Sharif Digital Repository

One of the common and frequent problems in sewer systems is sediment deposit in the pipes and conduits. In a sewer system, most of the pipes experience extensive fluctuations of flow rate during their operation. There could be high and low flows of fluids passing through the pipe. In the former, solid particles will pass through the pipe because of the high velocity of the flow, while in the latter, velocity of the flow is lower than the self cleaning velocity. Lower velocities of flow lead to deposition of solid particles inside the pipe. As a result, several problems such as decrease of pipe capacity, lower velocity and system over flow happen. A promising solution to overcome this problem...