The Anodising Industry Wastewater: Considerations of Its Treatment for Environmental Protection

Ighalo, Joshua O.; Obiora-Okafo, Ifeoma Amaoge; Dulta, Kanika; Omoarukhe, Fredrick O.; Igwegbe, Chinenye Adaobi; Ebhodaghe, Samuel Ogbeide

doi:10.1007/s41101-021-00121-0

Cited by 10 publications

(1 citation statement)

References 85 publications

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“…Considering these negative impacts of the CBZ contaminations in water, there requires more attention for the elimination of CBZ from aqueous streams considering suitable treatment method with higher performance and sustainability [52]. Researchers across the world [53][54][55][56][57][58][59][60][61] have reported the removal of drugs from aqueous systems through the approaches of physicochemical (membrane, coagulation, flocculation, photocatalytic degradation, advanced oxidation, etc.…”

Section: Overview Of Treatment Technologies For 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: Overview Of Treatment Technologies For Carbamazepinementioning

confidence: 99%

Recent Advances on the Aqueous Phase Adsorption of Carbamazepine

et al. 2022

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Treatment technologies for bakers’ yeast production wastewater

Igwegbe

Obiora-Okafo

Iwuozor

et al. 2022

Environ Sci Pollut Res

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Performances of PTFE and PVDF membranes in achieving the discharge limit of mixed anodic oxidation coating wastewaters treated by membrane distillation

Turk,

Zoungrana,

Cakmakci

2024

Environ Sci Pollut Res

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The mixed wastewater generated by anodic oxidation coating facilities contains high levels of various contaminants, including iron, aluminum, conductivity, chemical oxygen demand (COD), and sulfate. In this study, the effectiveness of the membrane distillation (MD) process using polytetrafluoroethylene (PTFE) and polyvinylidene fluoride (PVDF) membranes was investigated to treat mixed wastewater from an anodized coating factory. The results indicate that both hydrophobic membranes effectively removed targeted contaminants. However, the PTFE membrane achieved higher removal efficiencies, with over 99% removal of sulfate, conductivity, iron, and aluminum, 85.7% of COD, and 86% of total organic carbon (TOC). In contrast, the PVDF membrane exhibited a significant decline in removal efficiency as the temperature increased and performed well only at lower feed temperatures. The PTFE membranes outperformed the PVDF membranes in treating chemically intensive anodic oxidation wastewaters. This superiority can be attributed to the PTFE membrane's morphology and structure, which are less influenced by feed water temperature and chemicals. Additionally, its slippery surface imparts anti-adhesion properties, effectively preventing membrane fouling, and maintaining the treated water quality and flux for longer operation time.

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The Anodising Industry Wastewater: Considerations of Its Treatment for Environmental Protection

Cited by 10 publications

References 85 publications

Recent Advances on the Aqueous Phase Adsorption of Carbamazepine

Recent Advances on the Aqueous Phase Adsorption of Carbamazepine

Treatment technologies for bakers’ yeast production wastewater

Performances of PTFE and PVDF membranes in achieving the discharge limit of mixed anodic oxidation coating wastewaters treated by membrane distillation

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