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粉末离子交换树脂法提取印染污泥胞外聚合物(EPS)

, PP. 62-66

Keywords: EPS,印染污泥,离子交换树脂,粉末树脂

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Abstract:

阳离子交换树脂法是一种常用的提取污泥EPS的方法,所采用的树脂多为颗粒树脂,鲜见粉末树脂的应用.实验研究了粉末树脂对印染污泥EPS的提取,考察了pH值、投加量以及交换时间对EPS提取量的影响.结果表明,随着pH值、树脂投加量的增加,以及延长交换时间,均有利于EPS的提取量的增加;实验得出的最佳提取条件为pH9,投加量40g/gMLSS,交换时间3h.在此条件下,实验对比了粉末树脂法和颗粒树脂法的提取结果,表明粉末树脂法具有提取量大、交换速度快等优点,提取效果优于颗粒树脂法.

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