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首页> 外文期刊>Separation and Purification Technology >Microfiltration of beer yeast suspensions through stamped ceramic membranes
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Microfiltration of beer yeast suspensions through stamped ceramic membranes

机译：通过冲压陶瓷膜对啤酒酵母悬浮液进行微滤

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摘要

the possibility of permeate flux enhancement based on the surface modification of a membrane was invetigated. Crossflow midrofiltration of a pure beer yeast suspension through smooth and stamped ceramic membranes was performed. the stamped membrane had a helical reversed thread to increase turhbulence in the feed flow. Both membranes had an outer diameter of about 9 mm, the same zirkonia oxide active layer with a mean pore size of 0.23 #mu#m. Membranes were produced by LMPM ENSCM. Fluxes of permeate were measured for different crossflow velocities and concentration. A ceramic membrane with a helicallystamped surface has several advantages compared with a smooth membrane: flux, as well as limiting flux, are higher at the same velocity of the feed, power consumption per unit volume of permeate is lower for the stamped membrane and increases with increasing crossflow velocity of the feed. Modelling of the flux decline indicated differentmechanisms of fuling for smooth and stamped membranes.
机译：研究了基于膜表面改性的渗透通量增强的可能性。通过平滑和压印的陶瓷膜对纯啤酒酵母悬浮液进行交叉流中滤。压印的膜具有反向螺旋线，以增加进料流的紊流。两种膜的外径均为约9mm，是相同的氧化锆活性层，平均孔径为0.23＃μm。膜由LMPM ENSCM生产。测量了不同通流速度和浓度的渗透通量。与光滑膜相比，具有螺旋形表面的陶瓷膜具有多个优点：在相同进料速度下，通量以及极限通量都更高，压印膜的单位体积渗透物的功耗更低，并且随着通量的增加而增加。提高进料的错流速度。通量下降的模型表明光滑和冲压膜的充液机理不同。

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