Advances in UV Water and Wastewater Treatment Technology

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Wastewater Treatment and Reuse".

Deadline for manuscript submissions: closed (20 October 2023) | Viewed by 2762

Special Issue Editor

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Guest Editor
Environment and Natural Resources, Department of Material Engineering, Azrieli College of Engineering, Jerusalem 9103501, Israel
Interests: advanced water and wastewater treatments; ozone and UV-based disinfection; sea water desalination; environmental redox processes; groundwater contamination

Special Issue Information

Dear Colleagues,

The use of UV light for treating water and wastewater has exponentially increased over the past decade, especially in view of the recent global viral pandemic. UV light is highly effective in the disinfection of (water) pathogens, including viruses, bacteria and protozoa. In addition, UV can directly oxidize many harmful organic contaminants (e.g., NDMA), or indirectly oxidize such contaminants through the production of •OH radicals (UV-based advanced oxidation). Other advantages of UV-based technologies are their green chemical-free nature, the low interaction of emitted light with non-target water constituents and the potential use of sunlight as a UV source. The ever-growing interest in UV treatment leads to the development of new technologies, such as UV light-emitting diodes (LEDs) and other emerging UV sources. These, in turn, promote new UV applications, such as the disinfection of surfaces against coronavirus and the development of sustainable point-of-use UV-based systems for low-income communities.

This Special Issue will focus on the latest achievements and trends in UV water and wastewater treatment: New UV technologies, new UV applications, novel mechanistic understandings, inactivation/oxidation models and reactor/system design. We accept papers on both UV disinfection and oxidation, including UV-based advanced oxidation. Papers providing results from pilot- and full-scale systems are also accepted, as well as high-quality case studies with global interest.

Research articles, reviews, and short communications on all UV topics are welcomed.

Dr. Yaal Lester
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at 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. Water is an international peer-reviewed open access semimonthly 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 2600 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.


  • UV disinfection
  • UV water treatment
  • UV oxidation
  • advanced oxidation
  • water pathogens
  • water reuse

Published Papers (1 paper)

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14 pages, 4863 KiB  
Analysing the Reciprocity Law for UV-LEDs in Water Disinfection of Escherichia coli, Enterococcus faecalis, and Clostridium perfringens
by Ahmed Kamel, Ana Palacios, Manuel Fuentes and Marta Vivar
Water 2023, 15(2), 352; - 14 Jan 2023
Cited by 2 | Viewed by 2206
The aim of this study is to verify the reciprocity law in the wastewater disinfection process using UV light. The optical power UV-LEDs used were 1.6 mW and 50 mW, and the wavelengths were 265 nm and 275 nm. E. coli, Enterococcus [...] Read more.
The aim of this study is to verify the reciprocity law in the wastewater disinfection process using UV light. The optical power UV-LEDs used were 1.6 mW and 50 mW, and the wavelengths were 265 nm and 275 nm. E. coli, Enterococcus faecalis, and Clostridium perfringens were the three microorganisms analysed in the study. The results showed lower inactivation rates around 0.063–0.065 cm2/mJ for 265 nm and 0.047–0.049 cm2/mJ for 275 nm for the Clostridium perfringens compared with the other two bacteria. For E. coli and Enterococcus faecalis, the inactivation rate was almost identical; 0.28 and 0.21 cm2/mJ, respectively, using 265 nm wavelength. There was a slightly better inactivation performance using the medium-power 275 nm UV-LEDs of 0.39 cm2/mJ and 0.29 cm2/mJ for E. coli and Enterococcus faecalis, respectively, and 0.33 cm2/mJ and 0.26 cm2/mJ using the low-power 275 nm UV-LEDs. The analysed data justify the reciprocity law for UV-LEDs disinfection using 265 nm and 275 nm UV-LEDs with two optical powers of 1.6 mW and 50 mW. Full article
(This article belongs to the Special Issue Advances in UV Water and Wastewater Treatment Technology)
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