Synthesis of smart ZnO@Mg(OH)2 core–shell nanocomposite and its application for methylene blue photocatalytic degradation: Life cycle sustainability assessment and techno-economics

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 64, P. 105605 - 105605

Published: June 7, 2024

Language: Английский

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Self-Powered advanced oxidation processes for removing contaminants from wastewater

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161443 - 161443

Published: March 1, 2025

Language: Английский

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The Evolving Landscape of Advanced Oxidation Processes in Wastewater Treatment: Challenges and Recent Innovations

Processes, Journal Year: 2025, Volume and Issue: 13(4), P. 987 - 987

Published: March 26, 2025

The increasing presence of persistent pollutants in industrial wastewater underscores the shortcomings conventional treatment methods, prompting adoption advanced oxidation processes (AOPs) for sustainable water remediation. This review examines development AOPs, focusing on their ability to produce hydroxyl radicals and reactive oxygen species (ROS) mineralize complex pollutants. Homogeneous systems such as Fenton’s reagent show high degradation efficiency. However, challenges like pH sensitivity, catalyst recovery issues, sludge generation, energy-intensive operations limit scalability. Heterogeneous catalysts, TiO2-based photocatalysts Fe3O4 composites, offer improved adaptability, visible-light activation, recyclability. Emerging innovations ultraviolet light emitting diode (UV-LED)-driven systems, plasma-assisted oxidation, artificial intelligence (AI)-enhanced hybrid reactors demonstrate progress energy efficiency process optimization. Nevertheless, key remain, including secondary byproduct formation, mass transfer constraints, economic feasibility large-scale applications. Integrating AOPs with membrane filtration or biological treatments enhances synergy, while advances materials science computational modeling refine design reaction mechanisms. Addressing barriers use, durability, practical adaptability requires multidisciplinary collaboration. highlights pivotal solutions security amid growing environmental pollution, urging targeted research bridge gaps between laboratory success real-world implementation.

Language: Английский

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The Electrooxidation of Synthetic Bipyridyl Herbicide Wastewaters with Boron-Doped Diamond Electrodes: A Technical and Economic Study to Boost Their Application for Pollution Prevention in the Agricultural Sector

Processes, Journal Year: 2024, Volume and Issue: 12(11), P. 2486 - 2486

Published: Nov. 8, 2024

Boron-doped diamond electrodes (BDDEs) offer a highly efficient pathway to mineralize recalcitrant compounds due their reduced energy requirements, fewer chemical inputs, and mechanical stability. In this work, the electrochemical degradation of paraquat (PQ) diquat (DQ) was studied using an undivided cell (Condiacell®-type) at circumneutral pH, under galvanostatic control. The roles applied current density, volumetric flow rate, herbicide concentration were systematically through central composite design (CCD) closed-flow reaction setup. Under best operating conditions (i.e., for PQ: 1.6 mA/cm2, 80 mL/min, 70 mg/L; DQ: 1.5 73 mg/L), spectrophotometric analysis evidenced that herbicides satisfactorily removed (ca. 100%) while mineralization degrees above 90%. Furthermore, produced effluents yielded significant increases in seed germination root length, which suggest reduction toxicity. Energy consumptions 0.13 0.18 kWh/g TOC are reported with cells PQ DQ treatments, respectively. treatments by electrooxidation estimated emit nearly 2.7 38.9 kg CO2/m3 water treated, cost around USD 250/m3. Carbon emissions could be greatly decreased (0.28 CO2/m3) (0.40 if electricity generated from renewable resources. Although study suggests use BDDE can considered as green alternative agrochemical removal lower carbon emissions, environmental profile process is determined degree renewability electrical grid each country or region.

Language: Английский

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Sustainability Analysis of Direct Methane to Methanol

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

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