Special Issue "Microbiological Wastewater Treatment"

A special issue of Microorganisms (ISSN 2076-2607). This special issue belongs to the section "Environmental Microbiology".

Deadline for manuscript submissions: 30 September 2019

Special Issue Editor

Guest Editor
Prof. Stephen R. Smith

Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, UK.
Website | E-Mail
Interests: agricultural utilisation; biosolids; biowaste; fertiliser value; environmental impact; human health

Special Issue Information

Dear Colleagues,

Wastewater treatment is vital to protect human health and the environment. Biological processes are necessary for the treatment of non-settleable solids and BOD and for nitrification reactions. However, additional demands are increasingly being placed on biological treatment processes to remove nutrients from wastewater and achieve higher environmental standards of treatment. Biological wastewater treatment also produces a residual sludge, which requires treatment and appropriate management. The current biological treatment technologies are based on engineering principles involving suspended or attached growth bioreactors that were developed over 100 years ago. These processes have served society well; however, their microbiology remains relatively poorly understood, and more innovative strategies, technologies, and bioengineering are also required to meet future regulatory policies, service efficiency, value recovery, and consumers’ expectations. For instance, innovation is necessary to design more energy-efficient processes, increase treatment intensification to reduce the footprint of wastewater treatment plants, and utilise wastewater as a resource to produce high-value chemicals and derivatives, reducing costs and waste sludge production and generating revenues. Alternative technologies are also necessary that are appropriate and affordable in a developing country context.

This Special Issue devoted to “Microbiological Wastewater Treatment” aims to present the current state of the art and innovative research that will address these challenges, so that wastewater treatment systems can adapt and be fit for purpose, robust, and resilient for the next 100 years. 

Prof. Stephen R. Smith
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 papers will be 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. Microorganisms 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 1000 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.


  • activated sludge process
  • attached growth
  • bioengineering, biofilm
  • floc
  • nutrient removal
  • resource recovery
  • secondary clarification
  • sludge
  • suspended growth
  • trickling filter
  • wastewater treatment

Published Papers

This special issue is now open for submission.
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