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Successful control of phosphorus release from sediments using oxygen nano-bubble-modified minerals
Pingping Yu;  Jingfu Wang;  Jingan Chen;  Jianyang Guo;  Haiquan Yang;  Quan Chen
2019
Source PublicationScience of The Total Environment
Volume663Pages:654-661
Abstract

Due to the limited aeration capacity of current aeration techniques at the sediment-water interface (SWI), we developed a specialized aeration material aimed at the SWI, known as oxygen nano-bubble-modified minerals (ONBMMs). Furthermore, we simulated its aeration efficiency at the SWI and the control effects of internal phosphorous (P) release under anaerobic conditions during 20 days. High resolution diffusive gradients in thin films (DGT) and Planar luminescent optode (PO) technologies were used to measure the temporal variation of reactive P, reactive Fe (II) and dissolved oxygen (DO) of the SWI. These results show that ONBMMs can effectively increase the content of DO at the SWI and decrease the release flux of internal P from sediments. The use of ONBMMs reduced 97.9% of the soluble reactive P concentration of the overlaying water and reduced the release flux of DGT-P from sediments by 78.9%. Inhibition of reductive dissolution of FeP from sediments was the primary principle that effectively inhibited the input of internal P by ONBMMs. Therefore, ONBMMs are potentially promising technology for the treatment of internal P pollution in eutrophic lakes.

KeywordOxygen Nano-bubbles-modified MIneralsphosphorussediment-water Interfacediffusive Gradients In thIn Filmsplanar lumInescent Optode Technology
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/10219
Collection环境地球化学国家重点实验室
Affiliation1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China
2.College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, PR China
3.University of Chinese Academy of Sciences, Beijing 100049, PR China
Recommended Citation
GB/T 7714
Pingping Yu;Jingfu Wang;Jingan Chen;Jianyang Guo;Haiquan Yang;Quan Chen. Successful control of phosphorus release from sediments using oxygen nano-bubble-modified minerals[J]. Science of The Total Environment,2019,663:654-661.
APA Pingping Yu;Jingfu Wang;Jingan Chen;Jianyang Guo;Haiquan Yang;Quan Chen.(2019).Successful control of phosphorus release from sediments using oxygen nano-bubble-modified minerals.Science of The Total Environment,663,654-661.
MLA Pingping Yu;Jingfu Wang;Jingan Chen;Jianyang Guo;Haiquan Yang;Quan Chen."Successful control of phosphorus release from sediments using oxygen nano-bubble-modified minerals".Science of The Total Environment 663(2019):654-661.
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