Author(s): Anton Purnama
Linked Author(s):
Keywords: Effluent discharges; Mathematical model; Multiport diffuser; Sea outfall; Long-term impact assessment
Abstract: A far-field mathematical model for effluent discharge through a marine outfall with multiport diffusers is developed using a two-dimensional advection-diffusion equation based on a flat seabed that incorporates the effect of a tidally oscillating flow. Using the asymptotic approximation of the analytical solutions, the maximum diffuser-induced shoreline's concentration is formulated to predict the long-term potential impact of sea outfall discharge in the coastal waters and to measure its effectiveness over the single outfall discharge. The result shows that a long sea outfall with a perpendicular line diffuser (to the flow direction) is capable of thoroughly mixing and diluting the discharge effluent plume into the far-field.
Year: 2013