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Recent Advances in Clean Technologies for Environmental Sustainability

A special issue of International Journal of Environmental Research and Public Health (ISSN 1660-4601). This special issue belongs to the section "Environmental Science and Engineering".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 1847

Special Issue Editor

School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
Interests: environmental-friendly functional materials; wastewater treatment; environmental biotechnology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With global emissions rising at an alarming rate, cities and companies are transitioning towards cleaner resources, fuels, energy, and technologies. Clean technologies could conserve natural resources and reduce pollution from extraction, manufacturing, and disposal. In addition, in a paradigm shift towards resource sustainability and the circular economy, wastes and wastewater streams are now recognized as sources of valuable resources, including clean water, precious metals, renewable energy, and nutrients. No longer the culprit of environmental pollution, diverse wastewater treatment and waste resource recovery now form an important part of governmental energy strategies, national security, and daily life. In this Special Issue, we aim to gather high-quality research outcomes on the recent advances in innovations for clean technologies. Specifically, the Issue will cover the following topics (though not limited to these):

  • Clean energy material and technology;
  • Wastewater treatment;
  • Renewable Energy;
  • Carbon capture, use, and storage;
  • Green materials and novel catalysts;
  • Novel biochar production processes, technologies, and systems.

You may choose our Joint Special Issue in Sustainability.

Dr. Dan Chen
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. International Journal of Environmental Research and Public Health 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 2500 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

  • wastewater treatment
  • resource recovery
  • carbon capture and storage
  • carbon neutrality
  • energy production
  • novel catalysts
  • biochar

Published Papers (1 paper)

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Research

15 pages, 8759 KiB  
Article
Waste-Based Ceramsite for the Efficient Removal of Ciprofloxacin in Aqueous Solutions
by Juan Qin, Yeting Fang, Jian Shi, Chiharu Tokoro, Mauricio Córdova-Udaeta, Keishi Oyama and Juncheng Zhang
Int. J. Environ. Res. Public Health 2023, 20(6), 5042; https://doi.org/10.3390/ijerph20065042 - 13 Mar 2023
Viewed by 1480
Abstract
Ciprofloxacin (CIP), a compound with bioaccumulation toxicity and antibiotic resistance, is frequently detected in water at alarming concentrations, which is becoming an increasing concern. In this study, a low-cost ceramsite was developed from industrial solid wastes through sintering to remove CIP from wastewater. [...] Read more.
Ciprofloxacin (CIP), a compound with bioaccumulation toxicity and antibiotic resistance, is frequently detected in water at alarming concentrations, which is becoming an increasing concern. In this study, a low-cost ceramsite was developed from industrial solid wastes through sintering to remove CIP from wastewater. The effects of adsorbent dosage, initial pH, contact time, initial CIP concentration, and temperature were explored. More than 99% of CIP (20–60 mg/L) was removed at around pH 2–4 by the ceramsite. The kinetic data fitted well with the pseudo-second-order model, revealing that chemisorption was the main rate-determining step. The isotherm data was better described by the Freundlich model, suggesting that CIP was removed by the formation of multiple layers on the heterogeneous surface. Moreover, the removal efficiency was practically higher than 95% during five regeneration cycles, when different regeneration methods were used, including calcination, HCl, and NaOH washing, indicating that the ceramsite exhibited outstanding reusability in removing CIP. The primary mechanism of CIP removal by the ceramsite was found to be the synergism of adsorption and flocculation, both of which depended on the release of Ca2+ from the ceramsite. In addition, strong Ca-CIP complexes could be formed through surface complexation and metal cation bridging between Ca2+ and different functional groups in CIP. Full article
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