高温焙烧底泥吸附重金属Mn2+和Ni2+的动力学与热力学研究

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制备了高温焙烧底泥作为吸附剂,并对底泥焙烧前后的表征(SEM、FTRI、XRD、BET)进行研究与分析。采用静态吸附试验来研究高温焙烧底泥吸附废水中重金属Mn2+和Ni2+的吸附动力学与热力学的特性并确定吸附机理。结果表明:对高温焙烧底泥吸附的数据进行拟合且符合Langmuir和Freundlich吸附等温方程,但拟合效果更好的符合Freundlich吸附等温方程,表明吸附介于单层与多层之间。在高温焙烧底泥对Mn2+和Ni2+的吸附阶段用Lagergren伪一级吸附动力学方程和Lagergren伪二级吸附
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