This study aims to provide recommendations for reducing the concentration of chemicals in liquid waste. The method used is waste reduction, which is one of the goals in Green Productivity (GP). Waste parameters used for testing are COD (Chemical Oxygen Demand), BOD (Biological Oxygen Demand), TSS (Total Solid Suspended), pH, total chromium, and phenol. Waste reduction applied is by filtering technique, which uses natural materials such as palm fiber, sand, activated charcoal, zeolites, and gravel. This simple filtration can safely be used at home and larger scale batik SMEs. Waste samples were taken from different SMEs, which are SME A with large scale production capacity and SME B with a small scale. The liquid waste tested was pure waste before filtration and waste after filtration. Waste testing was performed in a laboratory and the results show that the concentration of the tested parameter decreased. The decrease in concentration was significant. The results of SME A show that COD, BOD, and TSS decreased by 85.8153%, 77.09251%, and 90.65744% respectively. While the pH increased 15%, total chromium was still within safe limitation and phenol decreased by 86.56255%. Whereas, SME B had a decreased concentration of waste by 66.67%, 41.22%, 72.34%, and 5.55% respectively. The pH had increased by 5.55%, total chrome was found in a safe perimeter. The results of the two SMEs show that the waste reduction effort with filtration can reduce the concentration and increase the pH of the liquid waste before filtration. This is expected to reduce the negative impact of batik liquid waste on the environment.