BOD-Salinity Simulation in the Sunter River Tanjung Priok Port with a Non-Orthogonal Model Application.

Martdianto, R.; Muin, M.; Kusuma, S.B.; Muslim, A.B., and Alam, H.N., 2023. BOD-salinity simulation in the Sunter River Tanjung Priok port with a non-orthogonal model application. In: Lee, J.L.; Lee, H.; Min, B.I.; Chang, J.-I.; Cho, G.T.; Yoon, J.-S., and Lee, J. (eds.), Multidisciplinary Approaches to Coastal and Marine Management. Journal of Coastal Research, Special Issue No. 116, pp. 76-80. Charlotte (North Carolina), ISSN 0749-0208. Tanjung Priok port is the biggest port in Indonesia, located in the Capital City of Jakarta, equipped with two sides of a breakwater that protects the port from the direct impact of the sea. The Sunter river flow to Tanjung Priok port delivers high domestic waste as an influence of urban activities. The high content of BOD values along the Sunter river to Tanjung Priok increases the source of water pollution that needs to control correctly. Tanjung Priok also has pollution sources consisting of solid domestic waste, domestic liquid waste, and oil sludge. The Sunter river streamflow in the Jakarta drainage system is divided by Kanal Banjir Timur (KBT), changing flow rate, and water quality pattern. The study area is the Sunter river's main channel, which has a 17 km length and includes Duren Sawit, Pulo Gadung, Kelapa Gading, Plumpang, Rawa Badak, and Tanjung Priok. To describe the complexity of a river's geometric flow to an estuary along the Sunter river to Tanjung Priok, the concept of a curvilinear Non-Orthogonal model is used, which is careful in composing the river morphology shape, river-channel branching, dimension, and elevation of the river to the estuary. Efforts to improve water quality along the Sunter river by increasing saltwater's effect by carrying out a Density-Induced Current (DIC) and dredging configuration. Dredging at the mouths of rivers by considering the influence of DIC involves water currents, river flow, wind stress, and tides. The study presents several simulation scenarios using MuQual3D to assess water quality problems in the Sunter river by increasing salinity through river dredging. [ABSTRACT FROM AUTHOR]