Special Issue "Nitrification-Denitrification Processes in Bioreactors for Wastewater and Sludge Treatment"

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

Deadline for manuscript submissions: 31 January 2023 | Viewed by 192

Special Issue Editors

Dr. Antonio Albuquerque
E-Mail Website
Guest Editor
Department of Civil Engineering and Architecture, University of Beira Interior, 6201‐001 Covilhã, Portugal
Interests: nutrient removal; biofilm reactors; algae technology; water reuse; waste valorisation
Special Issues, Collections and Topics in MDPI journals
Dr. Qiulai He
E-Mail Website1 Website2
Guest Editor
Department of Water Engineering and Science, College of Civil Engineering, Hunan University, Changsha 410082, China
Interests: low-carbon wastewater treatment; energy and resources recovery; sludge reduction; aerobic granular sludge; biological nutrients removal

Special Issue Information

Dear Colleagues,

Nitrogen and phosphorous removal remain important and pressing challenges for water utilities with a view to discharging treated effluents into waterways or reusing water. In the last decade, significant advances have been observed in biological nutrient removal (BNR) through nitrification-denitrification pathways, either in wastewater or sludge treatment, using suspended sludge, hybrid flow, or biofilm reactors, with important discoveries on anaerobic ammonium oxidation, partial nitritation (SHARON, OLAND, CANON, and aerobic/anoxic deammonification processes), archaeal nitrification, and co-denitrification, as well as on the influence of the C/N ratio and interrelation between nitrifying, denitrifying, and phosphorus accumulating micro-organisms. Nowadays, research is focused on topics, such as the role of the alga-bacteria consortium in the simultaneous removal of N and P, optimization of nitrification-denitrification and phosphorous removal processes associated with sludge volume reduction, nutrient recovery towards the circular economy, nitrogen removal with minimal carbon demand, diversion of carbon for increasing biomethane production and lower carbon footprint, and reduction of greenhouse emissions. Therefore, this Special Issue aims to bring the most recent and innovative research on BNR, taking into account new challenges on sustainable water reuse, reduction of greenhouse emissions, circular economy, and needs in upgrading or retrofitting existing facilities.

Main topics are:

  • New developments and challenges in BNR;
  • Granular sludge for BNR;
  • Biological phosphorus removal in sludge acid fermentation;
  • Greenhouse emissions reduction in BNR;
  • Nutrient recovery;
  • Algal technology for BNR;
  • Modelling advances in BNR;
  • Sludge treatment and reduction technologies in BNR.

The Special Issue on “Nitrification-Denitrification Processes in Bioreactors for Wastewater and Sludge Treatment” is now open for submissions to be published as part of journal Water.

Dr. Antonio Albuquerque
Dr. Qiulai He
Guest Editors

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. 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 2200 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.


  • wastewater treatment
  • biological nutrient removal
  • nitrification-denitrification
  • phosphorous removal
  • nitrogen removal
  • water reuse
  • sludge treatment

Published Papers

This special issue is now open for submission.
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