软质聚氨酯泡沫塑料对高浓度苯酚的吸附特性

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针对苯酚质量分数为4.407 3%的酚醛废水,研究了聚氨酯软泡(SPF)对苯酚的静态、动态吸附特性及再生性能.结果表明,常温下动态吸附60 mL废水,当pH为2~4,SPF质量为3.8990 g时,苯酚去除率为97.53%;饱和SPF在常温下可用质量分数为6%的NaOH进行再生;经过80次疲劳实验,苯酚去除率仍保持在94%以上(最大为98.76%).Langmuir模型能更好地描述SPF对苯酚的吸附行为.
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