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中文摘要：
研究了经化学改性的橘子皮吸附剂对Pb2＋的吸附性能.考察了溶液pH值、吸附时间及Pb2＋初始质量浓度对该吸附剂吸附性能的影响.结果表明,吸附过程可以很好地用准二级动力学方程描述,吸附等温线用Langmuir方程拟合效果优于Freundlich方程.pH4.5,30℃时最大吸附容量为146.4 mg/g.经改性的橘子皮可重复使用5次以上.
英文摘要：
In this study,lead adsorption by chemically modified orange peel adsorbent was investigated.Effects of various parameters,including solution pH,adsorption time and initial Pb2＋ concentration were studied by batch experiments.Kinetics was found to be best-fit pseudo-second order equations.Equilibrium was well described by Langmuir isotherms rather than Freudlich isotherms.At pH4.5,30℃,the maximum adsorption capacity was 146.413mg/g.This biosorbent was suitable for repeated use for more than five cycles.
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