R. Singh, V. Singh, P. N. Tiwari, U. Singh, Y. Sharma
{"title":"An economic removal of Ni(II) from aqueous solutions using an indigenous adsorbent.","authors":"R. Singh, V. Singh, P. N. Tiwari, U. Singh, Y. Sharma","doi":"10.2174/1874829500902010030","DOIUrl":null,"url":null,"abstract":"Carbon slurry, dried in open air, has been used as an adsorbent material for the removal of nickel(II) from aqueous solutions at different experimental conditions in batch adsorption technique. The time required to attain equilib- rium was found to be 50 minutes. The effects of initial concentration of Ni(II), particle size of adsorbent, adsorbent dose, temperature and pH on removal of nickel(II) have been studied. The removal was favored at higher pH, the pH value for maximum adsorption being 10.00. Batch adsorption kinetics has been described by the Lagergren equation. Langmuir and Freundlich isotherms were applied and both isotherms were seen to be applicable over the concentration range studied. Thermodynamic parameters indicate the endothermic nature of Ni(II) adsorption on carbon slurry.","PeriodicalId":344616,"journal":{"name":"The Open Environmental Engineering Journal","volume":"57 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"12","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Open Environmental Engineering Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2174/1874829500902010030","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 12
Abstract
Carbon slurry, dried in open air, has been used as an adsorbent material for the removal of nickel(II) from aqueous solutions at different experimental conditions in batch adsorption technique. The time required to attain equilib- rium was found to be 50 minutes. The effects of initial concentration of Ni(II), particle size of adsorbent, adsorbent dose, temperature and pH on removal of nickel(II) have been studied. The removal was favored at higher pH, the pH value for maximum adsorption being 10.00. Batch adsorption kinetics has been described by the Lagergren equation. Langmuir and Freundlich isotherms were applied and both isotherms were seen to be applicable over the concentration range studied. Thermodynamic parameters indicate the endothermic nature of Ni(II) adsorption on carbon slurry.
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