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碱化/蒸发/汽提组合工艺处理制药废水的研究

Release time:2021-03-15| Hits:

Key Words:COD;;碱化;;蒸发;;汽提;;组合工艺;;制药废水;;NH3-N

Abstract:针对制药废水高COD、高NH3-N和有机物难降解的特点,提出了碱化、蒸发和汽提工艺组合的处理方法,考察了NaOH加量、蒸发量及汽提量对废水COD及NH3-N去除效果的影响。结果表明,组合工艺对废水的COD、NH3-N有很高的去除率。在NaOH加量为20g·L-1、蒸发量为80%、汽提量为1.0%的条件下,COD去除率最高达99.4%、NH3-N去除率最高达98.5%;同时,提高了出水的可生化性,出水COD和NH3-N均达到了《制药工业水污染物排放标准》(GB 21907-2008)。

Volume:v.29;No.189

Issue:10

Translation or Not:no

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