The hydraulic retention time, a distribution of times that parcels of water spend in a constructed wetland, is not only the important factor of wetland design but also related to performance of the constructed wetland. A dye tracer test was performed ...
The hydraulic retention time, a distribution of times that parcels of water spend in a constructed wetland, is not only the important factor of wetland design but also related to performance of the constructed wetland. A dye tracer test was performed to recognize the flow characteristics of water and to reproduce the experimental hydraulic retention time in Banwol wetland using dye tracer, Rhodamine WT. Results indicate that the flow of water in Banwol wetland was mainly observed in open water area, however it also flow continuously in the vegetative area without any stagnancy. Experimental hydraulic retention time was 38.7 hour, which was less than the calculated retention time because the calculated retention time should not reflect the fluctuation of flux according to the irregular topography.