Dissolved Organic Matter Mediates the Interactions between Bacterial Community and Trace Metal Fractionation: Field Evidence in Contaminated Coal Mines

Published: Jan. 1, 2025

Language: Английский

---

Spectroscopic investigation of the binding behavior of Cd2+, Cu2+, Cr3+ and Fe3+ with humic acid of varying molecular weights

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 71, P. 107434 - 107434

Published: March 1, 2025

Language: Английский

---

Submerged aquatic plants affect the priming effect of dissolved organic carbon degradation in shallow lakes

Journal of Environmental Sciences, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

---

Dissolved organic matter mediates the interactions between bacterial community and heavy metal fractionation in contaminated coal mine soils

Ecotoxicology and Environmental Safety, Journal Year: 2025, Volume and Issue: 297, P. 118237 - 118237

Published: April 25, 2025

Language: Английский

---

Capturing differences in the release potential of dissolved organic matter from biochar and hydrochar: Insights from component characterization and molecular identification

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 955, P. 177209 - 177209

Published: Nov. 2, 2024

Language: Английский

---

The new fate of MCLR revealed by dialysis equilibrium and theoretical calculations: Influence from DOM and Fe(II)/Mn(II)

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(6), P. 114671 - 114671

Published: Nov. 4, 2024

Language: Английский

---

Influence of biochar amendment on the binding characteristics of dissolved organic matter from chicken manure compost with Cu(II): an integrated analysis using EEM-PARAFAC, 2D-COS, and HPSEC

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 13, 2024

The addition of biochar (BC) during composting significantly influences the concentration and chemical structure dissolved organic matters (DOM), thereby affecting its binding properties with heavy metals (HMs). This study examines co-composting chicken manure varying BC dosages, specifically 0 wt% (CK), 1 (T1), 2 (T2), comparatively analyzes characteristics between compost-derived DOM copper ions (Cu(II)). EEM-PARAFAC analysis identified three primary components in DOM: fulvic acid-like (C1), humic (C2), protein-like (C3) components, each exhibiting distinct Cu(II) properties. complexation constants (logK) for these increased addition, whereas fraction bound sites (f values) decreased, indicating that BC-amended compost forms more stable DOM-Cu(II) complexes but fewer available sites. 2D-COS synchronous fluorescence spectra revealed fulvic-like peaks were sensitive to variations across all types, while humic-like substances exhibited a stronger preference binding. HPSEC results showed broad molecular weight (MW) distributions (100–300,000 Da) DOM, significant decrease medium MW regions (1000-30,000 as increased, suggesting fractions are particularly binding, leading higher weight-averaged values concentrations. provides new insights into how can influence behavior HMs, highlighting potential enhancing HMs immobilization compost-amended soils.

Language: Английский

---

Influence of Biochar Amendment on the Binding Characteristics of Dissolved Organic Matter from Chicken Manure Compost with Cu(II): An Integrated Analysis using EEM-PARAFAC, 2D-COS, and HPSEC

Waste and Biomass Valorization, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 14, 2024

Language: Английский

---