Evaluation of Hydrochar Efficiency for Simultaneous Removal of Diclofenac and Ibuprofen from Aqueous System Using Surface Response Methodology

Overview

Journal Environ Sci Pollut Res Int

Publisher Springer

Specialties Environmental Health
Toxicology

Date 2019 Feb 8

PMID 30729442

Citations 1

Authors

Tahira QureshI

Najma Memon

Saima Q Memon

Handan Yavuz

Abdesadek Lachgar

Adil Denizli

Affiliations

Soon will be listed here.

Abstract

Pharmaceutically active compounds like diclofenac (DFS), ibuprofen (IBP), and other drugs that persist in the environment are listed as emerging contaminants. These escape from normal wastewater treatment plants and find their way to water streams; therefore, alternate treatment processes are needed. Herein, a sorbent material is reported that is prepared through hydrotermal carbonization from dried fruit powder of Zizipus mauritiana L. (HTC-ZM) and applied for simultaneous removal of DFS and IBP. Carbonized material (HTC-ZM) was found as agglomerates of approximately 1 μm particle size with surface area of 1160 m/g having oxygen functional groups (e.g., COO, O, C=O) on surface. Simultaneous removal of IBP and DFS onto HTC-ZM was studied using response surface methodology with a set of 18 experiments using factors such as pH, amount of sorbent, contact time, and sorbate concentration. Maximum removal efficiency was obtained 88% and 97% for DFS and for IBP, respectively, with adsorption capacity of 2.03 mmol g for DFS and 2.54 mmol g for IBP. Kinetics modeling and "mean free energy" values predicted that sorption is mainly governed by physical interactions followed by "pore filling" mechanism for uptake of DFS and IBP.

Citing Articles

Walnut Shell Biowaste Valorization via HTC Process for the Removal of Some Emerging Pharmaceutical Pollutants from Aqueous Solutions.

Turcanu A, Matei E, Rapa M, Predescu A, Berbecaru A, Coman G Int J Mol Sci. 2022; 23(19).

PMID: 36232389 PMC: 9570237. DOI: 10.3390/ijms231911095.

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