PENENTUAN MEDIA TANAH SEBAGAI EVAPOTRANSPIRATION BED DENGAN TANAMAN KANA (Canna sp.) DAN PACAR AIR (Impatiens balsamina) UNTUK PENGOLAHAN AIR LIMBAH DOMESTIK

Abstract

Soil medium implanted with canna sp. and impatiens balsamina was used for treating domestic wastewater with upflow method.  The expected mechanism of pollutant and coliform removal was suction by soil matrix, soil particle gradation, and evapotranspiration. The optimum cumulative evapotranspiration of 5.055.5950 g in soil implanted by canna sp. was reached in the soil composition of 0,25 mm garden soil and 0,297 mm sand. The removal of coliform bacteria in this soil composition was 99,62%. In soil implanted by Impatiens balsamina, the optimum cumulative evaporation of 5.620,6816 g was achieved when the soil was composed of 0,297 mm sandy clay and 0,425 mm sand. The coliform removal in this composition was 98,89%.