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颗粒活性炭吸附去除水中雌激素的试验研究

Keywords: 雌激素,活性炭,吸附,弗里德里希吸附等温式

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Abstract:

以自来水为试验原水,投加雌酮(E1)、雌二醇(E2)和乙炔雌二醇(EE2),考察了颗粒活性炭去除水中雌激素的效果及动力学.结果表明,活性炭吸附能快速有效地去除水中雌激素.接触10min后,即达到吸附平衡.平衡质量浓度与雌激素起始质量浓度有关.初始质量浓度为500ng/L时,E1、E2和EE2的去除率分别为74.7%、89.5%和82.8%.E1、E2和EE2同时存在时,活性炭对E2的吸附效果显著变差(初始质量浓度为500ng/L时,吸附平衡质量浓度由44.65ng/L增加到195.03ng/L),而对E1和EE2的吸附效果没有影响.不同初始质量浓度的等温吸附数据可用Freundlich等温吸附方程来描述.

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