Disentangling drivers of mudflat intertidal DOM chemodiversity using ecological models

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Авг. 5, 2024

Microorganisms consume and transform dissolved organic matter (DOM) into various forms. However, it remains unclear whether the ecological patterns drivers of DOM chemodiversity are analogous to those microbial communities. Here, a large-scale investigation is conducted along Chinese coasts resolve intrinsic linkages among complex intertidal pools, communities environmental heterogeneity. The abundance molecular formulae best fits log-normal distribution follows Taylor's Law. Distance-decay relationships observed for labile formulae, while latitudinal diversity gradients noted recalcitrant formulae. Latitudinal also features. Negative cohesion, bacterial diversity, traits main chemodiversity. Stochasticity analyses demonstrate that determinism dominantly shapes compositional variations. This study unveils mechanisms underlying from perspectives, deepening our understanding microbially driven chemical ecology. Intertidal similar microbes, suggesting there may exist universal models explaining both living non-living biological entities in Earth's biosphere.

Язык: Английский

---

Machine Learning Models for Evaluating Biological Reactivity Within Molecular Fingerprints of Dissolved Organic Matter Over Time

Geophysical Research Letters, Год журнала: 2024, Номер 51(11)

Опубликована: Июнь 1, 2024

Abstract Reservoirs exert a profound influence on the cycling of dissolved organic matter (DOM) in inland waters by altering flow regimes. Biological incubations can help to disentangle role that microbial processing plays DOM within reservoirs. However, complex composition poses great challenge analysis such data. Here we tested if interpretable machine learning (ML) methodologies contribute capturing relationships between molecular reactivity and composition. We developed time‐specific ML models based 7‐day 30‐day simulate biogeochemical processes Three Gorges Reservoir over shorter longer water retention periods, respectively. Results showed extended time likely allows successive degradation molecules, with stochasticity exerting non‐negligible effect at initial stage incubation. This study highlights potential enhancing our interpretation dynamics time.

Язык: Английский

---

Molecular Insights into the Transformation of Dissolved Organic Matter in a Full-Scale Wastewater Treatment Plant

ACS ES&T Water, Год журнала: 2024, Номер 4(9), С. 4228 - 4238

Опубликована: Авг. 16, 2024

The compounds generated during wastewater treatment processes might increase the complexity and chemical risk assessment of wastewater-derived dissolved organic matter (DOM) released into receiving water. This study applied Fourier transform ion cyclotron resonance mass spectrometry to investigate dynamic changes in composition at molecular level a full-scale municipal plant (WWTP). Approximately 63.1% detected molecules effluent were derived from influent. N/S-containing more effectively removed than CHO studied WWTP. dealkylation oxygen addition reactions N-containing molecules, along with predominant N-addition observed anaerobic oxic tanks, contributed higher N/Cwa However, S-containing could be via S-loss anoxic/anaerobic/oxic (inverted A/A/O) processes. Dealkylation found reaction types all tanks inverted A/A/O More oxidized aromaticity unsaturation degree Our findings provide comprehensive view transformation DOM WWTP offer valuable insights water quality.

Язык: Английский

---

Effect of a high Cl– concentration on the transformation of waste leachate DOM by the UV/PMS system: A mechanistic study using the Suwannee River natural organic matter (SRNOM) as a simulator of waste leachate DOM

Journal of Hazardous Materials, Год журнала: 2025, Номер 487, С. 137038 - 137038

Опубликована: Янв. 5, 2025

Язык: Английский

---

Unveiling molecular DOM reactomics and transformation coupled with multifunctional nanocomposites under anaerobic conditions: Tracking potential metabolomics and pathways

Chemosphere, Год журнала: 2025, Номер 372, С. 144111 - 144111

Опубликована: Янв. 20, 2025

Язык: Английский

---

A Novel Single-Chamber Bio-Electro-Fenton for E2-3s Removal: Insights into the Effects of Wastewater-Derived Dom Composition from Molecular and Species Levels

Опубликована: Янв. 1, 2025

Язык: Английский

---

A novel single-chamber bio-electro-Fenton for E2-3S removal: Insights into the effects of wastewater-derived DOM composition from molecular and species levels

Journal of Hazardous Materials, Год журнала: 2025, Номер unknown, С. 138147 - 138147

Опубликована: Апрель 1, 2025

Язык: Английский

---

Accurate Detection and High Throughput Profiling of Unknown PFAS Transformation Products for Elucidating Degradation Pathways

Water Research, Год журнала: 2025, Номер 282, С. 123645 - 123645

Опубликована: Апрель 15, 2025

Язык: Английский

---

Enhanced removal of biolabile oxygen-depleted dissolved organic matter by coagulation-adsorption process Improves biological stability of reclaimed water

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 157156 - 157156

Опубликована: Окт. 1, 2024

Язык: Английский

---