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Water
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Application of Membrane Separation Technology in Water and Wastewater Treatment
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Application of Membrane Separation Technology in Water and Wastewater Treatment

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

Deadline for manuscript submissions: 20 March 2025 | Viewed by 2035

Special Issue Editor

Dr. Agnieszka Urbanowska

E-Mail Website
Guest Editor
Faculty of Environmental Engineering, Wrocław University of Science and Technology, Wybrzeże S. Wyspiańskiego 27, 50-370 Wrocław, Poland
Interests: water treatment; wastewater treatment; wastewater recovery; liquid fraction of diges-tate; pressurized membrane processes; integrated processes; closed-loop economy

Special Issue Information

Dear Colleagues,

with a growing world population, demand for water, food, and energy is increasing. Additionally, the deterioration in the quality of natural waters and the increasing demands placed on water for human consumption necessitate the use of modern separation techniques. Moreover, the transition to a closed-loop economy requires the development of innovative techniques and technological solutions in the water and wastewater industry. Membrane processes have become increasingly popular in recent years for treating water and wastewater due to the limited effectiveness of traditional treatment methods in dealing with the variety of contaminants present in the water supply. They are widely used in many industrial and environmental sectors for removing various pollutants. It is worth noting also that membranes can effectively treat solutions with varying pollutant concentrations. Therefore, I encourage the submission of articles on recent advances and advanced membrane processes for water and wastewater treatment for this Special Issue. The aim of this Special Issue is to discuss the latest discoveries in this field, provide directions for future research, and offer technical parameters for engineering applications. Original research and review papers focusing on topics such as membrane-based water and wastewater treatment, membrane fabrication, membrane fouling control, membrane process simulation and modelling, and engineering applications in the water and wastewater sector are all welcome.

Dr. Agnieszka Urbanowska
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 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 2600 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

  • separation techniques
  • membrane-based water and water treatment technology
  • membrane application
  • mem-brane fouling
  • organic contaminants
  • inorganic contaminants
  • high-quality water

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Published Papers (2 papers)

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Research

14 pages, 1163 KiB  
Article
Application of Low-Pressure Nanofiltration Membranes NF90 and NTR-729HF for Treating Diverse Wastewater Streams for Irrigation Use
by Charith Fonseka, Seongchul Ryu, Sukanyah Devaisy, Jaya Kandasamy, Lee McLod, Harsha Ratnaweera and Saravanamuthu Vigneswaran
Water 2024, 16(14), 1971; https://doi.org/10.3390/w16141971 - 11 Jul 2024
Cited by 2 | Viewed by 828
Abstract
The application of low-pressure nanofiltration (NF) was investigated for three different applications: water reuse from acid mine drainage (AMD), surface water containing natural organic matter (NOM) and agricultural reuse of microfiltered biologically treated sewage effluent (MF-BTSE). AMD contains many valuable rare earth elements [...] Read more.
The application of low-pressure nanofiltration (NF) was investigated for three different applications: water reuse from acid mine drainage (AMD), surface water containing natural organic matter (NOM) and agricultural reuse of microfiltered biologically treated sewage effluent (MF-BTSE). AMD contains many valuable rare earth elements (REEs) and copper (Cu) that can be recovered with fresh water. The NF90 membrane was investigated for recovery of fresh water from synthetic AMD. A steady permeate flux of 15.5 ± 0.2 L/m2h was achieved for pretreated AMD with over 98% solute rejection. NF90 achieved a high dissolved organic carbon (DOC) rejection of 95% from surface water containing NOM where 80% of the organic fraction was hydrophilic, mainly humics. The NF process maintained a high permeate flux of 52 LMH at 4 bars. The MF-BTSE was treated by NTR-729HF for agricultural reuse. NTR-729HF membranes were capable of rejecting DOC and inorganics such as sulfates and divalent ions (SO42−, Ca2+ and Mg2+) from MF-BTSE, with less than 20% rejection of monovalent (Na+ and Cl−) ions. The sodium adsorption ratio (SAR) was significantly reduced from 39 to 14 after treatment through NTR-729HF at 4 bar. The resulting water was found to be suitable to irrigate salt-sensitive crops. Full article
(This article belongs to the Special Issue Application of Membrane Separation Technology in Water and Wastewater Treatment)
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16 pages, 4018 KiB  
Article
An Integrated Process of Struvite Precipitation/Membrane Filtration Using Flat Ceramic Membranes Is an Effective Method for the Treatment of Liquid Fraction Digestate from a Municipal Biogas Plant
by Agnieszka Urbanowska and Izabela Polowczyk
Water 2024, 16(13), 1928; https://doi.org/10.3390/w16131928 - 6 Jul 2024
Viewed by 819
Abstract
One method of processing municipal waste biogas plant digestate is to separate it into solid and liquid fractions. Since the digestate can be a potential source of water, it must undergo the appropriate treatment. Pressurised membrane processes preceded by struvite precipitation can be [...] Read more.
One method of processing municipal waste biogas plant digestate is to separate it into solid and liquid fractions. Since the digestate can be a potential source of water, it must undergo the appropriate treatment. Pressurised membrane processes preceded by struvite precipitation can be particularly useful in this regard. Experiments were conducted to determine the effectiveness of treating the digestate liquid fraction from a municipal waste biogas plant using an integrated process that combines struvite precipitation with membrane filtration, employing flat ceramic membranes with different cut-off values. The results confirm that this integrated process is effective for digestate treatment. A significantly increased improvement in the final quality of the test solution and a reduction in membrane fouling intensity were observed compared to those of these processes conducted separately. It is noteworthy that the purest solution was obtained when struvite precipitation and filtration through a flat ceramic membrane with a cut-off of 1 kDa were combined. This approach enabled the precipitation of struvite, a valuable fertiliser; the protection of the membranes from fouling; and a high degree of organic compound removal. The recovered water from the digestate (after dilution or removal of excess salts) can be used in agriculture or horticulture. Full article
(This article belongs to the Special Issue Application of Membrane Separation Technology in Water and Wastewater Treatment)
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