Release of phosphorus in sediments from a tributary of the Three Gorges Reservoir (China) with phosphate-solubilising bacteria

被引:5
|
作者
Wang, Ying [1 ]
Shen, Zhenyao [1 ]
机构
[1] Beijing Normal Univ, State Key Lab Water Environm Simulat, Sch Environm, Beijing 100875, Peoples R China
基金
中国国家自然科学基金;
关键词
phosphorus; release; sediments; PSB; phosphate-solubilising bacteria; three Gorges Reservoir; phosphorus-existing forms; AKP; alkaline phosphatase; temperature; DO; dissolved oxygen; eutrophication; RIVER;
D O I
10.1504/IJEP.2011.039091
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Inorganic Phosphate-solubilising Bacteria (IPB) and Organic Phosphate-mineralising Bacteria (OPB) was isolated from DaNing River which was an important tributary of the Three-Gorges Reservoir (China), and their abilities for P release from sediment were evaluated in batch experiments. The results showed that IPB and OPB may not only enhance P release, but also reserve P as organic P and inorganic P forms inside the cells. Higher temperature promoted P release and reserve inside the bacteria. Lower dissolved oxygen debased P reserved inside the bacteria, but made more Fe-bound P released, which enhanced the concentration of phosphate in water.
引用
收藏
页码:145 / 156
页数:12
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