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Spatiotemporal Variability, Identification, and Control Technologies of Pollutants in Surface Water

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

Deadline for manuscript submissions: closed (25 August 2024) | Viewed by 719

Special Issue Editors


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Guest Editor
College of Environment and Resources, Xiangtan University, Xiangtan, China
Interests: adsorption; advanced oxidation technology; coagulation; capacitive deionization; surface/interface chemistry; heterogeneous catalysts (metals); porous frameworks; POP degradation; value-added ion separation and purification

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Guest Editor
School of Ecology and Environment, Tibet University, Tibet, China
Interests: environmental chemistry; water quality assessment and pollution sources; risk assessment; geochemistry; source identification; environmental monitoring

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Guest Editor
College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, China
Interests: stabilization mechanism and separation technique of heterogenous mixture; water pollution elimination; mass transportation in finite space; interface and surface

Special Issue Information

Dear Colleagues,

Surface water is an extremely important source of fresh water. The quality of this water body is thus an essential issue for people living in the river basin. The Tibetan Plateau is called the “Water Tower of Asia”, and more than one third of the world population lives in the downstream watersheds of the rivers flowing from the Plateau. Currently, there are growing public concerns about the impacts of climate change and the potential effects of rapid economic development on the availability and quality of the water. Moreover, due to its harsh weather conditions, high elevation, and low accessibility, limited studies have focused on pollutant distributions and control in the Plateau region. In this context, gaining an in-depth understanding of pollution assessments and source apportionments in surface water, especially in the Plateau area, is of great importance for proposing suitable strategies of local pollution control and ecological recovery. To the best of our knowledge, much research has made significant breakthroughs and contributions to pollution evaluation and control technologies in the surface water community.

This Special Issue aims to highlight the recent advances on pollution assessments and source apportionments with a multiscale perspective on numerical and theoretical developments, along with corresponding pollution control techniques towards surface water in low-to-high-altitude areas.

Potential topics of interest include, but are not limited to:

- Spatiotemporal variability and identification of organic/inorganic pollutants in the surface water;

- Response of aquatic ecosystem health status to water environmental factors in surface water;

- Adsorbent development and corresponding structure–performance correlations regarding the removal and recycling of inorganic matter (e.g., salt, heavy metals, etc.);

- Heterogenous catalyst fabrication and catalytic mechanisms from atomic/molecular perspectives for organic pollutant degradation via advanced oxidation techniques.

Dr. Jian Shen
Prof. Dr. Xiang Huang
Dr. Peng Shi
Guest Editors

Manuscript Submission Information

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Keywords

  • pollution assessments
  • source apportionments
  • adsorption
  • advanced oxidation techniques
  • electro-capacitive deionization

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Published Papers (1 paper)

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Research

14 pages, 4700 KiB  
Article
Pollution Characteristics and Eutrophication Assessment in Plain River Network Areas: A Case Study of the Beijing–Hangzhou Grand Canal (Changzhou Section)
by Haizhen Hu, Gang Zhou, Sichen Tong and Tingting Hu
Water 2024, 16(23), 3353; https://doi.org/10.3390/w16233353 - 22 Nov 2024
Abstract
A comprehensive understanding of water-quality spatiotemporal variations is essential for the long-term management of aquatic environments. However, the absence of indicators that fully capture the extent of eutrophication, the lack of long-term water-quality monitoring data, and the complexity of water pollutants sources have [...] Read more.
A comprehensive understanding of water-quality spatiotemporal variations is essential for the long-term management of aquatic environments. However, the absence of indicators that fully capture the extent of eutrophication, the lack of long-term water-quality monitoring data, and the complexity of water pollutants sources have limited research on pollution characteristics and eutrophication assessments in plain river network areas. In this study, based on the monitoring data of water-quality indicators in the Beijing–Hangzhou Grand Canal (Changzhou section), the temporal and spatial distribution characteristics of nutrient salts, as well as the eutrophication status of the water body, were revealed by using the comprehensive trophic level index (TLI) method. Meanwhile, the main sources of water pollutants were defined, and targeted control measures were proposed. The results showed that water-quality deterioration is more pronounced during the non-flood season, with significantly higher concentrations of ammonia nitrogen (NH3-N) and total phosphorus (TP) compared to the flood season. Additionally, the analysis of the nitrogen-to-phosphorus (N:P) ratio suggested that some sampling sites exhibited phosphorus limitation. The eutrophication assessment indicated that most sections are eutrophic, with S8 and S2 being the most heavily polluted and at risk of cyanobacterial blooms. The primary sources of pollutants were identified as agricultural runoff, domestic sewage, and industrial discharges. To address these issues, it was recommended to reduce external pollution sources while focusing on internal control (1. Enhance the management of livestock and poultry farming; 2. Upgrade wastewater purification facilities; 3. Establish ecological protection zones along the riverbanks) and enhance aquatic ecosystem restoration. A coordinated and watershed-wide approach is crucial to improving water quality in this region. The findings of this study provide a scientific basis for the protection of the water environment and pollution control in plain river network areas. Full article
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