Synchronous vanadium bio-reduction/detoxification/recovery and nitrogen attenuation in a membrane aerated biofilm reactor

Environmental Pollution, Год журнала: 2025, Номер unknown, С. 126095 - 126095

Опубликована: Март 1, 2025

Язык: Английский

---

Reason and control strategy for denitrification and anammox sludge flotation in nitrogen removal process: Mechanisms, strategies and perspectives

Environmental Research, Год журнала: 2024, Номер 258, С. 119456 - 119456

Опубликована: Июнь 19, 2024

Язык: Английский

---

Aerobic denitrifying bacterial community with low C/N ratio remove nitrate from micro-polluted water: Metagenomics unravels denitrification pathways

The Science of The Total Environment, Год журнала: 2024, Номер 951, С. 175457 - 175457

Опубликована: Авг. 11, 2024

Язык: Английский

---

Anoxic nitrification with carbon-based materials as terminal electron acceptors

Bioresource Technology, Год журнала: 2024, Номер 406, С. 130961 - 130961

Опубликована: Июнь 12, 2024

This study investigates the potential of humic substances (HS) and graphene oxide (GO), as extracellular electron acceptors (EEA) for nitrification, aiming to explore alternatives sustain this process in wastewater treatment systems. Experimental results demonstrate conversion ammonium nitrate (up 87 % conversion) coupled reduction either HS or GO by anaerobic consortia. Electron balance confirmed contribution oxidation. Tracer analysis incubations performed with 15NH4+ demonstrated 15NO3- main product a minor fraction ending 29N2. Phylogenetic identified Firmicutes, Euryarchaeota, Chloroflexi microbial lineages potentially involved anoxic nitrification linked reduction. introduces new avenue research which carbon-based materials electron-accepting capacity may support oxidation ammonium, instance bioelectrochemical systems anodes could novel process.

Язык: Английский

---

Effect of elemental sulfur on anaerobic ammonia oxidation: Performance and Mechanism

Environmental Research, Год журнала: 2024, Номер 262, С. 119778 - 119778

Опубликована: Авг. 22, 2024

Язык: Английский

---

A comprehensive analysis of microbial community differences in four morphologies of mainstream anaerobic ammonia oxidation systems using big-data mining and machine learning

Frontiers in Marine Science, Год журнала: 2024, Номер 11

Опубликована: Сен. 4, 2024

Achieving carbon neutrality in wastewater treatment plants relies heavily on mainstream anaerobic ammonia oxidation. However, the stability of this process is often compromised, largely due to significant influence microbial morphology. This study analyzed 208 samples using bioinformatics and machine learning (ML) across four different morphologies: Suspended Sludge (SS), Biofilm, Granular (GS) Integrated Fixed-film Activated (IFAS). The results revealed IFAS’s notably complex stable community structure, along with identification endemic genera common among morphologies. Through co-occurrence network analysis, interaction between microorganisms various was displayed. Utilizing Extreme Gradient Boosting (XGBoost) model, a ML modeling framework based microbiome data developed. ML-based feature importance analysis identified LD-RB-34 as key organism SS BSV26 an important bacterium IFAS. Additionally, functional bacteria KF-JG30-C25 occupied higher proportion GS, Unclassified Brocadiaceae Biofilm. Furthermore, dissolved oxygen, temperature pH were primary factors determining communities influencing anammox activity. Overall, deepens our understanding bacterial enhance nitrogen removal.

Язык: Английский

---

Performance and microbial community analysis of SBR and MBBR systems under different operational modes for oil shale retorting wastewater treatment

Biochemical Engineering Journal, Год журнала: 2024, Номер 215, С. 109618 - 109618

Опубликована: Дек. 14, 2024

Язык: Английский

---