Emerging Technologies for the Treatment and Reduction of Pollutants in Industrial Processes

A special issue of Eng (ISSN 2673-4117). This special issue belongs to the section "Chemical, Civil and Environmental Engineering".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 197

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INAMAT2, Departamento de Ciencias, Edificio de los Acebos, Universidad Pública de Navarra, Campus de Arrosadía, 31006 Pamplona, Spain
Interests: preparation, characterization, and catalytic activity of metal-supported catalysts; surface properties of solids; pollutants adsorption; environmental management; industrial waste valorization
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Special Issue Information

Dear Colleagues,

In recent years, the environmental impact of industrial processes has come under increasing scrutiny. With the global focus on sustainability and the need to reduce our carbon footprint, industries are being challenged to minimize the emission of pollutants and purify the effluents produced during manufacturing. To meet these demands, researchers and industry professionals are continuously exploring innovative solutions and technologies that can help transform traditional industrial processes into more sustainable and eco-friendly alternatives.

This Special Issue aims to showcase the latest advancements and case studies in emerging technologies for the treatment and reduction of pollutants in industrial processes. We invite contributions that highlight examples of industrial processes that have been adapted to meet current environmental requirements, including sustainable and green industrial processes, alternative processes, and circular economy practices.

Our focus will be on technologies and strategies that minimize polluting emissions, enhance the purification of pollutants, and promote the use of more sustainable raw materials. Contributions may cover a range of topics, including, but not limited to, the following: novel waste treatment technologies, advanced oxidation processes, membrane separation techniques, bio-based materials, and sustainable energy solutions.

By presenting these cutting-edge developments, we aim to inspire further innovation and collaboration in the field, ultimately contributing to the creation of a more sustainable and environmentally friendly industrial sector. Thank you for your consideration.

Prof. Dr. Antonio Gil Bravo
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Eng is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • sustainable industrial processes
  • green industrial processes
  • alternative processes
  • circular Economy
  • minimization of polluting emissions
  • purification of polluting emissions

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Published Papers (1 paper)

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Research

25 pages, 8331 KiB  
Article
Aqueous Cymbopogon citratus Extract Mediated Silver Nanoparticles: Part II. Dye Degradation Studies
by Himabindu Kurra, Aditya Velidandi, Ninian Prem Prashanth Pabbathi and Vikram Godishala
Eng 2025, 6(5), 102; https://doi.org/10.3390/eng6050102 - 19 May 2025
Abstract
This study investigates the catalytic potential of silver nanoparticles (AgNPs) synthesized using aqueous Cymbopogon citratus (lemongrass) extract for the degradation of toxic textile dyes, offering an eco-friendly solution to industrial wastewater treatment. The green-synthesized AgNPs demonstrated remarkable degradation efficiency (>94%) for multiple dyes, [...] Read more.
This study investigates the catalytic potential of silver nanoparticles (AgNPs) synthesized using aqueous Cymbopogon citratus (lemongrass) extract for the degradation of toxic textile dyes, offering an eco-friendly solution to industrial wastewater treatment. The green-synthesized AgNPs demonstrated remarkable degradation efficiency (>94%) for multiple dyes, such as rhodamine B, methyl red, methyl orange, methylene blue, eosin yellow, and Eriochrome black T, in the presence of sodium borohydride. Optimization studies employing a one-factor-at-a-time approach revealed the critical influence of AgNPs and reductant concentration, temperature, and pH. Kinetic analysis confirmed pseudo-first-order degradation behavior. Reactive species scavenging experiments established that hydroxyl radicals and holes played dominant roles in the degradation mechanism. Notably, the AgNPs retained catalytic activity across eight reuse cycles with negligible performance loss, demonstrating strong potential for repeated application. Comparative analysis with data from the literature highlights the superior performance of C. citratus-derived AgNPs in terms of reaction rate and efficiency. This work underscores the value of plant-extract-mediated AgNPs synthesis not only for its environmental compatibility but also for its catalytic effectiveness. The study advances the practical applicability of green nanotechnology in wastewater remediation and supports its integration into sustainable industrial practices. Full article
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