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Thin film microextraction of PAHs from wastewater samples using an oxine modified iron mesh followed by dispersive liquid-liquid microextraction prior to gas chromatography analysis.
Anal Methods
January 2025
Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
In the present research, an attempt has been made to develop a new thin film microextraction method for the extraction of several polycyclic aromatic hydrocarbons from aqueous samples collected from different industrial units prior to their analysis by gas chromatography combined with a flame ionization detector. In this approach, a thin iron mesh was modified by the formation of iron(II) oxinate on its surface and used for the extraction of analytes without an additional sorbent. For this purpose, first, the mesh was immersed in a sulfuric acid solution and then transferred into an 8-hydroxy quinoline (oxine) solution dissolved in ammonia solution.
View Article and Find Full Text PDFUnderstanding the limitations of substrate degradation in bioelectrochemical systems.
Front Microbiol
January 2025
School of Engineering, Newcastle University, Newcastle upon Tyne, United Kingdom.
Microbial Fuel Cells (MFCs) are innovative environmental engineering systems that harness the metabolic activities of microbial communities to convert chemical energy in waste into electrical energy. However, MFC performance optimization remains challenging due to limited understanding of microbial metabolic mechanisms, particularly with complex substrates under realistic environmental conditions. This study investigated the effects of substrate complexity (acetate vs.
View Article and Find Full Text PDFEnhanced bioelectrochemical degradation of Thiabendazole using biostimulated Tunisian hypersaline sediments: kinetics, efficiency, and microbial community shifts.
Front Microbiol
January 2025
ISBST, BVBGR-LR11ES31, Biotechpole Sidi Thabet, University of Manouba, Ariana, Tunisia.
Thiabendazole (TBZ), a recalcitrant fungicide, is frequently applied in postharvest fruit treatment and generates significant volumes of industrial wastewater (WW) that conventional treatment plants cannot handle. This explores a bioelectrochemical system (BES) for TBZ degradation using Tunisian hypersaline sediments (THSs) as inoculum. Four sets of BES, along with biological controls, were tested using THS subjected to different levels of TBZ biostimulation.
View Article and Find Full Text PDFLiquid crystal sensor for Cr(III)-citrate detection via interfacial coagulation.
Anal Chim Acta
February 2025
Department of Chemistry, Tamkang University, New Taipei City, 25137, Taiwan. Electronic address:
Background: Trivalent chromium (Cr(III)) and its highly soluble carboxyl complexes, often discharged into the environment by industries such as electroplating, leather tanning, and textile manufacturing, present severe risks to human health and ecosystems due to their high toxicity. These compounds are notoriously difficult to detect and remove during wastewater treatment, as they can persist in aqueous environments. Consequently, there is a pressing need for the development of simple, cost-effective, and reliable methods for their detection, which can improve monitoring, facilitate timely interventions, and enhance environmental protection efforts.
View Article and Find Full Text PDFCommunity assembly and succession of the functional membrane biofilm in the anammox dynamic membrane bioreactor: Deterministic assembly of anammox bacteria.
Environ Res
January 2025
State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Siping Road, Shanghai 200092, P. R. China. Electronic address:
The anammox dynamic membrane bioreactor (DMBR) exhibits potential for efficient nitrogen removal via anammox processes. The functional membrane biofilm in the anammox DMBR significantly enhances nitrogen removal, ensuring robust operation. Nevertheless, ecological mechanisms underpinning the nitrogen removal function of the membrane biofilm remain unclear.
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