PEMANFAATAN REAKTOR SISTEM ZONA AKAR UNTUK MENYISIHKAN PENCEMAR LIMBAH CAIR DOMESTIK DAN PENGARUHNYA PADA KETAHANAN PADI (Oryza sativa.L) TERHADAP PENYAKIT

Abstract

This research used constructed wetland system. Flow rate variation used 7,5 l/day, 11,25 l/ day and 15 l/ day with 2 controls. The measurement was done to the concentration of BOD₅, N-total, P-total, K-total, coliform and percentage of the rice leaves which were infected. Liquid wastewater from septic tank was used for reactor influent. The results showed decreases BOD₅ concentration 91,04% at flow rate 11,25 l/day (Hydraulic Loading Rate = 62,5 l/hari.m²) and the wastewater nutrient concentration for N 55,91% at flow rate 11,25 l/day, P 99,61% at flow rate 15 l/day, K 12,59% at flow rate 11,25 l/day and decreases coliform concentration 98,51% at flow rate 7,5 l/day.