MODEL ZAT WARNA REACTIVE ORANGE 16 PADA REAKTOR KONTINYU FIXED BED ANAEROBIK DAN AEROBIK. The problem of textile wastewater is actually not only the colour, which is aesthically unappealing. The breakdownof the combination of two Nitrogen atoms which are tied in two layers(-N=N-) in decolorization prosess will caused theformation of metabolit which in general consisting of hidrocarbon and possibly causing carcinogen and mutagen.The goal of this research project is to know the capability of reactor in the process of decolorization and decreasingmetabolit content. This research used the two stage fixed bed reactor which operated continously. On the first stage thereactor is set in an anaerobic condition which allowed the decolorization process and on the second reactor is set in anaerobic condition for the purpose of degradating the formed metabolit. With the concentration of colouring agent 100mg/L and concentration of cosubstrate 1000 mg/L it delivered to conclusion that the optimum detention time indecolorization process is 8 hours with efficiency of removal colour 87% and efficiency of removal COD 50%. Key word: colour, textile, biologic, metabolit, reactor. Prayatni Soewondo, Mirdasanti Dyah; Jurusan Teknik Lingkungan, ITB
