The rectorite was applied to remove lead-containing ion of wastewater in laboratory experiment. The influencing factors such as the initial lead ion concentration, rectorite dosage, reaction time and the temperature were investigated. The experiment results and optimal conditions for rectorite adsorption treatment of Pb(II) are that the initial concentration, rectorite dosage, adsorption temperature and time are 100 mg?L?1, 25?C, 5 g?L?1 and 40 min, respectively. The removal rate of lead ion can reach 62.12%. The adsorption isotherm was well described by Langmuir model and the process of adsorption kinetic data fitted a pseudo-second-order model. The removal process of rectorite for Pb(II) was dominated by chemical adsorption and related to the ion exchange and surface precipitation between the active sites on rectorite surface and adsorbate.
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