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首页> 外文期刊>Journal of food engineering >Coagulation Of Protein In Surimi Wastewater Using A Continuous Ohmic Heater
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Coagulation Of Protein In Surimi Wastewater Using A Continuous Ohmic Heater

机译：使用连续欧姆加热器对鱼糜废水中的蛋白质进行混凝

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A continuous ohmic heating system has been developed to coagulate protein from surimi wastewater to reduce the biological oxygen demand of the wastewater. A simple model, based on the energy conservation equation, was used to predict the temperature profiles of the wastewater. Samples were diluted and NaCl solution (10% by wt.) was added to make them suitable for testing in the developed device. All samples were heated under different conditions (electric field strength of 20, 25, and 30 V/cm; flow rates of 100, 200, and 300cc/min). After heating the samples were centrifuged and the remaining protein in supernatants was measured and compared with the results from the previous batch experiments. Heating under higher electric field strength and lower flow rate values resulted in higher temperatures of samples. The predicted temperature values agreed well with the experimental results. The amount of the remaining protein was also in agreement with that of the previous work. The lab-scale ohmic heating system possessed good performance to coagulate protein (～60%) from surimi wastewater.
机译：已经开发出一种连续的欧姆加热系统以凝结鱼糜废水中的蛋白质，以减少废水中的生物需氧量。基于能量守恒方程的简单模型用于预测废水的温度曲线。稀释样品，并添加NaCl溶液（按重量计10％），使其适合在已开发的设备中进行测试。将所有样品在不同条件下加热（电场强度为20、25和30 V / cm；流速为100、200和300cc / min）。加热后，将样品离心，并测量上清液中剩余的蛋白质，并将其与先前批次实验的结果进行比较。在较高的电场强度和较低的流速值下加热会导致样品温度升高。预测温度值与实验结果吻合良好。剩余蛋白质的量也与以前的工作一致。实验室规模的欧姆加热系统具有很好的凝结鱼糜废水中蛋白质（约60％）的性能。

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