【摘要】 针对无机高盐RO浓排水具有含盐量高难处理的特点,本文研究了减压膜蒸馏技术处理无机高盐RO浓排水试验阶段中不同料液温度、真空度、流速对膜通量的影响。结果表明:料液温度、真空度、流速与膜通量存在相关性。随着料液温度和真空度的提高,膜通量会相应增加;随着料液流速的增加膜通量也有增加,但流速小于0.2 m/s时对膜通量的影响明显,当流速大于0.2m/s时对膜通量影响小。更多还原

【Abstract】 Aimed at the characteristic of high salinity and difficult dispose of high concentration inorganic salt reverse osmosis dewatering,this paper studies the vacuum membrane distillation technique dispose of high concentration inorganic salt reverse osmosis dewatering,and analyse the influence of different vacuum,material fluid temperature,flow velocity to membrane flux.The result shows that there is a correlation between membrane flux and vacuum,material fluid temperature and flow velocity.With increasing of vacuum and material fluid temperature,membrane flux increased accordingly;and when the velocity increased and membrane flux increased at the same time.With the velocity was less than 0.2 m/s,the influence to membrane flux came to be obvious,when the velocity was above 0.2 m/s,the influence to membrane flux went light.更多还原