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|Title:||Oxygen diffusion and consumption in active aerobic granules of heterogeneous structure|
|Citation:||Chiu, Z.C., Chen, M.Y., Lee, D.J., Wang, C.H., Lai, J.Y. (2007-06). Oxygen diffusion and consumption in active aerobic granules of heterogeneous structure. Applied Microbiology and Biotechnology 75 (3) : 685-691. ScholarBank@NUS Repository.|
|Abstract:||The interior structure of aerobic granules is highly heterogeneous, hence, affecting the transport and reaction processes in the granules. The granule structure and the dissolved oxygen profiles were probed at the same granule in the current work for possible estimation of transport and kinetic parameters in the granule. With the tested granules fed by phenol or acetate as carbon source, most inflow oxygen was consumed by an active layer thickness of less than 125 μm on the granule surface. The confocal laser scanning microscopy scans also revealed a surface layer thickness of approximately 100 μm consisting of cells. The diffusivities of oxygen transport and the kinetic constant of oxygen consumption in the active layers only were evaluated. The theoretical models adopted in literature that ignored the contributions of the layered structure of aerobic granule could have overlooked the possible limitations on oxygen transport. © 2007 Springer-Verlag.|
|Source Title:||Applied Microbiology and Biotechnology|
|Appears in Collections:||Staff Publications|
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