Modeling The Distribution of Wastewater and Determining Zone of Initial Dilution from Waste Discharge Into The Sea From Fuel Terminal Activities in Balikpapan Bay

Abstract

Fuel storage terminals are facilities used to store and manage fuel supplies which are generally located in ports or coastal areas. This industrial activity produces wastewater originating from domestic waste, rainwater runoff, the process of separating tank bottom water from hydrocarbon products and so on. This liquid waste is disposed of into the sea and has the potential to reduce sea water quality which has an impact on the ecosystem and economic value of the sea. Modeling the distribution of wastewater using numerical methods processed by DHI Mike software shows the direction of distribution of wastewater and areas that are likely to be directly affected by the entry of this wastewater. From this modeling, the area directly affected is 250 meters from the point of entry of wastewater even though there is no significant change in sea water quality from the initial environmental baseline.

Keywords: wastewater, fuel terminal, environmental modelling, balikpapan bay.