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Water
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Microorganisms: Risk Assessment, Fate and Treatment of Aquatic Emerging Contaminants
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Microorganisms: Risk Assessment, Fate and Treatment of Aquatic Emerging Contaminants

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

Deadline for manuscript submissions: 25 July 2024 | Viewed by 1183

Special Issue Editors

Dr. Xiaochen Huang

E-Mail Website
Guest Editor
School of Agriculture, Sun Yat-Sen University, Shenzhen 518107, China
Interests: nanotoxicity; phytotoxicity; phytoremediation; nanotechnology; biochar; nanopollutants; algae
Dr. Peng Xie

E-Mail Website
Guest Editor Assistant
Department of Environmental Science and Engineering, Harbin Institute of Technology, Harbin, China
Interests: wastewater biological treatment; microalgae–bacteria interactions; desulfurization and denitrification; PPCP degradation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The scope of this Special Issue will focus on Microorganisms: Risk Assessment, Fate and Treatment of Aquatic Emerging Contaminants. The purpose of this Special Issue is to gather and present a collection of scholarly articles that delve into various aspects of the chosen topic, contributing to the existing literature and advancing technology in this field.

The overall focus of this Special Issue is to explore the risk and treatment technology of aquatic emerging contaminants using microorganisms including algae, bacteria and microalgal–bacterial consortia. Aquatic emerging contaminants may include but are not limited to pollutants, toxins, pharmaceuticals, personal care products, nanomaterials, micro- and nano-plastics, and other chemical substances that have recently been recognized as potential threats to aquatic environments.

The purpose of this Special Issue is to compile cutting-edge research that investigates the impacts of aquatic emerging contaminants on microorganisms, such as physiological and biochemical changes, community dynamics, ecological consequences, and mitigation strategies. In addition, aspects related to the treatment of aquatic emerging contaminants using microorganisms are also encouraged. This Special Issue seeks novel insights in this field and strives to contribute to the development of effective management practices and environmental sustainability. We welcome original research studies, review articles, case studies, and theoretical perspectives.

Dr. Xiaochen Huang
Guest Editor

Dr. Peng Xie
Guest Editor Assistant

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

  • algae
  • bacteria
  • microalgal–bacterial consortia
  • wastewater treatment
  • emerging contaminants
  • risk assessment
  • aquatic ecosystem
  • fate
  • toxicity

Published Papers (2 papers)

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Research

14 pages, 2013 KiB  
Article
Relative Contribution of Fungal Communities to Carbon Loss and Humification Process in Algal Sludge Aerobic Composting
by Hainan Wu, Sen Zhang, Jiahui Zhou, Haibing Cong, Shaoyuan Feng and Feng Sun
Water 2024, 16(8), 1084; https://doi.org/10.3390/w16081084 - 10 Apr 2024
Viewed by 384
Abstract
Harmful algal blooms in eutrophic lakes pose significant challenges to the aquatic environment. Aerobic composting is an effectively method for processing and reusing dewatered algal sludge. The fungal communities are the main driver of composting. However, their relationship with carbon loss and the [...] Read more.
Harmful algal blooms in eutrophic lakes pose significant challenges to the aquatic environment. Aerobic composting is an effectively method for processing and reusing dewatered algal sludge. The fungal communities are the main driver of composting. However, their relationship with carbon loss and the humification process during algal sludge composting remains unclear. In this study, the succession of fungal communities in algal sludge composting was investigated via internal transcribed spacer (ITS) rRNA amplicon sequencing analysis. Overall, no significant differences were observed with the α-diversity of fungal communities at different stages. The composition of the fungal communities changed significantly before and after compost maturation and became more stable after the compost maturation. Redundancy analysis showed that the fungal communities were significantly correlated with physicochemical properties, including humic acid (HA)/fulvic acid (FA), temperature, pH, humic acid, microcystins, and CO2. The co-occurrence network showed that different fungal community modules had different relationships with physicochemical properties. Structural equation modeling further revealed that different metabolic or transformation processes may be mainly driven by different fungi modules. The microcystin degradation, carbon loss, and humification during composting were mainly mediated by fungal communities which were mainly influenced by temperature. Humification was influenced not only by fungal communities but also by the microcystin levels. These results show that changes in the fungal community composition and interaction and their relationship with physicochemical properties could represent a useful guide for optimizing the composting process. Full article
(This article belongs to the Special Issue Microorganisms: Risk Assessment, Fate and Treatment of Aquatic Emerging Contaminants)
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15 pages, 4180 KiB  
Article
Research on the Ecological Restoration Effects of a Vallisneria natans (Lour.) Hara-Dominated Multitrophic Level Ecosystem
by Bin Li, Zheng Han, Ruitong Jiang, Qingjie Cai, Meiqiong Zhang, Rong Wang, Yuchao Liu, Liu Shao, Meiqin Wu, Jianheng Zhang, Wenhui He, Jinlin Liu and Peimin He
Water 2024, 16(7), 1050; https://doi.org/10.3390/w16071050 - 05 Apr 2024
Viewed by 582
Abstract
This study aims to assess the ecological restoration effects of Vallisneria natans in a multitrophic level ecosystem. The water-purification effects of two hierarchical configuration modes of V. natans-Bellamya aeruginosa and V. natans-B. aeruginosa-Hyriopsis cumingii were studied. Results show that a V. natans and B. [...] Read more.
This study aims to assess the ecological restoration effects of Vallisneria natans in a multitrophic level ecosystem. The water-purification effects of two hierarchical configuration modes of V. natans-Bellamya aeruginosa and V. natans-B. aeruginosa-Hyriopsis cumingii were studied. Results show that a V. natans and B. aeruginosa configuration ratio of 15:2 stabilizes water quality at Grade IV (TN ≤ 1.5 mg/L, TP ≤ 0.3 mg/L), and increasing B. aeruginosa density significantly reduces total phosphorus. The V. natans, B. aeruginosa, and H. cumingii configuration at 15:2:10 stabilizes water at Grade III (TN ≤ 1.0 mg/L, TP ≤ 0.2 mg/L), with a positive correlation between H. cumingii density and chlorophyll-a removal. Furthermore, the filtration and biocycling actions of B. aeruginosa (snails) and H. cumingii (mussels) significantly reduce levels of Total Nitrogen (TN), Total Phosphorus (TP), and Ammonium (NH4+-N) in water, thus enhancing the self-purification capacity of the water bodies. However, the bioturbation effect of H. cumingii can temporarily increase phosphorus release from sediments, leading to a short-term rise in TP concentration in the water. Overall, the study concludes that multitrophic level ecosystems are effective in purifying water quality and offer significant ecological restoration benefits. This research provides crucial data support for future construction and ecological restoration projects involving multitrophic level approaches in China’s rivers and lakes. Full article
(This article belongs to the Special Issue Microorganisms: Risk Assessment, Fate and Treatment of Aquatic Emerging Contaminants)
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