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铁-镧系合金氧化物污水除磷及再生

Keywords: 铁-镧系合金氧化物,除磷,吸附,再生

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Abstract:

采用共沉淀法制备了系列铁-镧系合金氧化物并研究其除磷能力。结果表明:以铁、镧摩尔比为0.08的吸附剂除磷能力最强,吸附曲线适合Langmuir等温线方程。该吸附剂的吸附量受pH影响显著,pH在4.0~7.0之间时吸附量较大。进行了抗共存阴离子能力测试,结果表明CO32-对磷吸附量影响较大,给出了共存阴离子对吸附量的影响顺序。对该吸附剂进行了真空高温再生,再生率最高可达62.27%。

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