Studi Penurunan Total Coliform Mata Air Menggunakan Clay Filter

Abstract

Clean water has become an scarce resource. due to lack of water catchment areas, the loss of trees in the forest as a medium for absorbing water into the groundwater. According to Indonesia health profile in 2011 Central Java province have access to good water 74% and access to the bad water 26%. As an effort to use of water is accommodate the springs with small discharge (spring seepage) scattered along the mountainside but, during the water spring seepage flows occurs pollution by soil and rain one pollutant content is coliform bacteria. One treatment solution using clay filter, made from a mixture of clay and sawdust to create a filter that is able to kill 98% of contaminants. Sawdust are burned that creating small holes that filter out harmful organisms. In this study, clay filter is made of variation in the size of sawdust (50 mesh and 30 mesh), pressing the clay filter (with press and without press), and the process of burning clay filter (combustion furnace and open burning). The results show All clay filter efficiency of 100% after 6 hours of sampling. Clay filter with a material size of 50 mesh has an average discharge of 102.4 ml / h to 159,5ml / h while the clay filter with a material size of 30 mesh has an average discharge of 290ml / h to 527.6 ml / h. Optimum clay filter is a filter made of clay with a material size of 30 mesh, pressed mold and open burning. Results filtered on clay filter is 100% efficiency and discharge 291.1ml/