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首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >Threshold flux measurement of an ultrafiltration membrane module in the treatment of two-phase olive mill wastewater
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Threshold flux measurement of an ultrafiltration membrane module in the treatment of two-phase olive mill wastewater

机译：阈值的超滤通量测量膜模块治疗阶段橄榄油厂废水

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摘要

The critical and threshold flux theories represent an important advance in membrane knowledge. Comprehension of the flux behavior of ultrafiltration (UF) membranes is key to control the fouling issues during the steady operation of the plant. In this regard, differing between critical or threshold flux patterns in the treatment of wastewater effluents by UF is relevant to confirm the level of fouling expected and to verify if no fouling is predictable or if certain amount of fouling cannot be avoided. In the present study, the hydrodynamic behavior of a polymeric UF membrane was analyzed by means of both critical and threshold flux theories and diverse patterns were found depending on the feedstock pollutants concentration and particle size distribution. Results obtained from the pressure-cycling experiments point for a threshold flux pattern in the case of UF of the effluent derived from the extraction process (OMW) disregarding the applied pretreatment, whereas for 1:1 (v/v) mixture of the latter with the wastewater from the fruit washing (OWW) the membrane fits a critical flux trend, indistinctly of the performed pretreatment too, with negligible fouling below the critical conditions. These conclusions are supported by the experimental permeate flux profiles during batch-run operation experiments.
机译：临界通量和阈值理论代表膜的一个重要进步知识。通量的行为的理解膜超滤(UF)是控制的关键稳定运行期间的污染问题植物。在临界阈值或通量模式处理的污水废水超滤相关确认污染水平的预期并验证如果没有污染是可以预测的一定的污染不可避免。目前的研究中,水动力行为高分子超滤膜进行了分析通过关键和阈值理论和通量不同的模式是根据发现的原料污染物浓度和粒子大小分布。点的压力循环实验阈值变化模式的佛罗里达大学的情况提取过程中产生的废水(OMW)无视应用预处理,而对于1:1 (v / v)混合物的后者洗水果的废水(哦)膜符合临界通量趋势,朦胧地进行预处理,可以忽略的污染低于临界条件。这些结论是支持的实验渗透通量概要文件中批处理运行操作实验。

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