UJI KlNERJA BIOREAKTOR HIBRIO ANAEROB DALAM MENGOLAH LIMBAH CAIR PABRIK KELAPA SAWIT DENGAN BEBAN KEJUT

Abstract

The performance of anaerobic processes in the bioconversion of palm oil mill effluent into gaseous fuel is ve/y dependent on the concentration of biomass. Effort to increase the concentration of anaerobic biomass can be done by using anaerobic hybrid bioreactor. The bioreactor used had 3 chambers, each divided for an up and down flow pattem and having a working volume of 2,5 rrr. This study uses two anaerobic hybrid bioreactors equipped with cell immobilization media. Media used in cell immobilization is a medium density form of solid palm oil mills waste, namely: empty fmit bunch and palm midrib. Both bioreactors tested their performance by increasing feed flow rate unexpectedly by 50%, 100% and 150% under room temperature conditions and continuous operation. The results showed that the anaerobic hybrid bioreactor system was capable of converting single-phase oil palm mill effluent with a good performance, and testing with the feed Dow rate increased abruptly by 50%, 100%, and 150% indicates that the recovery time of the anaerobic hybrid bioreactor system is Single-phase of media empty fruit bunches <fnd palm midrib of media held fast with a periode of 6 to 8 days. Thus, the suddenly increase rate of the feed does not affect the performance of a single-phase anaerobic hybrid bioreactor, and the stability of the bioreactor is relatively high so as to convert liquid waste into fuel gas