Indonesia Conference Directory

Land use, lithology, time, rainfall and human activities cause changes in river water quality physically, chemically, and biologically. Waste pollution from non-point sources is difficult to control where it is spread with a large enough accumulated discharge. Some watersheds in Indonesia have specific non-point source pollution sources such as batik waste originating from MSMEs. The research case study is in the Premulung river segment of the Solo City. This study explains the effect of various pollutants on water quality such as batik waste and domestic waste. Premulung River water samples were taken at 13 points from non point source and 10 point source. The prediction model uses Qual2kw software. The results showed that batik waste discharges from MSMEs affected water quality on COD parameters and colors temporarily and quickly changed along the river channel. The river that contains batik waste has a characteristic dark water with high suspended material. The presence of batik waste discharges accelerates the river sinking process.