Advanced Desalination Technologies for Water 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 July 2024 | Viewed by 3316

Special Issue Editors


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Guest Editor
Water Department, Canary Islands Institute of Technology (ITC), Santa Lucía, Spain
Interests: water treatment; desalination; energy efficiency; renewable energies; membrane processes; brine mining; emerging technologies for water treatment; circular economy; water-energy nexus

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Guest Editor
Department of Process Engineering, Industrial and Civil Engineering School, University of Las Palmas de Gran Canaria, Campus de Tafira s/n, 35017 Las Palmas de Gran Canaria, Spain
Interests: sustainability and environmental; water treatment; desalination; emerging technologies for water treatment; circular economy; water-energy nexus
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Special Issue Information

Dear Colleagues,

Water desalination has become an essential industrial sector on our planet. Desalination technologies, such as reverse osmosis, are nowadays a world reference regarding water production dealing with the ever-increasing water demand for different uses: urban, industrial, tourism or agricultural. However, far from being a completely optimised technology, the technical and scientific communities dedicate their efforts to improve the process towards perfection or to propose desalination alternatives with the aim of reducing: the energy requirement, environmental risks or the capital and/or operational costs.

WATER- MDPI, in collaboration with DESAL+ LIVING LAB platform (https://www.desalinationlab.com/), promote the special issue “Advanced Desalination Technologies for Water Treatment”. This Special Issue targets high quality papers focusing on new research proposals or the development and improvement of existing ones, including innovative case study applications that address one o more of the following topics include but are not limited to:

  • Emerging desalination and non-conventional water production technologies
  • Novel hybrid desalination systems
  • Advanced materials for water desalination
  • Pilot plants and advanced systems
  • Desalinated water- energy nexus
  • Sustainable desalinated water
  • Brine concentration

Dr. Baltasar Peñate Suárez
Dr. Noemi Melián Martel
Guest Editors

Manuscript Submission Information

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Keywords

  • emerging desalination
  • newer desalination technologies
  • high salinity
  • brine concentration
  • membrane distillation
  • hybrid desalination
  • freeze desalination
  • capacitive deionization
  • nanomaterials
  • low enviromental risks
  • lowest energy consumption

Published Papers (3 papers)

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Research

20 pages, 836 KiB  
Article
Definition of Exergetic Efficiency in the Main and Emerging Thermal Desalination Technologies: A Proposal
by Nenna Arakcheeva El Kori, Ana M. Blanco-Marigorta and Noemi Melián Martel
Water 2024, 16(9), 1254; https://doi.org/10.3390/w16091254 - 27 Apr 2024
Viewed by 494
Abstract
Increasing attention is being given to reduce the specific energy consumption in desalination processes, which translates into greater use of exergy analysis. An exergetic analysis provides relevant information related to the influence of the efficiency of a single component in the global plant [...] Read more.
Increasing attention is being given to reduce the specific energy consumption in desalination processes, which translates into greater use of exergy analysis. An exergetic analysis provides relevant information related to the influence of the efficiency of a single component in the global plant performance and in the exergy cost of the product. Therefore, an exergy analysis identifies the main improvement potentials in a productive thermodynamic process. Related to desalination technologies, many previous papers deal with the calculation of the parameters involved in the exergy analysis, the exergetic efficiency of different processes, plants, and technologies among them. However, different approaches for formulating the exergetic efficiency have been suggested in the literature, often without sufficient understanding and consistency. In this work, these formulations, applied to the main desalination components and processes, are compared and critically reviewed. Two definitions of exergy efficiency are applied to the desalination components of the three main thermal desalination processes (multieffect distillation–thermal vapour compression, multistage flash distillation, and direct-contact membrane distillation). The results obtained for the exergy efficiency of the MED-TVC, MSF, and DCMD processes for the input–output approach are 21.35%, 17.08%, and 1.28%, respectively, compared to the consumed–produced approach that presented 3.1%, 1.58%, and 0.37%, respectively. The consumed–produced approach seems to better fit the thermodynamic behaviour of thermal desalination systems. Full article
(This article belongs to the Special Issue Advanced Desalination Technologies for Water Treatment)
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14 pages, 1800 KiB  
Article
Cost Studies of Reverse Osmosis Desalination Plants in the Range of 23,000–33,000 m3/day
by J. Feo-García, A. Pulido-Alonso, A. Florido-Betancor and N. R. Florido-Suárez
Water 2024, 16(6), 910; https://doi.org/10.3390/w16060910 - 21 Mar 2024
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Abstract
The analysis of energy consumption in reverse osmosis desalination plants is the most important and relevant factor to study, because this parameter indicates the level of efficiency and competitiveness of the plant. The direct consequence of the high specific energy consumption (SEC) of [...] Read more.
The analysis of energy consumption in reverse osmosis desalination plants is the most important and relevant factor to study, because this parameter indicates the level of efficiency and competitiveness of the plant. The direct consequence of the high specific energy consumption (SEC) of a desalination plant in the production of water is one of the main obstacles to the exponential expansion of this technology worldwide. The methodological procedure used to carry out the work is based on the analysis of energy consumption, maintenance costs, staff, membranes, and reagents of three desalination plants with a production of more than 23,000 m3/day located in the Canary Islands (Spain); all data are obtained from real analyses collected “in situ” from 2015 to 2018. One of the main objectives of the current research on desalination plants is to reduce the SEC of seawater desalination plants (SWRO), incorporating energy recovery systems (ERS) and high efficiency pumps (HEP), and to implement different operational configurations with the aim of minimizing the energy requirements necessary to obtain a good product quality at minimum production cost. Full article
(This article belongs to the Special Issue Advanced Desalination Technologies for Water Treatment)
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20 pages, 5023 KiB  
Article
A Case Study of a Reverse Osmosis Based Pumped Energy Storage Plant in Canary Islands
by Juan Carlos Lozano Medina, Carlos Alberto Mendieta Pino, Alejandro Ramos Martín and Federico León Zerpa
Water 2024, 16(4), 515; https://doi.org/10.3390/w16040515 - 6 Feb 2024
Viewed by 925
Abstract
Gran Canaria, due to its status as an island, has an isolated energy system (IES). This has made it dependent on itself for energy production, which is basically obtained from: (a) Wind and solar energy, which equals 19% of the total energy produced, [...] Read more.
Gran Canaria, due to its status as an island, has an isolated energy system (IES). This has made it dependent on itself for energy production, which is basically obtained from: (a) Wind and solar energy, which equals 19% of the total energy produced, (b) Energy obtained from the burning of fossil fuels in the energy production equipment of the existing thermal power stations, which equals 81% of the total energy produced. A solution must be found to the current production system, which is already partially obsolete and is due for renewal and/or decommissioning, in order to avoid “Energy Zero”, which means a change in the production cycle. In addition, the incorporation of a pumped hydroelectric energy storage plant “Chira-Soria” into the Gran Canaria electricity system represents another, even more important, change in the dynamics followed up to now. Basically, this plant, which is hydraulically stabilized by means of a seawater desalination plant, incorporates energy storage by storing water at high altitude to be turbined under appropriate conditions. The new situation will be analyzed with this incorporation and the option of an integrated operation in the overall energy system of Gran Canaria will be considered. Full article
(This article belongs to the Special Issue Advanced Desalination Technologies for Water Treatment)
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