A study on silt and clay particles settling characterics in channels

Kenny Adams, Ajang. (2006) A study on silt and clay particles settling characterics in channels. [Final Year Project Report] (Unpublished)

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Abstract

This research project focuses on the design, development(fabrication)and performance tests of a channel model regarding to its usage in civil engineering construction site to transport flowing water as well as reducing the suspended solids (silt and clay). The model consist of two components a) the channel or drainage which will be the main collecting point for the surface runoff and b) the sedimentation trap at which the main sedimentation activities of suspended solids particles will take place. In this experimental research, it was found that at influent SS level of 300 mg/L and flow velocity at 0.096 m/sec (Q = 5 x 10-5m3/sec), the channel would experience a depositional rate of approximately 12.0%, at influent SS level of 300 mg/L and flow velocity at 0.121 m/sec, (Q = 8.33 x 10-5 m3/sec), the channel would operate in an erosion stage, whereby approximately 26.0% sediments would be added into the flow, and at influent SS level of 465 mg/L, the depositional rate would approximately be 16.13% at velocity = 0.096 m/sec (Q = 5 x 10-5m3/sec) to 5.38% at velocity = 0.121 m/sec (Q = 8.33 x 10-5 m3/sec) over a distance of 2 meters respectively.

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