Special Issue "Biological Treatment of Organic Waste in Wastewater—Towards a Circular and Bio-Based Economy"

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

Deadline for manuscript submissions: 1 July 2020.

Special Issue Editor

Dr. Marianna Garfí
E-Mail Website
Guest Editor
GEMMA—Group of Environmental Engineering and Microbiology, Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya.BarcelonaTech (UPC), Barcelona, Spain
Interests: water and wastewater treatment; anaerobic digestion; microalgae; nature-based technology; resources recovery; LCA; sustainability; circular & bio-based economy

Special Issue Information

Dear Colleagues,

Due to population growth, accelerated urbanization, and economic development, the quantity of both industrial and urban wastewater generated and its overall pollution load are increasing globally. In this context, the management of organic waste/sub-products from wastewater is an issue of great concern.

Traditionally, waste has been considered as something that is not useful and has been often neglected over the years. However, the world economic model is currently undergoing a paradigm shift from linear (waste-producing) to circular (waste-to-resources) and bio-based (using renewable biological resources) economies. Thus, there is a need to investigate innovative and cost-effective technologies and processes for the safe and environmentally friendly management of organic waste generated in wastewater treatment systems.

In this context, the biological treatment of organic waste/sub-products from both urban and industrial wastewater is a promising solution to reduce energy and the carbon footprint associated with their treatment and to shift the paradigm from waste treatment to resource recovery.

This Special Issue is focused on innovative solutions for the biological treatment of organic waste from wastewater. In particular, the submission of research articles, case studies, and review articles related but not limited to the following topics is encouraged:

  • Process mechanisms and operation, optimization, monitoring, modeling, and applications
  • Removal of pathogens and emerging pollutants
  • Reuse and circular economy
  • Resource recovery (e.g., nutrients recovery, high-value compounds) and energy valorization (e.g., biogas)
  • Life cycle assessment and carbon footprint
  • Tecno-economic assessment and social perception of waste-to-resource processes
  • Low-cost technologies
  • Policy

Dr. Marianna Garfí
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. Water 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 1800 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

  • anaerobic and aerobic digestion
  • composting
  • gasification
  • emerging pollutants
  • reuse
  • nutrients recovery
  • life cycle assessment
  • sustainability
  • circular and bio-based economy

Published Papers (1 paper)

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Research

Open AccessArticle
Formulation and Characterization of a Heterotrophic Nitrification-Aerobic Denitrification Synthetic Microbial Community and its Application to Livestock Wastewater Treatment
Water 2020, 12(1), 218; https://doi.org/10.3390/w12010218 - 13 Jan 2020
Abstract
There have been many studies on single strains in wastewater treatment and a new synthetic microbial community was prepared in this study, which provides a reference for the application of heterotrophic nitrification-aerobic denitrification in actual wastewater treatment. The growth period distribution of the [...] Read more.
There have been many studies on single strains in wastewater treatment and a new synthetic microbial community was prepared in this study, which provides a reference for the application of heterotrophic nitrification-aerobic denitrification in actual wastewater treatment. The growth period distribution of the composite bacteria was determined by plotting growth curves with different sole nitrogen sources, and the influence of the carbon source, carbon to nitrogen ratio (C/N) ratio, pH, and temperature on ammonia removal by the composite heterotrophic nitrifying-aerobic denitrifying strain was investigated. The optimal conditions for the heterotrophic nitrification process were sodium citrate as the carbon source, a C/N ratio of 10, a pH of 7, and a temperature of 30 °C, and only trace amounts of nitrate and nitrite were observed during the process. When the sequencing batch reactor (SBR) of a pig farm wastewater treatment plant was inoculated with the synthetic microbial community, the average removals of the chemical oxygen demand (COD) and ammonia nitrogen in the effluent were 92.61% and 20.56%, respectively. From the results, the synthetic microbial community was able to simultaneously perform heterotrophic nitrification-aerobic denitrification indicating great potential for full-scale applications. Full article
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