Efficient elimination of Microcystis aeruginosa and MC-LR by expanded perlite supported F-TiO2 floating photocatalysts

Journal of Water Process Engineering, Год журнала: 2025, Номер 72, С. 107453 - 107453

Опубликована: Март 11, 2025

Язык: Английский

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Promoting the health of aquatic ecosystems in semi-closed estuaries: The indispensable function of constructed microtopography

Journal of Water Process Engineering, Год журнала: 2025, Номер 73, С. 107701 - 107701

Опубликована: Апрель 15, 2025

Язык: Английский

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Exploring the Mysteries of Nitrogen-Transforming Microorganisms: Investigating the Potential Role of Aerobic Denitrification in Nitrogen Cycling in Reservoir Water Sources

Environmental Science & Technology Letters, Год журнала: 2025, Номер unknown

Опубликована: Фев. 5, 2025

Язык: Английский

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Inferring Water Quality in the Songhua River Basin Using Random Forest Regression Based on Satellite Imagery and Geoinformation

Hydrology, Год журнала: 2025, Номер 12(3), С. 61 - 61

Опубликована: Март 17, 2025

Maintaining high water quality is essential not only for human survival but also social and ecological safety. In recent years, due to the influence of activities natural factors, has significantly deteriorated, effective monitoring urgently needed. Traditional requires substantial financial investment, whereas remote sensing random forest model reduces operational costs achieves a paradigm shift from discrete sampling points spatially continuous surveillance. The was adopted establish inversion three parameters (conductivity, total nitrogen (TN), phosphorus (TP)) during growing period (May September) 2020 2022 in Songhua River Basin (SRB), using Landsat 8 imagery China’s national section data. Model verification shows that R2 conductivity 0.67, followed by TN at 0.52 TP 0.47. results revealed downstream SRB (212.72 μS/cm) higher than upstream (161.62 μS/cm), with concentrations exhibiting similar increasing pattern. This study significant improving conservation health SRB.

Язык: Английский

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Nitrogen and phosphorus in water-sediment system of eutrophic lake amended with biochar-supported Effective Microorganisms: Temporal variation and remediation

Journal of Environmental Management, Год журнала: 2025, Номер 380, С. 124732 - 124732

Опубликована: Март 27, 2025

Язык: Английский

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Seasonal dynamics of soil ecosystems in the riparian zones of the Three Gorges Reservoir, China

Global Ecology and Conservation, Год журнала: 2024, Номер 54, С. e03174 - e03174

Опубликована: Сен. 2, 2024

Riparian soils, together with vegetation, play a crucial role in supporting biodiversity and driving biogeochemical processes within river ecosystems. Conservation of riparian soils artificial planting are essential for ecosystem recovery following land degradation. Researchers focus on examining soil nutrients, microbial biomass, organic acid metabolism the interactions between plants along riverbanks. However, seasonal responses to plantations have been infrequently reported existing literature. This study investigates influence variations conditions growth artificially planted species zones Three Gorges Dam Reservoir (TGDR) China. The sampled include Cynodon dactylon, Hemarthria altissima, Salix matsudana. These provide valuable insight into properties zones, assessing across different seasons: T1 (spring), T2 (summer), T3 (autumn). results demonstrated significant changes matter, ammonium nitrogen, nitrate other indicators T3. Apart from invertase activity H. altissima soil, enzyme peaked during T1. Dominant bacteria were examined using high-throughput 16S rDNA sequencing, revealing that available belong 62 phyla 211 classes. Among most abundant Proteobacteria Actinobacteria, averaging over 60% all samples. Principal component analyses accounted 62.81% (T1), 50.57% (T2), 54.08% (T3) variation observed study, indicating predominantly influenced by phases, assuming factors remained constant. Pearson correlation analysis (p < 0.05) identified strong positive correlations physical three plant (r ≤ 0.94), as well negative bacterial communities -1.00). findings suggest selected well-suited cultivation zone TGDR. enhances our understanding dynamics environments, offering practical insights their management.

Язык: Английский

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Pollution Characteristics and Eutrophication Assessment in Plain River Network Areas: A Case Study of the Beijing–Hangzhou Grand Canal (Changzhou Section)

Water, Год журнала: 2024, Номер 16(23), С. 3353 - 3353

Опубликована: Ноя. 22, 2024

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

Язык: Английский

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Integrated environmental assessment of a diversion-project-type urban water source considering the risks of novel and legacy contaminants

The Science of The Total Environment, Год журнала: 2024, Номер 951, С. 175380 - 175380

Опубликована: Авг. 8, 2024

Язык: Английский

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Nitrogen and Phosphorus in Water-Sediment System of Eutrophic Lake Amended with Biochar-Supported Effective Microorganisms: Temporal Variation and Remediation

Опубликована: Янв. 1, 2024

Язык: Английский

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Synchronous control of nitrogen and phosphorus release from sediments in shallow lakes under wind disturbance by modified zeolite and Ca/Al-based sludge combination

Environmental Research, Год журнала: 2024, Номер 264, С. 120448 - 120448

Опубликована: Ноя. 23, 2024

Язык: Английский

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