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Membranes
Special Issues
Current Research into Membranes in Water Desalination Technology and Engineering
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Current Research into Membranes in Water Desalination Technology and Engineering

A special issue of Membranes (ISSN 2077-0375). This special issue belongs to the section "Membrane Applications for Water Treatment".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 416

Special Issue Editors

Dr. Jimoh Kayode Adewole

E-Mail Website
Guest Editor
Membrane Science and Engineering Lab, Process Engineering Department, National University of Science and Technology, Sohar 311, Oman
Interests: membrane technology for varieties of applications (gas separation, water and wastewater treatment, biomedicine, energy generation and controlled release of oilfield chemicals); process intensification; modeling; simulation
Prof. Dr. Hsueh-Chia Chang

E-Mail Website
Guest Editor
Department of Chemical and Biomolecular Engineering, Center for Micro-Fluidics and Medical Diagnostics, University of Notre Dame, Notre Dame, IN 46556, USA
Interests: ion-selective membranes; electrochemical sensors; desalination; on-chip membrane fabrication; electrokinetics in nanoporous membranes

Special Issue Information

Dear Colleagues,

The process of desalinating seawater and brackish groundwater has garnered more attention as a tenable means of satisfying the continuously increasing demand for freshwater, particularly in locations that experience persistent water scarcity, like arid coastal regions or islands. Furthermore, saltwater desalination is becoming an increasingly viable alternative for a resilient water supply as climate change affects precipitation patterns and intensifies droughts.

This Special Issue on “Current Research of Membranes in Water Desalination Technology and Engineering” will provide a platform for researchers to examine, discuss, and share the current advancements in membrane-based water desalination processes.

Original research papers, comprehensive reviews, and short communications are welcome as contributions to this Special Issue.

Dr. Jimoh Kayode Adewole
Prof. Dr. Hsueh-Chia Chang
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. Membranes 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 2700 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

  • membrane technology
  • desalination
  • distillation
  • reverse osmosis
  • water filtration
  • fouling
  • osmosis
  • electrodialysis

Published Papers (1 paper)

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Research

32 pages, 15433 KiB  
Article
Screening the Performance of a Reverse Osmosis Pilot-Scale Process That Treats Blended Feedwater Containing a Nanofiltration Concentrate and Brackish Groundwater
by Christopher R. Hagglund and Steven J. Duranceau
Membranes 2024, 14(8), 164; https://doi.org/10.3390/membranes14080164 - 24 Jul 2024
Viewed by 223
Abstract
A two-stage pilot plant study has been completed that evaluated the performance of a reverse osmosis (RO) membrane process for the treatment of feedwater that consisted of a blend of a nanofiltration (NF) concentrate and brackish groundwater. Membrane performance was assessed by monitoring [...] Read more.
A two-stage pilot plant study has been completed that evaluated the performance of a reverse osmosis (RO) membrane process for the treatment of feedwater that consisted of a blend of a nanofiltration (NF) concentrate and brackish groundwater. Membrane performance was assessed by monitoring the process operation, collecting water quality data, and documenting the blended feedwater’s impact on fouling due to microbiological or organic means, plugging, and scaling, or their combination. Fluorescence and biological activity reaction tests were used to identify the types of organics and microorganisms present in the blended feedwater. Additionally, scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS) were used to analyze suspended matter that collected on the surfaces of cartridge filters used in the pilot’s pretreatment system. SEM and EDS were also used to evaluate solids collected on the surfaces of 0.45 µm silver filter pads after filtering known volumes of NF concentrate and RO feedwater blends. Water quality analyses confirmed that the blended feedwater contained little to no dissolved oxygen, and a significant amount of particulate matter was absent from the blended feedwater as defined by silt density index and turbidity measurements. However, water quality results suggested that the presence of sulfate, sulfide, iron, anaerobic bacteria, and humic acid organics likely contributed to the formation of pyrite observed on some of the membrane surfaces autopsied at the conclusion of pilot operations. It was determined that first-stage membrane productivity was impacted by the location of cartridge filter pretreatment; however, second-stage productivity was maintained with no observed flux decline during the entire pilot operation’s timeline. Study results indicated that the operation of an RO process treating a blend of an NF concentrate and brackish groundwater could maintain a sustainable and productive operation that provided a practical minimum liquid discharge process operation for the NF concentrate, while the dilution of RO feedwater salinity would lower overall production costs. Full article
(This article belongs to the Special Issue Current Research into Membranes in Water Desalination Technology and Engineering)
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