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首页> 外文会议>The Third China-Korea conference on separation science and technology >Oil-water Separation of Rinse Water Containing Oily Contaminants in the Semi-aqueous Cleaning System
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Oil-water Separation of Rinse Water Containing Oily Contaminants in the Semi-aqueous Cleaning System

机译：半水清洗系统中含油污染物冲洗水的油水分离

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摘要

During the cleaning process of parts cleaning in the metal and electronic industries, a large amount of wastewater solutions are generated. The contamination level control of aqueous cleaning solution is very important because it is closely related to cleaning efficiency and running cost. In this work, rinse water containing cleaning agents and contaminants was prepared and efficiency of oil/water separation by gravity settling method was evaluated for its recycling. The COD removal efficiency from the rinse water increased with temperature regardless of contaminants' type. It also increased in accordance with the decrease of HLB (hydrophilic lipophilic balance) value of the nonionic surfactant in the cleaning agents. These experimental results indicated that it was possible to recycle water through oil removal by gravity settling method from rinse water containing various contaminants.
机译：在金属和电子行业的零件清洁的清洁过程中，会产生大量废水溶液。水性清洗液的污染水平控制非常重要，因为它与清洗效率和运行成本密切相关。在这项工作中，准备了含有清洁剂和污染物的冲洗水，并通过重力沉降法对油/水分离的效率进行了评估。漂洗水中的COD去除效率随温度的升高而增加，而与污染物的类型无关。随着清洁剂中非离子表面活性剂的HLB（亲水亲脂平衡）值的降低，其也增加。这些实验结果表明，可以通过重力沉降法从含有各种污染物的冲洗水中通过除油来回收水。

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