phosphorus forms in the freshwater sediments was used to determine surface sediments geochemical characteristics, the forms and distribution of phosphorus in Jinpen Reservoir located in Xi'an City. The results showed that total phosphorus(TP) content in sediments ranged from 987~1326 mg·kg-1, from upstream storage to reservoir area, and the total phosphorus content increases. Meanwhile, inorganic phosphorus(IP) was the main component in sediment and accounted for 62.5%~78.9% of the total phosphorus(TP), and Ca-P accounted for 72.0%~90.5% of IP. A gradient of the soluble reactive phosphorus(SRP) occurred at the sediment-water interface, which indicated the SRP in the sediment could release to the overlying water and deterioriate the water quality. Variation trends of IP and TP are basically the same, and the change of TP is primarily determined by IP, but IP content was regulated by Ca-P and Fe/Al-P. The results from this work can provide scientific data for the water quality restoration in the deep drinking water reservoir. |
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