Modeling of Settling Velocity Considering Organic Property of Suspended Organic Matter

Abstract

It needs to estimate the accurate settling velocity of the suspended organic matter affected by the organic property in order to develop the pelagic-benthic coupled ecosystem model to evaluate coastal religion where organic mud deposits in the bottom. In this study, laboratory experiment was performed to measure the settling velocity of suspended organic matter by particle distribution analyzing for organic matters (flocks). From the results, it was cleared that the effective density decreases with increasing of particle size. Comparing with this result and its organic property, it is understood that the settling velocity is affected by the structural property strongly. And the settling velocity model considering the organic properties was suggested.