Indonesia Conference Directory

The reuse of grey water is one of the water management system implementations as an effort to preserve the environment. Gray water filter is an instrument that can be used to process grey water so that it can be reused. The purpose of this study was to determine the effect of the grey filter composition sequence on the acidity (PH) of household wastewater. This study used quantitative experimental methods. Water samples were tested before and after flowing through a filter made of four types of materials, namely sand, gravel, palm fiber, and charcoal, with the thickness of each material was 5 cm. The results of the study indicated that the composition sequence of the Gray Water Filter affects on the value of the water acidity level. The composition of the filter material that produces the lowest PH value was a composition sequence of gravel-sand-palm fiber-charcoal. While the sequence of composition that produces the highest PH value was the charcoal-and-gravel-palm fiber. All filter materials must be washed before being used as a gray water filter material so that the impurities on the surface of the material will not dissolve into the water that flows through the filter.