Kampus ITS Sukolilo, Surabaya 60111
Voni Yuanita, Yulia Rahmawati, Hasasty Pratiwi Teknik Kimia, Fakultas Teknologi Industri, ITS
Kampus ITS Sukolilo, Surabaya 60111
Abstract
Phenol compound was very dangerous pollutant. In conventional activated sludge, microorganism cannot degrade organic compound of phenol. For that, with combining PAC injection in activated sludge system and membrane technology, was expected can increase degradation capability of toxic organic compound. The aim ofthis research to evaluate performance of hybrid membrane bioreactor process with investigated combination of adsorption, biodegradation, and filtration. This research was conducted with synthetic wastewater and was combined with phenol, that contain toxic compound which representative wastewater oil industry. Bioreactor was operated in 50L of volume, MLSS8000 and 15000mg/l,COD 1500 and 2500mg/l, SRT 20, 30days. In membrane bioreactor was injected phenol of 50 mg/l and PAC (10% of MLSS). The result show that biological process was influence filtration which biological process close to F/M ratio. Fouling potential happened at high MLSS which was showed with decreasing of permeate flux 16,0% but after addition of 10%PAC, decreasing of flux to 11,6%. But fouling was not influenced COD variable. Wastewater treatment system cannot degraded organic compound well, it was showed from low of COD removal after added phenol. But, with PAC addition, toxic compound can be adsorbed then bioreactor performance get better, which caused increasing of biodegradation process by microorganism.
Keyword : phenol, Powdered Activated Carbon, Membrane Bioreactor
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