Assessment of Water Quality Parameters in a Rivers Using Qual2Kw: A Study in Bangkalan River

Abstract

Increased human activity, shifts in land use and the increasingly diverse lifestyles of people in Bangkalan City have resulted in an increase in domestic waste and made the pollutant load in the Bangkalan River even greater over time. The Bangkalan River segmentation from the Tunjung Dam to the Bancaran River has indicated that the quality of river water has decreased. The purpose of this study was to determine the pollution level of the Bangkalan River, the condition of the Bangkalan River's water quality, and to obtain recommendations for treatment strategies for river water quality management in the future. This research approach uses descriptive, quantitative, and qualitative. The method used is calculating the Pollutant Index and Water Quality Index, simulates parameters in a scenario using QUAL2Kw modeling. In the results of this study it is known that the pollution level of the Bangkalan River is categorized as lightly polluted and the quality of the Bangkalan River is categorized as moderate. The results of the river water quality test in the simulation scenario with QUAL2Kw show that the water quality of the Bangkalan River is classified as class II water quality and is classified as medium water quality in the segment of the Tunjung Dam to the Bancaran River.