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Sustainable Treatment for Emerging Contaminations in Offshore Aquaculture Tailwater

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Water, Agriculture and Aquaculture".

Deadline for manuscript submissions: 20 May 2026 | Viewed by 1052

Special Issue Editors

School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China
Interests: green advanced oxidation/reduction technologies; emerging contaminants; sustainable advanced treatment for wastewater/drinking water; heavy metal wastewater treatment; urban water systems evaluation; membrane water treatment
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Guest Editor
School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, China
Interests: functional materials for water treatment; advanced oxidation technologies; advanced treatment for wastewater/drinking water; heavy metal wastewater treatment; sludge conditioning

Special Issue Information

Dear Colleagues,

Offshore aquaculture's explosive growth has improved the public food chain while also unavoidably adding emerging contaminations (ECs) to the environment. These include unmetabolized antibiotics, antifoulants, disinfectants, and micro(nano)plastic, which originate from feed, therapeutics, and biocides. The release of these ECs into adjacent ecosystems poses a substantial threat, contributing to the development of antimicrobial resistance, causing toxicological effects on nontarget aquatic organisms, and disrupting local ecological balance. Consequently, the use of sustainable technologies for the treatment of ECs in offshore aquaculture tailwater is more crucial than ever in coastal marine ecosystems.

Addressing the issues of ECs requires the effective control of contaminants discharged into coastal marine ecosystems. The development of advanced oxidation/reduction processes (AOPs/ARPs) for water purification presents a promising solution to mitigate ECs in coastal marine ecosystems. In recent years, numerous reports have focused on designing novel AOPs/ARPs to achieve high-efficiency pollutant removal at low costs. However, current technologies still face limitations in terms of treating diverse pollutants, and their decontamination efficiency and cost-effectiveness require further improvement.

Therefore, this Special Issue of Water invites submissions of original research and critical reviews that address the fundamental science and applied technologies of ECs in offshore aquaculture tailwater.

Dr. Wei Song
Dr. Bingzhi Liu
Guest Editors

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Keywords

  • emerging contaminations
  • offshore aquaculture tailwater
  • aquaculture effluent
  • ECs treatment technology
  • waste resource utilization

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Published Papers (1 paper)

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Research

17 pages, 15732 KB  
Article
Pre-Filter Regulation Strategies and Deactivation Mechanisms of Filter Media in Water Treatment
by Chaochang Jiang, Xiaowei Lei, Renpeng Zhou, Bingzhi Liu, Junxia Liu, Wei Song and Zhihong Wang
Water 2026, 18(1), 127; https://doi.org/10.3390/w18010127 - 5 Jan 2026
Viewed by 744
Abstract
In the context of micro-polluted water sources, the performance decline of filtration units is a major challenge for the operational management of water supply plants. Therefore, it is necessary to systematically analyze the mechanism underlying the decline in filter media activity and optimize [...] Read more.
In the context of micro-polluted water sources, the performance decline of filtration units is a major challenge for the operational management of water supply plants. Therefore, it is necessary to systematically analyze the mechanism underlying the decline in filter media activity and optimize the pre-filtration treatment. This study focuses on waterworks, aiming to enhance filtration performance through filter media modification and a combined coagulant-oxidant strategy. A key innovation of this work is the development of a macro-microscopic correlation evaluation system. The results showed that the modified filter media increased the turbidity removal rate by 10.48% compared to the unmodified media. Furthermore, the combined coagulation–pre-oxidation scheme increased the removal rates for turbidity and UV254 by 3.24% and 19.03%, respectively, compared to the single-process scheme. Combined with filter media characterization results, the deactivation mechanism of filter media can be inferred. During the high-algae period, microorganisms on the filter media generate anaerobic Extracellular Polymeric Substances (EPS), which form a biofilm with bacteria and adhere to the filter media. The viscous matrix of these EPS then encapsulates inorganic substances, resulting in hard-to-remove clumps. These clumps clog pores and hinder the adsorption of subsequent pollutants, ultimately leading to continuous deterioration in filter media performance until failure. Full article
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