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附着生活型轮虫的悬浮固体去除特性

Keywords: 附着型轮虫,小麦面粉,悬浮颗粒,粒径

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Abstract:

附着生活型轮虫又称蛭形轮虫是污水生物处理中有益的后生动物。宿轮虫作为一种典型的蛭形轮虫,对其捕食特性的研究旨在建立宿轮虫的培养系,同时为在生物处理池中创造有利于宿轮虫大量生长的条件提供依据。实验通过选择营养较高且经济易得的小麦面粉代替细菌制成悬浮液作为食物用于培养宿轮虫,以得到宿轮虫的捕食特性。结果表明,悬浮颗粒的粒径是宿轮虫选择食物的重要指标,悬浮颗粒的粒径为2.5μm时其种群增长最快,粒径小于10μm时其能正常生长。实验结果不仅证明了宿轮虫能够去除污水中不能以自由沉降形式去除的悬浮颗粒,同时为宿轮虫的深入研究奠定了基础。

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