Biological Hydrogen Production from Mixed Waste in a Polyurethane Foam-sequencing Batch Reactor | ȥ����± ¹� ��¸®¿췹ź ´�ü¸¦ ������ ¿¬¼�ȸºнİ�d; �̿��� »�¹°���� ¼�¼һ�»�
2014
Lee, J.Y., Ewha Womans University, Seoul, Republic of Korea | Wee, D., Ewha Womans University, Seoul, Republic of Korea | Cho, K.S., Ewha Womans University, Seoul, Republic of Korea
This study investigated the effects of polyurethane foam on continuous hydrogen production from mixed wastes. Molasses was co-fermented with non-pretreated sewage sludge in a sequencing batch reactor. The results indicated that the addition of polyurethane foams as a microbial carrier in the reactor mitigated biomass loss at HRT 12 h, while most of the biomass was washed out during the operation period with no carrier. There was a stable hydrogen production rate of 0.4L?H©� /l/d in the carrier-sequencing batch reactor. Suspended biomass in the carrier-reactor indicated it possessed the highest specific hydrogen production rate ( 241¡¾4ml?H©� /gVSS/d ) when compared to that of biomass on the surface ( 133¡¾10ml?H ©�/gVSS/d ) or inner carrier ( 95¡¾14ml?H©�/gVSS/d ).
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