Abstract
The effect of the salinity and organic mattter, such as Extraceller Polymeric Substances on the settlement of the suspended sediment and erosion of the estuarine sediment was studied. The surface sediments were sampled at the tidal river of the Chikugo River where the turbidity maximum is observed to use flocculation and erosion experiments. The results of the experiments showed that concentration-based settling velocity of the suspended mud increaces with increases of salinity. Suspended mud with EPS has much higher settling velocity comparing with the EPS removed sediment. On the other hand, flux based settling velocities of each sediments were almost same regardless of whether EPS was removed or not. Erosion thresholds of the sediments whose EPS were removed had lower than those of raw sediments
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Schedule a callMore From: Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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