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农业废弃物茭白叶的改性吸附性能

Keywords: 农业废弃物,改性,吸附,富营养化废水

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Abstract:

以农业废弃物茭白叶为原料,利用FeCl3溶液进行浸渍改性,制备了茭白叶生物吸附剂,研究了吸附剂吸附富营养化物质磷的行为.利用场发射扫描电镜研究了原始茭白叶与生物吸附剂表面形貌变化,重点研究了被吸附溶液pH值、FeCl3溶液的质量浓度、生物吸附剂的粒度等因素对磷吸附能力的影响.研究表明,生物吸附剂的粒度越大,吸附能力越强.采用50g/L的FeCl3溶液对原始茭白叶进行改性,被吸附溶液pH值为5.5,吸附时间30h,片状生物吸附剂的吸附能力可以达到4.36mg/g.

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