Pola Sebaran Parameter Air Limbah (COD, BOD, dan Amonia) dari Kegiatan Eco Resort dan Wisata Bahari di Perairan Laut Flores

Abstract

Wastewater generated from the operation of the Eco Resort and Marine Tourism activities
originates from domestic activities. Wastewater from domestic activities is treated at the
Sewage Treatment Plant (STP) and discharged into the sea. This research aims to provide a
deeper understanding of the spatial distribution patterns of wastewater parameters (COD,
BOD, and Ammonia) from Eco Resort and marine tourism activities in the Flores Sea. This
study was conducted during the west season in January 2021, followed by modeling using
MIKE 21 EcoLab, to determine the magnitude and distribution patterns of pollution in the
Flores Sea. The modeling results show that outfall 3 significantly influences the increase in
COD and BOD concentrations, especially during peak tide conditions and when the tide is
receding. Another factor causing an increase in COD and BOD values is the proximity of the
outfall to the wastewater discharge point. Based on the simulation results, the increase in
ammonia concentration is influenced by environmental factors and tidal changes. During low
tide conditions, the seawater current from the Flores Sea flows northward, transporting
wastewater from outfalls 1 and 2 to the north, resulting in increased ammonia concentrations
in that area.