Pharmaceutical-Based Emerging Contaminants Removal from Aqueous Solution by Different Granular Activated Carbon-Based Adsorbents

IF 0.5 4区 化学 Q4 CHEMISTRY, ANALYTICAL Journal of Water Chemistry and Technology Pub Date : 2023-09-21 DOI:10.3103/S1063455X23050041
Chhaya, Ramakrishna Bag, Trishikhi Raychoudhury
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Abstract

The objective of this study is to investigate the removal of selected pharmaceuticals such as ibuprofen (IBP), diclofenac (DCF), and carbamazepine (CBZ) by activated carbon (AC) when they are present in the aqueous solution as an individual entity or as a mixture. The coconut (ACEco) and lignite (ACDarco) derived ACs after and before the impregnation of cerium were used as the adsorbent. Batch experiments were carried out for assessing the removal efficiency under varying conditions. The removal efficiencies of those pharmaceuticals were in the range of 66.2–99.8%. In the case of IBP and DCF, the removal was found to decrease slightly by ACEco and ACEco-Ce when the mixture of pharmaceuticals was used as compared to individual pharmaceuticals. The sorption kinetics results indicated that IBP (for both ACEco and ACDarco) and CBZ (ACEco) were best fitted to the pseudo-first-order kinetics model, whereas the DCF (both for ACEco and ACDarco) and CBZ (ACDarco) fits better to pseudo-second-order model. The outcome of the study indicates that selected ACs were found effective in removing IBP, DCF, and CBZ when they are present as an individual entity or as a mixture in the aqueous solution.

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不同颗粒活性炭吸附剂去除水溶液中新出现的药物污染物
本研究的目的是研究当布洛芬(IBP)、双氯芬酸(DCF)和卡马西平(CBZ)作为单个或混合物存在于水溶液中时,活性炭(AC)对它们的去除作用。将铈浸渍前后的椰子(ACEco)和褐煤(ACDarco)衍生的活性炭用作吸附剂。进行分批实验以评估在不同条件下的去除效率。这些药物的去除率在66.2–99.8%之间。在IBP和DCF的情况下,发现与单独的药物相比,当使用药物混合物时,ACEco和ACEco-Ce的去除率略有下降。吸附动力学结果表明,IBP(对于ACEco和ACDarco)和CBZ(ACEco)最适合伪一阶动力学模型,而DCF(对于ACEco和ACDarco)和CBZ(ACDarco)更适合伪二阶动力学模型。研究结果表明,当选定的AC作为单个实体或混合物存在于水溶液中时,它们可以有效地去除IBP、DCF和CBZ。
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来源期刊
Journal of Water Chemistry and Technology
Journal of Water Chemistry and Technology CHEMISTRY, APPLIED-CHEMISTRY, ANALYTICAL
自引率
0.00%
发文量
51
审稿时长
>12 weeks
期刊介绍: Journal of Water Chemistry and Technology focuses on water and wastewater treatment, water pollution monitoring, water purification, and similar topics. The journal publishes original scientific theoretical and experimental articles in the following sections: new developments in the science of water; theoretical principles of water treatment and technology; physical chemistry of water treatment processes; analytical water chemistry; analysis of natural and waste waters; water treatment technology and demineralization of water; biological methods of water treatment; and also solicited critical reviews summarizing the latest findings. The journal welcomes manuscripts from all countries in the English or Ukrainian language. All manuscripts are peer-reviewed.
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