Water Quality Modelling of the Cibarani Irrigation Channel, Bandung City

Abstract

Cikapundung River is the primary source of Bandung City's water supply and has been utilized for various purposes. However, the intensive urban growth has increased the number of people living at the riverbanks, increasing the water pollution. One of the examples is the Cibarani irrigation channel, which function was transformed into domestic sewage. The channel receives excess rainfall and household wastewater from the surrounding residential areas comprised of human waste and detergents. Despite the fact that the water is heavily polluted, the local community still resort to this water for fish farming and washing. Consequently, a study is urgently needed to reduce the impact of the disposed pollutants in the channel and control its water quality to meet the raw water standard. This study focuses on the identification of the water quality profile along the Cibarani irrigation channel. Various scenarios are modeled to estimate the volume and concentration of the domestic waste disposed to the channel. The result shows that the water quality of the Cibarani irrigation channel has not met the Class II Raw Water Standard. It is required to increase the discharge of the irrigation channel and control the effluent concentration to reduce the impact of the pollutants.