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- W2392579710 abstract "Batch experiments of selenium(Se(Ⅳ))adsorption from aqueous solution were conducted by using natural pyrite as adsorbent.The effect of pyrite particle sizes,initial Se(Ⅳ)concentration,temperature and solution pH on Se(Ⅳ)adsorption efficiency was investigated.Results showed that when the initial concentration of selenium was 7.896,19.740,39.480mg/L,the SeO2-3removal rate was 18%,11%,6%respectively after 12hof adsorption by micro-sized pyrite,while the nano-sized pyrite could achieve the Se(Ⅳ)removal efficiency of more than 91%when initial selenium concentration was no more than 39.480mg/L.The saturated Se(Ⅳ)adsorption capacity of nano-sized pyrite was 3.89mg/g at room temperature;the Se(Ⅳ)removal rate was more than 92% when solution pH ranged 2.2-11.5.The dynamic adsorption data of Se(Ⅳ)on nano-sized pyrite were well described by pseudo second-order kinetic equation with the activation energy was 26.003kJ/mol.The Langmuir adsorption isotherm model fitted the experimental data better than Freundlich isotherm model." @default.
- W2392579710 created "2016-06-24" @default.
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- W2392579710 date "2014-01-01" @default.
- W2392579710 modified "2023-09-23" @default.
- W2392579710 title "Adsorption behavior of natural pyrite for removal of selenium ions from aqueous solution" @default.
- W2392579710 hasPublicationYear "2014" @default.
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