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Advances in Sustainable Wastewater Treatment Technologies

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Engineering and Science".

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 2125

Special Issue Editors


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Guest Editor
Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 15D, Lab. CF-INABEC, 87036 Arcavacata di Rende (Cs), Italy
Interests: physical chemistry; wastewater treatment; adsorption kinetics models; natural materials for pollutants adsorption; photocatalytic degradation of bacteria and endocrine-disrupting chemicals; biomass conversion; cellulose/lignocellulose polymer composites; bioenergy production from feedstocks

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Guest Editor
Department of Environmental Engineering, University of Calabria, 87036 Rende, Italy
Interests: environmental engineering; implementation of adsorption kinetics models; design of chemical-physical water filtration systems; flow and transport modeling of polluted water into passive or reactive porous media; groundwater and surface water remediation; hydrogeophysics; inverse modeling; estimation of pollutants natural background levels for water and soil
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Special Issue Information

Dear Colleagues,

This Special Issue will collect the latest and most significant scientific advances and review articles relating to all technological advances and innovations in the field of wastewater treatment and purification.

In recent decades, one of the major environmental problems to be faced is the reclamation of water bodies including sea, lakes, rivers, and aquifers polluted by different classes of chemicals, such as heavy metals, organic compounds, endocrine-disrupting chemicals, pharmaceuticals, dyes, detergents, bacteria, plastic, etc. In this regard, the development of new technologies, materials, and models play a crucial role in the defense of the environment and human health.

The use of materials of different origins (natural, polymeric, inorganic, organic, hybrid, etc.) for the removal of dangerous contaminants through adsorption, degradation, and/or transformation processes are considered of particular interest. The use of materials whose production or supply is of low environmental and economic impact, natural substrates, and/or waste materials suitably modified for such applications, is certainly welcomed. The experimentation of innovative membranes and nanomaterials for the desalination and separation of contaminants from industrial process waters is another research area that falls within the topic of this Special Issue. Particular importance stems from their characterization, the estimation of their purifying capacities, and the understanding and modeling of the processes at play. New experimental and theoretical approaches are encouraged.

Dr. Antonio Tursi
Dr. Francesco Chidichimo
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. Sustainability 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 2400 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

  • Innovative wastewater treatment technologies
  • Environmental depollution
  • Removal of emergent contaminants
  • Advanced oxidation processes
  • Adsorption of inorganic and organic contaminants from water
  • Photocatalytic degradation of pollutants such as bacteria and viruses
  • Advanced membrane technology and nanomaterials for water and wastewater applications
  • Characterization methods for innovative materials
  • Implementation of adsorption kinetics models
  • Design of chemical-physical-biological systems for wastewater remediation

Published Papers (1 paper)

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Research

14 pages, 2058 KiB  
Article
High-Loaded Bioflocculation Membrane Reactor of Novel Structure for Organic Matter Recovery from Sewage: Effect of Dissolved Oxygen on Bioflocculation and Membrane Fouling
by Liguo Wan, Ling Xiong, Lijun Zhang and Wenxi Lu
Sustainability 2020, 12(18), 7385; https://0-doi-org.brum.beds.ac.uk/10.3390/su12187385 - 09 Sep 2020
Cited by 5 | Viewed by 1682
Abstract
In this study, a new structure of high-load membrane bioreactor (HLB-MR) was used to treat urban sewage, and the effects of dissolved oxygen (DO) on biological flocculation and membrane pollution were researched. Parallel comparative experiments were used to investigate the concentration and recovery [...] Read more.
In this study, a new structure of high-load membrane bioreactor (HLB-MR) was used to treat urban sewage, and the effects of dissolved oxygen (DO) on biological flocculation and membrane pollution were researched. Parallel comparative experiments were used to investigate the concentration and recovery efficiency of organic matter, the bioflocculation effect, the content of extracellular polymer substance (EPS), the concentration of metal cations, membrane fouling status and microbial community structure in the reactors under the conditions of 1–2 and 6–8 mg/L. The flocculation efficiency of HLB-MR was 83% and 89% when DO was 1–2 and 6–8 mg/L, respectively. Under DO of 6–8 mg/L, the contents of bound and free EPS in the HLB-MR were 15.64 mg/gVSS and 8.71 mg/L, respectively. These values were significantly higher than those obtained when DO was 1–2 mg/L (11.83 mg/gVSS and 6.56 mg/L, respectively). Moreover, the concentrations of magnesium and aluminum in the concentrate of the HLB-MR were significantly higher when DO was 6–8 mg/L. Under higher DO concentration, there would be more EPS combined with metal cations, and thus fixed in the sludge substrate, the process of which promoted the bioflocculation. Changes in the transmembrane pressure (TMP) showed that the HLB-MR at a higher DO concentration suffered more serious membrane fouling. The species difference between the supernatant and precipitate was more significant under a higher DO concentration. The plankton species in the supernatant, e.g., norank_p__Saccharibacteria, norank_f__Neisseriaceae, and 12up, were likely to exacerbate membrane fouling. However, the species in the precipitate like Trichococcus, Ornithinibacter, and norank_f__Saprospiraceae may have a positive effect on bioflocculation. Full article
(This article belongs to the Special Issue Advances in Sustainable Wastewater Treatment Technologies)
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