IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) FULL PAPERS : THEME 2- HYDRO-ENVIRONMENT : EXPERIMENTAL STUDY ON PHOSPHORUS DISTRIBUTION BETWEEN OVERLYING WATER AND BED-SEDIMENT WITH DIFFEREN...
EXPERIMENTAL STUDY ON PHOSPHORUS DISTRIBUTION BETWEEN OVERLYING WATER AND BED-SEDIMENT WITH DIFFERENT HYDRODYNAMIC CONDITIONS
Author : HAOKE CHENG , YANG XIAO , HONGWU TANG , WEIWEI YU
The distribution and movement of soluble reactive phosphorus (SRP) between overlying water and bed-sediment in river systems is strongly influenced by hydrodynamic conditions. This research reports on an investigation into the effects of velocity on phosphorus distribution between overlying water and bed-sediment. The experiments were conducted in an annular flume for 4 days. The sediment was placed in the bottom of the channel, the range of water velocity was controlled below the sediment incipient velocity (i.e., <11 cm/s) to keep the suspended sediment concentration low. The experimental results demonstrated that the transport of phosphorus to bed-sediment in fluvial systems was far from a steady-state equilibrium at the end of experiments. In the first 24 h, the content of P uptake by bed-sediment increased with increasing water velocity in the first 24h, and in the following 3d, water velocity appeared to have no significant effect on P uptake by bed-sediment.
File Size : 276,546 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) FULL PAPERS
Article : THEME 2- HYDRO-ENVIRONMENT
Date Published : 18/04/2016
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