ZHENG Xilai, ZHANG Junjie, CHEN Lei. Advances in the study of migration and transformation mechanisms of endogenous phosphorus via sediment resuspension[J]. Advances in Water Science, 2013, 24(2): 287-295.
Citation: ZHENG Xilai, ZHANG Junjie, CHEN Lei. Advances in the study of migration and transformation mechanisms of endogenous phosphorus via sediment resuspension[J]. Advances in Water Science, 2013, 24(2): 287-295.

Advances in the study of migration and transformation mechanisms of endogenous phosphorus via sediment resuspension

  • The study reviews the advances of the last decade and summarizes the driving force of sediment resuspension and the coupling effect, the release mechanisms for phosphorus as well as possible influencing factors via sediment resuspension.Relevant researches on the subject show that the driving forces can be in the form of either acting alone or intercoupling.The latter is subject to a great deal of spatial and temporal variability.Reducible sediment suspends into oxic overlying water resulting in the removal of endogenous soluble reactive phosphorus (SRP) via oxidation reactions of Feand Mn and absorption of resuspended sediment particles.While endogenous organic phosphorus is transformed into SRP via biomineralization and photolysis.Factors, including sediment physicochemical properties, hydrodynamics, aquatic organisms and physiochemical properties of overlying water, can affect migration and transformation of phosphorus during sediment resuspension.It is proposed that future studies should improve the understanding of the multi-process coupling effect during endogenous phosphorus migration and transformation via sediment resuspension, transformation of sediment phosphorus forms as well as their bioavailability via resuspension, and mineralization and photolysis mechanisms of organic phosphorus and their regulating factors in frequently-disturbed waters.
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