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Processes
Special Issues
Energy and Water Treatment Processes
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Energy and Water Treatment Processes

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Energy Systems".

Deadline for manuscript submissions: 31 October 2024 | Viewed by 2133

Special Issue Editors

Prof. Dr. Ying Xu

E-Mail Website
Guest Editor
School of Ecology and Environment, Zhengzhou University, 100 Science Street, Zhengzhou 450001, China
Interests: membrane; solar evaporation; wastewater treatment
Special Issues, Collections and Topics in MDPI journals
Dr. Lei Shi

E-Mail Website
Guest Editor
School of Energy Science and Engineering, Central South University, 932 Lushan Street, Changsha 410083, China
Interests: heat transfer; nanofluids; hydrogen production; photo-thermal conversion
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Zhengguang He

E-Mail Website
Guest Editor
School of Ecology and Environment, Zhengzhou University, 100 Science Street, Zhengzhou 450001, China
Interests: water treatment and supply; environment functional materials

Special Issue Information

Dear Colleagues,

Due to increasingly scarce freshwater resources, there is now an urgent demand for technology development to tap into unconventional water sources (such as seawater, brackish water, and industrial wastewater) beyond the natural hydrological cycle to augment the water supply. At the same time, fossil fuel-based energy sources are running out. Therefore, using clean and green energy to treat unconventional water sources can both save energy and increase resource reserves. Recently, a number of technologies showing performance improvements in water treatment processes by using sustainable energy sources, such as solar desalination, membrane distillation, and solar sterilization, have been developed.

This Special Issue on “Energy and Water Treatment Processes” seeks high-quality works focusing on the latest novel advances in water treatment technologies, especially using green energy as an energy resource. Topics include, but are not limited to:

  • Porous or membrane-based environment functional material fabrication and performance application;
  • Green energy applied during preparation processes;
  • Green energy applied during treatment processes;
  • Novel wastewater treatment or seawater desalination technologies.

Prof. Dr. Ying Xu
Dr. Lei Shi
Prof. Dr. Zhengguang He
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. Processes 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 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

  • green energy
  • seawater desalination
  • wastewater treatment
  • solar distillation
  • photothermal materials
  • environment functional materials

Published Papers (2 papers)

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Research

11 pages, 2730 KiB  
Article
Low-Energy-Consumption Wastewater Evaporation Using Single-Electrode High-Voltage Electric Field Enhancement
by Haiting Liu, Zhiming Xu and Junqi Zhang
Processes 2023, 11(12), 3400; https://doi.org/10.3390/pr11123400 - 10 Dec 2023
Viewed by 862
Abstract
High energy consumption is a pressing issue in the development of wastewater evaporation technologies. In this paper, a low-energy-consumption approach utilizing single-electrode high-voltage electric field-enhanced evaporation is proposed. Experimental studies were conducted on the evaporation process of adhered liquid droplets in a single-electrode [...] Read more.
High energy consumption is a pressing issue in the development of wastewater evaporation technologies. In this paper, a low-energy-consumption approach utilizing single-electrode high-voltage electric field-enhanced evaporation is proposed. Experimental studies were conducted on the evaporation process of adhered liquid droplets in a single-electrode high-voltage electric field environment. The influence of the electric field on the liquid surface morphology and evaporation modes was analyzed, and the effects of droplet salt concentration, ambient temperature, and voltage on droplet evaporation were investigated. The results indicate that the evaporation enhancement effect of a high-voltage single electrode on droplets mainly occurs when the gas–liquid interface of droplets is unstable. At a voltage of 8 kV, evaporation occurs on the droplet surface, reducing the evaporation time by 5.3% compared to no-electric-field conditions. Furthermore, the effect of the single-electrode high-voltage electric field on droplet evaporation weakens with increasing temperature and salt concentration. Full article
(This article belongs to the Special Issue Energy and Water Treatment Processes)
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16 pages, 6730 KiB  
Article
Numerical Investigations of Heat Transfer and Fluid Flow Characteristics in Microchannels with Bionic Fish-Shaped Ribs
by Quanyue Gao, Haibo Zou and Juan Li
Processes 2023, 11(6), 1861; https://doi.org/10.3390/pr11061861 - 20 Jun 2023
Viewed by 943
Abstract
Microchannel cooling technology is an effective method to solve local thermal stacking. In this paper, four innovative microchannels with bionic fish-shaped rib arrangements (CM-O, CM-R, CM-H, and CM-G) are designed by imitating geese and fish clusters. The heat transfer and flow characteristics of [...] Read more.
Microchannel cooling technology is an effective method to solve local thermal stacking. In this paper, four innovative microchannels with bionic fish-shaped rib arrangements (CM-O, CM-R, CM-H, and CM-G) are designed by imitating geese and fish clusters. The heat transfer and flow characteristics of the microchannels are simulated numerically at different Reynold’s numbers (Re = 200 − 1600). The liquid water temperature and flow field in the four innovative microchannels with bionic ribs are analyzed. The results show that the ribs’ arrangement has an influence on the thermal performance of microchannels. Compared to the smooth microchannel (CM), the of the Nu microchannels with the bionic fish-shaped ribs increases by 33.00–53.26% while the fave increases by 28.63–34.93% at Re = 1200. The vortices around the ribs are clearly observed which improves the temperature gradient. The performance evaluation criterion (PEC) of CM-H is higher than that of the others. This indicates that the rib arrangement of CM-H is superior for heat dissipation application. Full article
(This article belongs to the Special Issue Energy and Water Treatment Processes)
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