Study of Making Clay-based Ceramic Membranes with Additional Rice Husk and Sawdust to Reduce Water Turbidity

: There are still many people in the banks of the river in the city of Medan, especially in the Deli river, which uses river water for their daily needs. This study was conducted to reduce the water turbidity of the Deli River by using a ceramic membrane made from clay. The ceramic membrane was made by analyzing the effect of the composition and the size of the additional ingredients of rice husks and sawdust to the reduction of water turbidity in the Deli River. This ceramic membrane is made in the form of a pot (pot filter) with the height of 18 cm and the diameter of 21 cm which is burned at the temperature of 850 o C - 900 o C for 8 hours.Variations in the size of the material used are range from 35-50, 50-60 and 60-100 mesh with a comparison of the composition of materials (80%: 20%), (85%: 15%) and ( 90%: 10%). The result of the research on clay ceramic membranes with the additional turbidity reduction efficiency is equal to 90.36%. Whereas, clay ceramic membranes with the addition of rice husk showed a decrease in turbidity with an efficiency of 88.76%.