{"title":"Utilization of Calcined Gypsum in Water and Wastewater Treatment:\nRemoval of Ibuprofen","authors":"A. Al-Rawajfeh","doi":"10.48103/jjeci1102018","DOIUrl":null,"url":null,"abstract":"Adsorption is a widely used technique for the removal of pharmaceutical organic micro-pollutants. In this article, calcined gypsum\n(CaSO4.0.5H2O) was utilized for the removal of ibuprofen medicine from polluted water. Several factors including the\nadsorbent dose, contact time, and temperature were studied. The influence of the ions in the solution on the\nprecipitation of gypsum and its setting time was investigated because it significantly affects the percentage removal.\nThe fast the setting time gypsum, the lower the percentage removal precipitate. From thermodynamic parameters, the\nnegative values of ΔGo indicated a spontaneous and physisorption of ibuprofen onto the calcined gypsum surface.\nKinetic study results showed that the adsorption of ibuprofen on gypsum follows pseudo-first-order kinetics.","PeriodicalId":14606,"journal":{"name":"issue 2","volume":"72 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"issue 2","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.48103/jjeci1102018","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
Adsorption is a widely used technique for the removal of pharmaceutical organic micro-pollutants. In this article, calcined gypsum
(CaSO4.0.5H2O) was utilized for the removal of ibuprofen medicine from polluted water. Several factors including the
adsorbent dose, contact time, and temperature were studied. The influence of the ions in the solution on the
precipitation of gypsum and its setting time was investigated because it significantly affects the percentage removal.
The fast the setting time gypsum, the lower the percentage removal precipitate. From thermodynamic parameters, the
negative values of ΔGo indicated a spontaneous and physisorption of ibuprofen onto the calcined gypsum surface.
Kinetic study results showed that the adsorption of ibuprofen on gypsum follows pseudo-first-order kinetics.
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