DESIGN OF A SLOW SAND BED FILTRATION SYSTEM FOR PURIFICATION OF CANAL WATER

Abstract

The purpose of the present study is to present the design of a filtration system for removal of canal water impurities. The canal water characteristics were examined before and after the treatment with a slow sand bed filtration system. The gravel and sand were used as media for the proposed filtration method. The canal water was introduced in batch wise from the top of the system. The water then passed through the layers of media and purified. The filtered and purified water was collected at the bottom of the system through riser pipe. The pH, turbidity, total dissolved solids (TDS) and electrical conductivity (EC) of canal and filtered water was examined. It is found from the study that the maximum efficiency of the proposed system was 99% in reducing turbidity level and 6% in reducing TDS and EC level. The proposed system was found to be more effective for reducing turbidity from the canal waters among examined parameters.