Special Issue "Environmental and Water Resources Engineering"

A special issue of Environments (ISSN 2076-3298).

Deadline for manuscript submissions: 31 March 2019

Special Issue Editors

Guest Editor
Prof. Dr. Hsin Chu

National Cheng Kung University, Department of Environmental Engineering, Tainan, Taiwan
Website | E-Mail
Interests: NOx/SOx control; H2S/COS/HCl control; catalytic/photo-catalytic conversion of vocs; co2 mitigation; chemical looping combustion; indoor air quality and control; hazardous air pollutants sampling and analysis; nanotechnologies; microalgae bio-energy; energy engineering/combustion; resource reuse; wastewater treatment
Guest Editor
Dr. Hsin-Ta Hsueh

National Cheng Kung University, Sustainable Environment Research Laboratories, Tainan, Taiwan
Website | E-Mail
Interests: microalgae engineering; air pollution control; environmental data mining and management

Special Issue Information

Dear Colleagues,

This is a joint Special Issue with the 2018 International Conference on Environmental and Water Resources Engineering (EWRE 2018, 12–14 October, Jeju Island, Korea). It will feature original research, application papers and review papers on the theory, design and implementation of environmental and water resources engineering, etc. Topics include but not limited to: environmental science and technology; environmental dynamics; global environmental change and ecosystems management; climate and climatic changes; global warming; environmental restoration and ecological engineering; wetlands; ground water remediation; environmental sustainability; environmental systems approach; sustainable cities; green energy; health and the environment; water resources systems; climate change impacts on hydrology and water resources; monitoring, remediation, assessment and protection of water resources; planning and management of water resources and water provision; watershed hydrology; water quality assessment; water environment protection; sustainable use of water resources; unsustainable patterns of water consumption and use; water demand and consumption; water recycling and reuse; fresh water security; ground water monitoring and modeling; urban water; and water and environment.

The authors of a number of selected full papers of high quality will be invited after the conference to submit revised and extended versions of their originally-accepted conference papers to this Special Issue of Environments, published by MDPI, in open access. Each submission to this Special Issue should contain new material, e.g., in the form of technical extensions, more in-depth evaluations, or additional use cases. These extended submissions will undergo a peer-review process according to the journal’s rules of action. At least two technical committees will act as reviewers for each extended article submitted to this Special Issue; if needed, additional external reviewers will be invited to guarantee a high-quality reviewing process.

Prof. Hsin Chu
Dr. Hsin-Ta Hsueh
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 papers will be 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. Environments 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 300 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.


  • environmental science and technology
  • environmental dynamics
  • global environmental change and ecosystems management
  • climate and climatic changes
  • global warming
  • environmental restoration and ecological engineering
  • wetlands
  • ground water remediation
  • environmental sustainability
  • environmental systems approach
  • sustainable cities
  • green energy
  • health and the environment
  • water resources systems
  • climate change impacts on hydrology and water resources
  • monitoring, remediation, assessment and protection of water resources
  • planning and management of water resources and water provision
  • watershed hydrology
  • water quality assessment
  • water environment protection
  • sustainable use of water resources
  • unsustainable patterns of water consumption and use
  • water demand and consumption
  • water recycling and reuse
  • fresh water security
  • ground water monitoring & modeling
  • urban water
  • water and environment

Published Papers

This special issue is now open for submission, see below for planned papers.

Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Visible-Light Active Photocatalysis for Disinfection of Water and Wastewater: A Review
Ashraya Upadhyaya and Guillermo J. Rincón *
Department of Civil and Environmental Engineering, University of New Orleans; [email protected]
Abstract: The sanitary and environmental challenges posed by an ever growing economically and geographically diverse human population include the need for sustainable, inexpensive, scalable, and decentralized water and wastewater treatment technologies that can supplement or replace conventional treatment methods. These challenges are met by photocatalysis, specially if the process is driven by visible light energy. Visible light active (VLA) photocatalysis, as discussed in this paper, can be effectively used for disinfection of not only drinking water, but also of treated wastewater effluents. VLA photocatalysis, as opposed to traditional energy-intensive and chemically driven disinfection methods such as ozonation, UV irradiation and chlorination, has the potential for achieving high disinfection efficiency with low energy consumption and no harmful by-products. This technology produces in-situ reactive oxygen species (ROS) such as H2O2, OH• and O2•−, without the need for chemical products addition. In turn, ROS are capable of penetrating cell walls and membranes of microorganisms, effectively inactivating them. Although multiple types of VLA photocatalysts have been used experimentally for disinfection of water and wastewater, Ag-doped photocatalysts have gained the most interest due to the intrinsic antimicrobial properties of Ag, which acts synergistically to increase the disinfection potential of the photocatalytic process. This paper presents a thorough review of the different types of VLA photocatalysts used in water disinfection, their synthesis procedures and disinfection mechanisms, and also discusses innovative approaches to overcome a major hurdle in photocatalysis, that is, the rapid recombination of the electron and hole pair by adding specific dopants into the photocatalysts structure.
Keywords: Photocatalysis, Photocatalytic Disinfection, Visible Light Active (VLA) Photocatalysis, Reactive Oxidative Species (ROS)

Title: Assessing the temporal extent of climatic variability in the Upper Middle Catchment of the Olifants River basin, using the CORDEX-Africa climate change simulations
German Nkhonjera *
Department of Civil Engineering Technology, University of Johannesburg; [email protected]
Abstract: With the Olifants River basin being such an economically and strategically important basin for the national economy of South Africa, understanding the implications of climate variability for both the near and distant futures in the basin has become more important than ever. The regional climate downscaled (RCD) data from the CORDEX – Africa project was applied to determine the extent of the climate variability in the Upper Middle Catchment (UMC) of the basin. The data was applied based on two scenarios, RCP4.5 and RCP8.5. For both scenarios, and with respect to the historical average temperatures, the temperature rise projection in the UMC will remain below 2oC up to the near future. However, beyond the near future, the increment in temperatures for both scenarios becomes more pronounced than previously reported. For the UMC, there is a general trend towards more increased warming in spring seasons (months of September, October and November) than any other seasons in the area but the increase, according to this study, tend to be less pronounced in autumn for the RCP4.5 scenario as compared to RCP8.5 scenario. The results showed no significant precipitation variability through the mid-century (2021 – 2050) up to the end of the 21st Century. However, monthly as well as seasonal precipitations in the UMC have shown a wider variability in spring and summer months compared to autumn and winter seasons. These variations are more pronounced for the RCP4.5 scenario as compared to RCP8.5 scenario. The general reduction in future seasonal precipitation especially in the mid-term period (as predicted under RCP8.5) combined with the increasing temperatures in the UMC may exacerbate the drying conditions and reduction in streamflow of the main river (Olifants) and its tributaries in the upper middle catchment of the Olifants River basin, consequently having a negative impact on the economic activities (such as mining, irrigation, and power stations for energy production in the basin.
Keywords: Climate change, Olifants River basin, climate variability, Africa


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