Integrated Approaches of the Water Use Cycle: Technical and Environmental Challenges for Sustainability

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water Use and Scarcity".

Deadline for manuscript submissions: closed (31 May 2020) | Viewed by 9469

Special Issue Editors


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Guest Editor
Department of Environmental Engineering and Management, “Gheorghe Asachi” Technical University of Iasi, Iasi, Romania
Interests: waste management and valorization in the context of circular economy; advanced wastewater treatment processes for recycling and reuse; environmental and sustainability assessments by means of various instruments (life-cycle assessment, water footprint, carbon footprint, sustainability indicators, environmental integrated impact and risk assessment); integrated water resources management; environmental engineering
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Guest Editor
Department of Engineering for Environment, Land and Infrastructures (DIATI), Politecnico di Torino, Torino, Italy
Interests: sustainability assessments and instruments (life cycle assessments, carbon footprint, sustainability indicators); waste management (municipal solid waste, industrial waste, end-of-life vehicles, e-waste); anaerobic digestion; municipal and hazardous waste disposal; valorization of bottom ash; water and wastewater treatment; energy efficiency and GHG emissions of the urban water cycle
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We encourage you to submit papers for an important Special Issue of Water focused on the integrated approaches of the water use cycle and their technical and environmental challenges for sustainability. The water use cycle (consisting of water abstraction, treatment, distribution, use, wastewater collection, wastewater treatment and discharge/reuse) is a system with high complexity, influenced by many factors: water use and wastewater management practices, changes in the water quality caused by the temporal and spatial dynamics of water resource availability, and uncertainties due to extreme weather phenomena (floods, droughts), accidental pollution or climate change. The ultimate goal of this complex system is to manage in an integrated way the water resources in order to control all the potential hazards (environmental impacts and health risks) related to water use. The integrated approaches of environmental, technical, operational and management problems within the water use cycle may decrease the pressure upon the limited water resources and contribute to sustainable water use.

Papers for this Special Issue should consider innovative and integrated research into water treatment and distribution, wastewater treatment and the recycling/reuse of water or materials recovery in the sense of diminishing the environmental impacts and risks generated in the water use cycle. Additionally, papers might describe approaches that integrate technical novelty and sustainability assessment instruments, such as life cycle assessment, carbon footprint, water footprint, sustainability indicators, etc. Case studies that consider pilot or full scale applications of water/wastewater innovative technologies in the context of the circular economy and energy efficiency are suitable for this Special Issue.

Prof. Dr. Ing. Carmen Teodosiu
Prof. Dr. Silvia Fiore
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. 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

  • Water use cycle
  • Water treatment
  • Wastewater treatment
  • Sustainability assessments
  • Life cycle assessment
  • Carbon and water footprint
  • Environmental impacts and risks quantification
  • Resource recovery
  • Energy efficiency

Published Papers (2 papers)

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Research

19 pages, 6042 KiB  
Article
Photocatalytic Degradation of Ampicillin Using PLA/TiO2 Hybrid Nanofibers Coated on Different Types of Fiberglass
by Constantin Bobirică, Liliana Bobirică, Maria Râpă, Ecaterina Matei, Andra Mihaela Predescu and Cristina Orbeci
Water 2020, 12(1), 176; https://doi.org/10.3390/w12010176 - 08 Jan 2020
Cited by 25 | Viewed by 3760
Abstract
New photocatalytic membranes based on polylactic acid (PLA)/TiO2 hybrid nanofibers deposited on fiberglass supports were prepared and tested for the removal of ampicillin from aqueous solutions. The electrospinning technique was used to obtain hybrid nanofibers that were deposited on three types of [...] Read more.
New photocatalytic membranes based on polylactic acid (PLA)/TiO2 hybrid nanofibers deposited on fiberglass supports were prepared and tested for the removal of ampicillin from aqueous solutions. The electrospinning technique was used to obtain hybrid nanofibers that were deposited on three types of fiberglass with different structures, resulting in three distinct photocatalytic membranes namely fiberglass fabric plain woven-type membrane, fiberglass mat-type membrane, and fiberglass fabric one-fold edge-type membrane. The results of the photocatalytic tests showed that the highest efficiency of ampicillin removal from aqueous solution is obtained with the fiberglass fabric plain woven-type membrane. Although it has been shown that the rate of photocatalytic degradation of ampicillin is high, being practically eliminated within the first 30 min of photocatalysis, the degree of mineralization of the aqueous solution is low even after two hours of photocatalysis due to the degradation of PLA from the photocatalytic membrane. The instability of PLA in the reactive environment of the photocatalytic reactor, evidenced by morphological, mineralogical and spectroscopic analyzes as well as by kinetic studies, is closely related to the structure of the fiberglass membrane used as a support for PLA/TiO2 hybrid nanofibers. Full article
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13 pages, 984 KiB  
Article
Environmental and Energy Assessment of Municipal Wastewater Treatment Plants in Italy and Romania: A Comparative Study
by Daniela Fighir (Arsene), Carmen Teodosiu and Silvia Fiore
Water 2019, 11(8), 1611; https://doi.org/10.3390/w11081611 - 03 Aug 2019
Cited by 23 | Viewed by 5209
Abstract
Municipal wastewater treatment plants (MWWTPs) are essential infrastructures in any urban context, but they may be considered as a potential source of greenhouse gas (GHG) emissions and should be coherent with European Union (EU) policy on energy efficiency. This study presents a sustainability [...] Read more.
Municipal wastewater treatment plants (MWWTPs) are essential infrastructures in any urban context, but they may be considered as a potential source of greenhouse gas (GHG) emissions and should be coherent with European Union (EU) policy on energy efficiency. This study presents a sustainability evaluation of four Italian and Romanian MWWTPs in terms of energy efficiency and greenhouse gas emissions using Energy Performance and Carbon Emissions Assessment and Monitoring (ECAM) tool software. The obtained results indicated that biogas recovery improved energy performances, while the largest contributions in terms of GHG emissions were in all cases caused by energy consumption and methane produced during wastewater treatment. The Romanian plants exhibited higher GHG emissions, compared to the Italian plants, mainly because of the different values of national conversion factors for grid electricity (0.41 kg CO2/kWh for Italy and 1.07 kg CO2/kWh for Romania). Two scenarios aimed at enhancing the overall sustainability were hypothesized, based on increasing the serviced population or energy efficiency, achieving significant improvements. A sustainability assessment of MWWTPs should be adopted as a useful tool to help water utilities to introduce low-energy, low-carbon management practices as well as being useful for policy recommendations. Full article
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