Degradation or humification: rethinking strategies to attenuate organic pollutants

Trends in biotechnology, Год журнала: 2022, Номер 40(9), С. 1061 - 1072

Опубликована: Март 23, 2022

Язык: Английский

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Molecular composition and chemodiversity of dissolved organic matter in wastewater sludge via Fourier transform ion cyclotron resonance mass spectrometry: Effects of extraction methods and electrospray ionization modes

Water Research, Год журнала: 2023, Номер 232, С. 119687 - 119687

Опубликована: Фев. 1, 2023

Язык: Английский

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Advances in Ultra-High-Resolution Mass Spectrometry for Pharmaceutical Analysis

Molecules, Год журнала: 2023, Номер 28(5), С. 2061 - 2061

Опубликована: Фев. 22, 2023

Pharmaceutical analysis refers to an area of analytical chemistry that deals with active compounds either by themselves (drug substance) or when formulated excipients product). In a less simplistic way, it can be defined as complex science involving various disciplines, e.g., drug development, pharmacokinetics, metabolism, tissue distribution studies, and environmental contamination analyses. As such, the pharmaceutical covers development its impact on health environment. Moreover, due need for safe effective medications, industry is one most heavily regulated sectors global economy. For this reason, powerful instrumentation efficient methods are required. last decades, mass spectrometry has been increasingly used in both research aims routine quality controls. Among different instrumental setups, ultra-high-resolution Fourier transform instruments, i.e., ion cyclotron resonance (FTICR) Orbitrap, gives access valuable molecular information analysis. fact, thanks their high resolving power, accuracy, dynamic range, reliable formula assignments trace mixtures obtained. This review summarizes principles two main types spectrometers, highlights applications, developments, future perspectives

Язык: Английский

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Hydrothermal Liquefied Bio-Oil from Municipal Sewage Sludge as a Reactive Filler in Polymeric Diphenylmethane Diisocyanate (p-MDI) Wood Adhesives

Sustainability, Год журнала: 2025, Номер 17(3), С. 1318 - 1318

Опубликована: Фев. 6, 2025

The growing environmental concerns associated with petrochemical-based adhesives have driven interest in sustainable alternatives. This study investigates the use of bio-oil, derived from municipal sewage sludge (MSS) through hydrothermal liquefaction (HTL), as a reactive filler polymeric methylene diphenyl diisocyanate (pMDI) wood adhesives. rich hydroxyl and carbonyl functional groups, was characterized using FTIR (Fourier transform infrared spectroscopy), elemental analysis, NMR (nuclear magnetic resonance). These groups interact isocyanate pMDI, enabling crosslinking enhancing adhesive performance. Various MSS bio-oil pMDI formulations were evaluated for tensile shear strength on Southern yellow pine veneers under dry wet conditions. formulation 1:4 to weight ratio exhibited best performance, achieving strengths 1.96 MPa (dry) 1.66 (wet). Higher content led decreased strength, attributed reduced increased moisture sensitivity. demonstrates potential MSS-derived additive adhesives, offering benefits without significantly compromising performance marking step toward greener solutions.

Язык: Английский

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Evaluation of the applicability of selected analytical techniques for determining the characteristics of humic substances sourced from by-products of the wastewater treatment process

The Science of The Total Environment, Год журнала: 2023, Номер 888, С. 164237 - 164237

Опубликована: Май 15, 2023

Although humic substances (HSs) are among the most valuable compounds in environment, they often constitute nuisance factors for wastewater treatment plants (WWTPs). However, their recovery from by-products of WWTPs opens up opportunities utilization. Therefore, this study aimed to evaluate suitability selected analytical methods determining structure, properties, and possible utilization HSs originating based on model (MHCs). As a consequence, proposed separate approaches initial in-depth characterization HSs. The results demonstrate that UV-Vis spectroscopy may be recognized as cost-effective approach preliminary Such method indeed gives similar information degree complexity MHCs X-EDS FTIR, similarly them allows differentiation particular fractions. In turn, FTIR techniques were recommended used in-deep analysis due ability detect heavy metals biogenic elements structure. Contrarily other studies, presented research indicates only absorbance coefficients - A253/A230, Q4/6, ΔlogK help distinguish fractions changes behavior, independently concentration (coefficient variation < 20%). Herein, fluorescence capacities found equally affected optical properties by concentration. Focusing obtained results, recommends quantitative comparison should proceeded standardization stability spectroscopic parameters characterizing solutions was achieved within 40 80 mg L-1. Among them, analyzed differentiated SUVA254 coefficient, which value almost 4 times higher SAHSs (8.69) than ABFASs (2.01).

Язык: Английский

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Spatial and molecular variations in forest topsoil dissolved organic matter as revealed by FT-ICR mass spectrometry

The Science of The Total Environment, Год журнала: 2023, Номер 895, С. 165099 - 165099

Опубликована: Июнь 26, 2023

Язык: Английский

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Review of Melanoidins as By-Product from Thermal Hydrolysis of Sludge: Properties, Hazards, and Removal

Processes, Год журнала: 2024, Номер 12(1), С. 135 - 135

Опубликована: Янв. 4, 2024

Melanoidins, as macromolecular heterogeneous organic polymers, are produced from the Maillard reaction between amino and carbonyl groups during thermal hydrolysis pretreatment (THP) of sludge. The brown color recalcitrance melanoidins pose a serious threat to wastewater treatment systems, such invalidating UV disinfection decreasing efficiency anaerobic digestion; thus, they have gradually received much concern in recent years. However, currently study on THP-origin is limited by lack reliable extraction quantification methods. This paper presents comprehensive review physical, chemical, biological properties different sources fill research gap melanoidins. adverse effects management sludge discussed, for first time, special attention paid potential environmental hazards natural ecosystems. removal technologies summarized compared well. Finally, suggested areas that future studies should focus provided. dedicated providing guidance melanoidin better development THP industry.

Язык: Английский

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Development and standardization of spectrophotometric assay for quantification of thermal hydrolysis-origin melanoidins and its implication in antioxidant activity evaluation

Journal of Hazardous Materials, Год журнала: 2024, Номер 476, С. 135021 - 135021

Опубликована: Июнь 27, 2024

Язык: Английский

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Inhibition of Maillard reaction during alkaline thermal hydrolysis of sludge

The Science of The Total Environment, Год журнала: 2021, Номер 814, С. 152497 - 152497

Опубликована: Дек. 27, 2021

Язык: Английский

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Formation of melanoidins and development of characterization techniques during thermal pretreatment of organic solid waste: A critical review

Fuel, Год журнала: 2022, Номер 334, С. 126790 - 126790

Опубликована: Ноя. 23, 2022

Язык: Английский

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