Flux Enhancement with Powdered Activated Carbon Addition in the Membrane Anaerobic Bioreactor
Flux Enhancement with Powdered Activated Carbon Addition in the Membrane Anaerobic Bioreactor
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DOI：
10.1081/ss-100100804
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发表时间：
1999-10
影响因子：
2.8
通讯作者：
Heesu Park;K. Choo;Chung‐Hak Lee
中科院分区：
文献类型：
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作者：
Heesu Park;K. Choo;Chung‐Hak Lee
通过一系列间歇和连续微滤试验，研究了粉末活性炭（PAC）的投加对膜耦合厌氧生物反应器（MCAB）膜过滤性能和处理性能的影响。在消化液的分批和连续MF中，加入PAC实现了通量改善，特别是当施加较高的剪切速率和/或较高的PAC剂量时。当PAC投加量达到5g/L时，污垢层阻力和滤饼层阻力均持续下降。PAC由于其不可压缩的性质和较高的反向传输速度，在实质上降低生物质饼阻力方面发挥了重要作用。PAC可能具有用于从膜表面去除沉积的生物质饼的冲刷作用，同时吸附和/或去除发酵液中溶解的有机物和胶体颗粒。投加PAC后，出水的色度和化学需氧量得到了很大程度的去除，系统也更加稳定。
The effect of powdered activated carbon (PAC) addition on the performance of a membrane-coupled anaerobic bioreactor (MCAB) was investigated in terms of membrane filterability and treatabilty through a series of batch and continuous microfiltration (MF) experiments. In both batch and continuous MF of the digestion broth, a flux improvement with PAC addition was achieved, especially when a higher shear rate and/or a higher PAC dose were applied. Both the fouling and cake layer resistances decreased continuously with increasing the PAC dose up to 5 g/L. PAC played an important role in subtantially reducing the biomass cake resistance due to its incompressible nature and higher backtransport velocities. PAC might have a scouring effect for removing the deposited biomass cake from the membrane surface while sorbing and/or coagulating dissolved organics and colloidal particles in the broth. The chemical oxygen demand and color in the effluent were much removed with PAC addition, and the system was also more st...