The performance of zirconium oxide (15 kDa, 50 kDa) membranes was studied for clarification of apple juice by crossflow ultrafiltration. The results showed that membrane fouling was low at high feed velocity (7 m/s) and low transmembrane pressure (150 kPa). The juice permeation at optimal conditions (400 kPa and 2 m/s) was about 60 m~3/(m~2·kWh); however, this level was 35% less then could be expected due to severe fouling. Ultrafiltered apple juice had excellent quality attributes that fulfil commercial specifications.
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机译：研究了氧化锆（15kDa，50kDa）膜的性能，以通过横流超滤澄清苹果汁。结果表明，在高进料速度（7m / s）和低跨膜压力（150kPa）下，膜污垢较低。最佳条件下的果汁渗透（400kPa和2米/米）约为60m〜3 /（m〜2·kWh）;然而，由于严重污垢，这个水平少35％。 Ultrafiltered Apple Juice具有卓越的品质属性，满足商业规格。
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