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首页> 外文期刊>配管·装置·プラント技術 >Concentration by electrodialysis of L-ascorbic acid from wastewater coming from the immersion process at a potato processing plant
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Concentration by electrodialysis of L-ascorbic acid from wastewater coming from the immersion process at a potato processing plant

机译：来自浸没过程的L-抗坏血酸电渗析来自浸没过程中的浸渍过程中的浸泡工厂

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摘要

The feasibility to concentrate L-ascorbic acid (Vitamin C, AsA) from wastewater coming from the immersion process at a potato processing plant by electrodialysis was evaluated. It was found that dissolved AsA could be concentrated electrically, by use of electrodialysis. The characteristics of the raw wastewater, the filtrated solution, and the electrodialyzed solutions were also assessed quantitatively. In the diluted solution after electrodialysis, biochemical oxygen demand (BOD), chemical oxygen demand (COD), total solids (TS) and volatile solids (VS) were reduced by 71.0%, 73.7%, 81.0% and 75.2%, respectively, compared to the raw wastewater. In this study, variation of dissolved AsA concentration in the concentrated solution during electrodialysis under several current densities was analyzed using a mathematical model. The calculated values by the model fit the measured values well.
机译：评估了通过电渗析的浓缩来自浸没过程的废水的浓缩L-抗坏血酸（维生素C，ASA）的可行性。 发现溶解的ASA可以通过使用电渗析来电渗量浓缩。 还定量评估了原料废水，过滤溶液和电渗变溶液的特性。 在电渗析后的稀释溶液中，生物化学需氧量（BOD），化学需氧量（COD），总固体（TS）和挥发性固体（VS）分别减少了71.0％，73.7％，81.0％和75.2％相比，相比 到原料污水。 在该研究中，使用数学模型分析了在电渗析下电渗析期间浓缩溶液中溶解的ASA浓度的变化。 模型计算值符合测量值良好。

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