煅烧石膏在水和废水处理中的应用:去除布洛芬

issue 2 Pub Date : 2018-12-01 DOI:10.48103/jjeci1102018

A. Al-Rawajfeh

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引用次数: 2

摘要

吸附法是一种广泛应用于制药有机微污染物去除的技术。本文利用煅烧石膏(CaSO4.0.5H2O)对污染水中的布洛芬药物进行脱除。研究了吸附剂用量、接触时间和温度等因素。由于溶液中离子对石膏的去除率有显著影响，因此研究了溶液中离子对石膏沉淀和凝固时间的影响。石膏凝固时间越快，沉淀去除率越低。从热力学参数来看，ΔGo的负值表明布洛芬在煅烧石膏表面的自发和物理吸附。动力学研究结果表明，布洛芬在石膏上的吸附符合准一级动力学。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Utilization of Calcined Gypsum in Water and Wastewater Treatment: Removal of Ibuprofen

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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issue 2

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