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首页> 外文期刊>Separation and Purification Technology >Utilization of enzymatic detergents to clean inorganic membranes fouled by whey proteins
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Utilization of enzymatic detergents to clean inorganic membranes fouled by whey proteins

机译：利用酶洗涤剂清洁被乳清蛋白污染的无机膜

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In this work inorganic membranes used for whey protein fractionation were cleaned with enzymatic detergents.The inorganic membrane Carbosep~R Ml (Orelis S.A.,France),of 150kg/mol molecular weight cut-off and ZrO_2 filtering layer,was used and the commercial detergent P3-Ultrasil~R 62 (Henkel Iberica S.A.,Spain) was selected for the cleaning.Hydraulic and chemical methods were considered to characterize the membrane cleanliness.Cleaning efficiency was observed to be a function of the operating conditions:recycling versus non-recycling of permeate,cleaning solution pH,enzymatic agent concentration and cleaning time.The optimum conditions to perform the cleaning were related to the optimum conditions to hydrolyze whey proteins in a batch reactor.Very high cleaning efficiencies (~100%) were reached in short operating times (20 min).However,residual matter was detected on the membrane surface after the cleaning.
机译：在这项工作中，用酶促去污剂清洁了用于乳清蛋白分级分离的无机膜。使用了截留分子​​量为150kg / mol的无机膜Carbosep〜R Ml（法国Orelis SA）和ZrO_2过滤层，并使用了商业用洗涤剂选择P3-Ultrasil〜R 62（Henkel Iberica SA，Spain）进行清洁，考虑采用液压和化学方法表征膜的清洁度，观察到清洁效率与操作条件有关：回收与不回收渗透液，清洗液的pH值，酶试剂的浓度和清洗时间。进行清洗的最佳条件与在间歇式反应器中水解乳清蛋白的最佳条件有关。在较短的操作时间内即可达到很高的清洗效率（〜100％） （20分钟）。但是，清洁后在膜表面上发现了残留物。

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