Mitigation of clofibric acid pollution by adsorption: A review of recent developments

Ighalo, Joshua O.; Ajala, Oluwaseun J.; Umenweke, Great; Ogunniyi, Samuel; Adeyanju, Comfort Abidemi; Igwegbe, Chinenye Adaobi; Adeniyi, Adewale George

doi:10.1016/j.jece.2020.104264

Cited by 71 publications

(11 citation statements)

References 110 publications

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“…Suitable models for design purpose are found by fitting isotherm data to different isotherm models. It also shows the relationship and explains the interaction between adsorbate and adsorbent [2,128,129]. Adsorption isotherm is very significant in optimising adsorbent used [2,126].…”

Section: Equilibrium Isotherm and Kinetics Modelling Of Carbamazepinementioning

confidence: 99%

Recent Advances on the Aqueous Phase Adsorption of Carbamazepine

et al. 2022

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Carbamazepine (CBZ) is a pharmaceutical compound used in medical practice. Due to the ecotoxicological risk of its presence in the aqueous environment, researchers have been investigating its removal by adsorption technique. The aim of this study is to review the works done on the removal of CBZ from water by adsorption. Carbon‐based materials were the best types of adsorbent for CBZ uptake (> 200 mg g−1). Molecularly imprinted polymer (MIP) and carbon nanotubes (CNTs) showed especially good adsorption capacities. The key mechanisms of CBZ adsorption were π‐π interaction, electrostatic interactions, hydrogen‐bonding and hydrophobic interactions. Classical equilibrium isotherm models like Langmuir and Freundlich were always best‐fits and kinetics modelling was best‐fit to the pseudo‐second order model. The thermodynamics modelling of CBZ adsorption showed it was spontaneous and endothermic for most adsorbents. Methanol and acetone were especially effective for the desorption of CBZ from adsorbents and can achieve > 90 % removal even after 4–5 cycles. CBZ competes favorably in adsorption systems with other pharmaceutical species due to the advantages of the hydrophobic effect and molecular size.

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Section: Equilibrium Isotherm and Kinetics Modelling Of Carbamazepinementioning

confidence: 99%

Recent Advances on the Aqueous Phase Adsorption of Carbamazepine

et al. 2022

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“…CA has high mobility, is toxic and can persist in waste water for approximately 21 days [5]. The waste water treatment procedures such as adsorption, coagulation, and biological methods could not remove CA completely [6]. In order to decrease even more the wastewater toxicity, methods allowing the complete mineralization of CA, such as the advanced oxidation processes are highly desirable.…”

Section: Introductionmentioning

confidence: 99%

Excellent ambient oxidation and mineralization of an emerging water pollutant using Pd-doped TiO 2 photocatalyst and UV-A irradiation

Lutic¹,

Sescu²,

Siamer³

et al. 2022

Comptes Rendus. Chimie

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Active site engineering in nanostructured materials for energy, health and environment / Ingénierie de sites actifs dans les matériaux nanostructurés pour l'énergie, la santé et l'environnement Excellent ambient oxidation and mineralization of an emerging water pollutant using Pd-doped TiO 2 photocatalyst and UV-A irradiation Excellentes oxydation et minéralisation d'un polluant émergent de l'eau en conditions ambiantes en utilisant un photocatalyseur TiO 2 dopé avec Pd et irradiation UV-A

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“…Clofibric acid was selected as a model pollutant for the tests. It is a pharmaceutical metabolite of blood lipid regulation pharmaceuticals [21] and a growth control pesticide [22] reportedly present in aquatic environments [23,24], which has demonstrated to pose acute toxicity to invertebrates and has been associated with endocrine disruption and other harmful issues on aquatic environments [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Towards a more realistic heterogeneous electro-Fenton

Poza-Nogueiras

Moratalla

Sáez

et al. 2021

Journal of Electroanalytical Chemistry

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With the aim of bringing the heterogeneous electro-Fenton (EF) treatment one step closer to a more realistic operation, the scaling-up of that technology was evaluated. Assays were performed firstly at lab scale in a stirred-tank reactor and then at bench scale in a flow setup including a jet aerator and a microfluidic flow-through electrochemical cell. A fluidized-bed reactor was added to the bench-scale installation in order to retain the solid catalyst, iron-containing alginate beads. To the best of the authors' knowledge, there are no precedent studies reporting a heterogeneous EF treatment in a similar bench scale-configuration. Hydrogen peroxide generation and clofibric acid removal were assessed at both scales at current intensities of 0.12 and 0.25 A. Results showed that the scaled-up treatment was more efficient and cost-effective: at bench scale 18 times more volume was treated, the mass production of hydrogen peroxide was 28 higher and the specific cost for the removal of clofibric acid was cut by more than half. The most efficient treatment turned out to be the EF performed at 0.12 A at bench scale. Those results highlighted the importance of the reactor design in the scaling-up process. Additionally, aromatic intermediates were detected by liquid chromatography-mass spectrometry (LC-MS) and a degradation route was suggested. Carboxylic acids were also measured by HPLC confirming that the pollutant is mineralizing.

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Mitigation of clofibric acid pollution by adsorption: A review of recent developments

Cited by 71 publications

References 110 publications

Recent Advances on the Aqueous Phase Adsorption of Carbamazepine

Recent Advances on the Aqueous Phase Adsorption of Carbamazepine

Excellent ambient oxidation and mineralization of an emerging water pollutant using Pd-doped TiO 2 photocatalyst and UV-A irradiation

Towards a more realistic heterogeneous electro-Fenton

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