Progress in Organic Coatings, Journal Year: 2024, Volume and Issue: 199, P. 108959 - 108959
Published: Dec. 3, 2024
Language: Английский
Earth s Future, Journal Year: 2025, Volume and Issue: 13(3)
Published: March 1, 2025
Abstract Urban non‐point source (NPS) pollution has become an important issue affecting water quality, but current research focused mainly on local scales and lacked systematic evaluations at large spatial scales. Here, a meta‐analysis was conducted to explore the characteristics of runoff indicators (TSS: total suspended solids, TN: nitrogen, TP: phosphorus, COD: chemical oxygen demand) roads roofs in 41 Chinese cities, boosted regression tree model used reveal geographical differences levels contribution rates their influencing factors. The results revealed that average event mean concentrations (EMCs) TSS (326 mg/L), TP (0.6 COD (160 mg/L) were significantly greater road than roof runoff. Among them, nearly four times those runoff, whereas 3.2 2.3 greater, respectively. NPS is severe China, pollutants far exceed USA, Germany, France. There significant urban due influences air quality (35% relative contribution), climate conditions (15%), human activities (45%). Prominent from observed Central region, more Northern relatively light Southern North‐Eastern regions. This study provides first synthesis cities scale, resulting scientific guidance for stormwater management control.
Language: Английский
Citations
1
Catalysts, Journal Year: 2024, Volume and Issue: 14(9), P. 575 - 575
Published: Aug. 29, 2024
This review critically examines the latest advancements in clay mineral-based photocatalysts for water purification. Clay minerals, owing to their natural abundance, low cost, and unique physicochemical properties, have emerged as promising candidates enhancing photocatalytic efficiency. article delves into various activation methods including acid, alkali, calcination, mechanochemical activation, highlighting roles surface area, creating active sites, improving performance. Moreover, explores modification strategies photocatalysts, such doping with metal non-metal ions, deposition of metals, design heterojunctions, further boost activity. In particular, utilization kaolinite, montmorillonite, attapulgite, sepiolite mineral supports is discussed detail, showcasing potential wastewater treatment. The underscores significant strides made development effectiveness degrading organic contaminants under light exposure. Nevertheless, there are persisting challenges optimization loading quantities, improvement compatibility between minerals reduction preparation costs large-scale applications. summary, this offers valuable insights current status purification, thereby stimulating future research field.
Language: Английский
Citations
6
Iranian Journal of Science and Technology Transactions of Civil Engineering, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 2, 2025
Abstract Water pollution has become a growing threat to human society and natural ecosystems in recent decades. It increases the need understand surface water quality assessment better using chemometric tools within aquatic systems. This study sampled of 21 parameters at multiple sampling points Jabi Lake during wet dry seasons (August–December 2021) various statistical methods including cluster analysis, principal component analysis/factorial discriminant box plot analysis. These samples were examined for physicochemical employing standard techniques. The revealed significant seasonal variations quality. During season, key measurements included total dissolved solids (100.40 mg/l), oxygen (13.72 electrical conductivity (97.14 µs/cm). season showed higher levels most parameters, with 137.91 mg/l 230.93 µs/cm. Statistical analysis identified strong correlations between notably phosphate hardness ( r = 0.978, α 0.05) pH temperature 0.995, 0.05). four components explaining 98.5–100% variance, representing sources organic waste, domestic sewage, factors. findings indicated that more polluted, some exceeding World Health Organisation standards, suggesting potential health risks. research demonstrated effectiveness multivariate techniques analysing complex data provided valuable insights resource management, particularly regarding variations' impact on
Language: Английский
Citations
0
Journal of Molecular Liquids, Journal Year: 2025, Volume and Issue: unknown, P. 126948 - 126948
Published: Jan. 1, 2025
Language: Английский
Citations
0
Catalysts, Journal Year: 2025, Volume and Issue: 15(2), P. 154 - 154
Published: Feb. 7, 2025
The purpose of this work was to consider the decolorization efficiency reactive yellow 160 (Ry-160) dye utilizing cobalt aluminum oxide (AlCo2O4)-anchored Multi-Walled Carbon Nanotubes (AlCo2O4/MWCNTs) nanocomposites as catalysts for first time in a photocatalytic process under natural sunlight irradiation. compositional, morphological, and functional group analyses AlCo2O4 AlCo2O4/MWCNTs were performed by Energy Dispersive Spectroscopy (EDS), Field Emission Scanning Electron Microscopy (FE-SEM), Fourier Transform Infrared (FTIR) Spectroscopy, respectively. A UV-Vis (UV-Vis) spectrophotometer used investigate degradation efficiency. results exhibited reduction optical bandgap from 1.5 1.3 eV compared with pure spinel nanocomposites. showed excellent behavior, around 96% Ry-160 observed just 20 min sunlight, showing first-order kinetics rate constant 0.151 min−1. outstanding stability reusability maintaining more than 90% even after seven successive operational cycles. betterment behavior owes first-rate storage capacity electrons MWCNTs, due which catalyst became an electron acceptor. Furthermore, permeable structure MWCNTs greater surface area leading onset active sites, and, turn, it also boosts conductivity reduces formation agglomerates on catalysts, inhibits e−/h+ pair recombination. Concisely, synthesis novel fast activity aim study.
Language: Английский
Citations
0
Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179934 - 179934
Published: March 1, 2025
Language: Английский
Citations
0
Ecological Indicators, Journal Year: 2025, Volume and Issue: 175, P. 113512 - 113512
Published: April 24, 2025
Language: Английский
Citations
0
Progress in Organic Coatings, Journal Year: 2024, Volume and Issue: 199, P. 108959 - 108959
Published: Dec. 3, 2024
Language: Английский
Citations
2