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Sustainability
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Wastewater Purification, Treatment, and Reuse
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Wastewater Purification, Treatment, and Reuse

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Water Management".

Deadline for manuscript submissions: closed (20 April 2024) | Viewed by 1961

Special Issue Editors

Dr. Liang Fu

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Guest Editor
School of Environment, Northeast Normal University, Changchun 130117, China
Interests: biological wastewater treatment; bioresources recovery
Special Issues, Collections and Topics in MDPI journals
Dr. Yongze Lu

E-Mail Website
Guest Editor
School of Energy and Environment, Southeast University, Nanjing 210096, China
Interests: low-carbon technologies in wastewater treatment; plateau wastewater treatment; greenhouse gas utilization in wastewater treatment
Dr. Fang Zhang

E-Mail Website
Guest Editor
College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
Interests: anaerobic sludge treatment and resources recovery; membrane separation
Dr. Jun Wu

E-Mail Website
Guest Editor
College of Environment, Hohai University, Nanjing 210098, China
Interests: the removal of pollutants from wastewater by iron-based materials; water pollution control

Special Issue Information

Dear Colleagues,

Every day, an enormous amount of wastewater is produced in industrial and municipal sectors. Traditional wastewater treatment plants consume a lot of energy to remove nutrients and pollutants. Water crisis has become one of the most severe problems in many countries due to water resource shortage and water pollution. Nowadays, sustainable wastewater treatment technologies are attracting evermore attention. Wastewater is a new source of freshwater; moreover, the combination of wastewater treatment and resources/energy recovery is an important pathway to increase cost efficiency and environmental benefits for wastewater treatment plants. This Special Issue on “Wastewater purification, treatment, and reuse” focuses on wastewater treatment, resource recovery, and reclaimed water. The aim is to disseminate the latest researches in these interdisciplinary areas related to sustainable development in wastewater treatment technologies.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but not limited to) the following:

  • Low-carbon and sustainable technologies in wastewater treatment;
  • Bioresources and energy recovery from wastewater;
  • Environmental functional materials in pollutants removal;
  • Wastewater sludge treatment and resources recovery;
  • Reclaimed water uses, storage, and safety.

We look forward to receiving your contributions.

Dr. Liang Fu
Dr. Yong-Ze Lu
Dr. Fang Zhang
Dr. Jun Wu
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

  • wastewater treatment
  • resources recovery
  • microalgae
  • environmental functional materials
  • anaerobic sludge digestion
  • biogas

Published Papers (2 papers)

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Research

20 pages, 2141 KiB  
Article
Synthesis of Responsive Membranes for Water Recovery through Desalination of Saline Industrial Effluents
by Elizabeth Vazquez, Claudia Muro, Sergio Pérez-Sicairos, Yolanda Alvarado, Vianney Díaz-Blancas and Karina Hernández
Sustainability 2024, 16(13), 5796; https://doi.org/10.3390/su16135796 - 8 Jul 2024
Viewed by 337
Abstract
Polysulfone (PSF) and smart polymers (SRPs)—including polyacrylic acid (AAc), poly N-isopropylacrylamide (NIPA), and sulfonated poly(1,4-phenylene ether-ether-sulfone) (SPEES)—were used in the synthesis of responsive membranes (PSF-SRP) for application in sustainable desalination processes involving food industry effluents for water recovery and recycling. With the inclusion [...] Read more.
Polysulfone (PSF) and smart polymers (SRPs)—including polyacrylic acid (AAc), poly N-isopropylacrylamide (NIPA), and sulfonated poly(1,4-phenylene ether-ether-sulfone) (SPEES)—were used in the synthesis of responsive membranes (PSF-SRP) for application in sustainable desalination processes involving food industry effluents for water recovery and recycling. With the inclusion of SRPs, PSF-SRP membranes showed different characteristics when compared to the PSF membrane. AAc caused fibers to occur in the surface structure, increasing the MWCO of the PSF membrane, whereas NIPA and SPEES diminished the MWCO, resulting in ultrafiltration and nanofiltration membranes. Furthermore, NIPA and SPEES provided high mechanical and thermal resistance when incorporated into the PSF membrane. The performance of the membranes also showed important changes. In comparison with only PSF, PSF-SPEES and PSF-NIPA increased the water flux and salt rejection percentage by 20–30%. In addition, the highest membrane fouling resistance was observed with PSF-NIPA, while PSF-AAc and PSF-NIPA-AAc presented the lowest resistances. Therefore, PSF-NIPA and PSF-SPEES resulted in membrane improvement, including stimuli-responsive properties, allowing for effective saline effluent treatment. Full article
(This article belongs to the Special Issue Wastewater Purification, Treatment, and Reuse)
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14 pages, 12028 KiB  
Article
Influence of Low Air Pressure on the Partial Denitrification-Anammox (PD/A) Process
by Wen Dai, Zhenpeng Han, Yongze Lu, Shuping Li, Gangyin Yan and Guangcan Zhu
Sustainability 2023, 15(13), 9907; https://doi.org/10.3390/su15139907 - 21 Jun 2023
Viewed by 1022
Abstract
Low air pressure is a feature of high-altitude regions. Domestic wastewater from such regions typically has a low carbon-to-nitrogen ratio (C/N ratio). These factors combine to make traditional biological nitrogen removal in high-altitude regions inefficient and more energy-intensive. The partial denitrification-anaerobic ammonium oxidation [...] Read more.
Low air pressure is a feature of high-altitude regions. Domestic wastewater from such regions typically has a low carbon-to-nitrogen ratio (C/N ratio). These factors combine to make traditional biological nitrogen removal in high-altitude regions inefficient and more energy-intensive. The partial denitrification-anaerobic ammonium oxidation (PD/A) process was reported to remove ammonia nitrogen from municipal sewage, consuming fewer carbon sources and requiring no aeration supply. In this study, we set up laboratory-scale reactors in simulated high-altitude environmental conditions, and studied the effect of air pressure on the PD/A process. We found that low pressure promotes nitrogen removal efficiency (NRE), achieving 93.0 ± 0.3% at 65 kPa, and the contribution rate of anaerobic ammonium oxidation (anammox) to nitrogen removal increased to 77.7%. Lower dissolved oxygen (DO) concentrations caused by lower air pressure were the reason for higher nitrite accumulation efficiency (NAE) in a partial denitrification (PD) system, with measured values of 78.4 ± 2.8% at 65 kPa. The anammox process was promoted by low air pressure, mainly because the low air pressure resulted in higher anaerobic ammonia-oxidizing bacteria activity, with specific anammox activity (SAA) reaching 26.3 mg·N/(g·VSS·d). Although the relative abundance of partial-denitrifying bacteria declined slightly, at 65 kPa compared with 96 kPa, they were still the dominant genus of the PD/A sludge, and continued to generate nitrite nitrogen steadily, even at low air pressures. The anaerobic ammonia-oxidizing bacterial abundance remained relatively stable, but their activity was increased, which aided the PD/A process. This study demonstrates how low pressure promotes the PD/A process, indicating the possibility of sustainable improved nitrogen removal in high-altitude regions. Full article
(This article belongs to the Special Issue Wastewater Purification, Treatment, and Reuse)
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