Special Issue "Aquatic Ecosafety: Threats, Disturbances, Environmental Monitors and Bioremediation Actions"

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Aquatic Systems—Quality and Contamination".

Deadline for manuscript submissions: 20 August 2020.

Special Issue Editors

Prof. Salvatore Fasulo
Website
Guest Editor
Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d’Alcontres 31, S. Agata, 98166 Messina, Italy
Interests: NMR; metabolomics; disease; heavy metals; aquatic toxicology; biomarkers; mussels; aquatic invertebrates; ecocytotoxicology; petrochemical pollution; bioremediation
Prof. Giuseppe Mancini
Website
Guest Editor
Department of Electric, Electronic and Computer Engineering, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
Interests: Chemical plants design; Waste management and treatment; wastewater treatment; wastewater reuse; sediments and soil remediation; environmental modelling; marine protection; sustainability; Industrial Symbiosis; holistic approach; multidisciplinary monitoring and modelling; energy recovery
Prof. Massimiliano Scalici
Website
Guest Editor
Department of Sciences, University “Roma Tre”, Viale Guglielmo Marconi, 00154 Roma, Italy
Interests: hydrobiology; early warning system detecting; biomonitors; environmental quality status assessment; environmental risk evaluation; ecotoxicology; alien species; microplastics; aquatic conservation; water resource management

Special Issue Information

Dear Colleagues,

Climate change, water scarcity and pollution, biodiversity loss, chemical contamination and plastics pollutions represent nowadays the main five issues of environmental concern requiring both continuous/improved control and urgent management/remediation actions. In this regard, the use of biological systems in environmental monitoring is highly encouraged as it offers clear advantages such as 1) allowing the estimation of the integrated effects of different contaminants, 2) permitting to assess the long-term effects of peaks of disturb that are not easily detected by occasional or intermittent monitoring approaches (e.g., water quality analysis) and 3) detecting side-effects of remediation actions that are “traditionally” designed through chemical quality targets (e.g., metals concentration in sediments). The role of organisms in assessing the status of aquatic habitats is clearly recognized in the legislation. Under the drive of European Water Framework Directive 2000/60 (WFD) numerous research have been encouraged in recent years on biomonitors, based on multiple taxonomic groups and/or multiple markers, which allowed to collect direct information on the ecological status of aquatic systems as well as on the potential risks for humans’ health. Within this context, contributions integrating different monitoring approaches and actions will be welcome to provide new insights on how molecules, individuals, populations, communities and ecosystems respond to multiple stressors over the time. This special issue also aims to propose some innovative and integrated methods to assess the overall efficiency of protection/remediation actions for both ecosystem and human health safeguard. This Special Issue welcomes the submission of papers reporting frontier results in identifying, detecting, monitoring, controlling and preventing the effects of different threats and disturbs to aquatic ecosystems. Scientific, technical and management papers are also well considered for publication in this Special Issue.

Prof. Salvatore Fasulo
Prof. Giuseppe Mancini
Prof. Massimiliano Scalici
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. Water 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 1800 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

  • aquatic threats
  • human disturbs
  • early warning systems
  • multilevel monitor approach
  • integrated biological responses
  • environmental risk assessment
  • aquatic living resource management and conservation
  • biological pollution
  • bioremediation
  • pollution prevention
  • remediation
  • sediments
  • wastewater
  • waste
  • toxic substances
  • wastewater treatment
  • xenobiotics

Published Papers (1 paper)

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Research

Open AccessArticle
Optimal In-Stream Structure Design through Considering Nitrogen Removal in Hyporheic Zone
Water 2020, 12(5), 1399; https://doi.org/10.3390/w12051399 - 14 May 2020
Abstract
The hyporheic zone (HZ), the region beneath or alongside a streambed, can play a vital role in a stream ecosystem. Previous studies have examined the impacts of in-stream structures on the HZ and river restoration; however, studies on optimizing the design of in-stream [...] Read more.
The hyporheic zone (HZ), the region beneath or alongside a streambed, can play a vital role in a stream ecosystem. Previous studies have examined the impacts of in-stream structures on the HZ and river restoration; however, studies on optimizing the design of in-stream structures are still lacking. Therefore, this study aims to propose a method for optimizing the design of in-stream structures (e.g., weirs) through comprehensively considering both nitrogen removal amount (NRA) and nitrogen removal ratio (NRR) in the HZ based on numerical modelling. The Hydrologic Engineering Center’s River Analysis System (HEC-RAS) and COMSOL Multiphysics are employed for surface water and hyporheic flow simulations, respectively, and these two models are coupled by the hydraulic head along the surface of the streambed. The NRA and NRR are both closely related with residence time (RT), while the NRA is also influenced by hyporheic flux. Using the model outputs under different scenarios, regression equations for estimating the relevant variables (e.g., the maximum upstream distance in the subsurface flow influenced by the weir, the RT, and the hyporheic flux) are proposed. Then, the cumulative NRA (CNRA) and NRR can be calculated, and an objective function is formulated as the product of the normalized CNRA and NRR. The results show that the optimal height of the weir can be obtained based on the proposed method, and the validation shows the good general performance of this method. Sensitivity analysis indicates that the optimal height generally can be sensitive to the river discharge, i.e., the optimal height increases when the river discharge increases and vice versa. In addition, it is observed that, in the case of the optimal height, hyporheic flux increases when the slope increases while the influence of depth to bedrock on hyporheic flux is not significant. This study enhances our understanding of the optimal in-stream structure design, and potentially benefits river restoration in the face of continual degradation caused by human activities. Full article
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