Current status, potential assessment, and future directions of biological treatments of unconventional oil and gas wastewater

Water Research, Journal Year: 2025, Volume and Issue: unknown, P. 123217 - 123217

Published: Jan. 1, 2025

Language: Английский

---

Filtration Performance of Biofilm Membrane Bioreactor: Fouling Control by Threshold Flux Operation

Chemosphere, Journal Year: 2024, Volume and Issue: 362, P. 142458 - 142458

Published: May 27, 2024

Language: Английский

---

Coupling Anaerobic–Oxic and Integrated Fixed–Activated Sludge Processes for Removal and Transformation of Refractory Organic Matter in Livestock and Poultry Digestate

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Abstract Effective treatment of livestock and poultry digestate remains challenging due to its high content refractory organic matter. In this study, a coupled anaerobic–oxic (A/O) integrated fixed–film activated sludge (IFAS) system was investigated evaluate capacity for removal molecular transformation. The IFAS outperformed the A/O system, achieving an efficiency 43%, compared 17% in process. Molecular analyses revealed distinct transformation pathways: process tended increase weight structural complexity dissolved matter, whereas promoted oxidative fragmentation, resulting formation smaller, oxygen–rich compounds. These changes were reflected key indices (DBE, NOSC, AI mod ) accumulation carboxyl–rich intermediates. Microbial community analysis associated Bacteroidota with degradation oxygenated compounds via hydrolytic processes, while Actinobacteria Deinococcota linked lignin– derived aromatics. integration advanced characterization microbial profiling highlights system’s enhanced capability both simplification biodegradation complex organics, providing promising strategy high–strength wastewater.

Language: Английский

---

New insight in the biotreatment of produced water: Pre-oxidation paves a rapid pathway for substrate selection in microbial community

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 136483 - 136483

Published: Nov. 10, 2024

Language: Английский

---

Enhanced removal of TN in shale gas wastewater by a novel porous polymer monolith immobilized microorganisms

Biochemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 109650 - 109650

Published: Jan. 1, 2025

Language: Английский

---

Enhancing ferrate(VI) oxidation by ferrous iron for pretreating shale gas produced water and mitigating ultrafiltration membrane fouling

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 133248 - 133248

Published: April 1, 2025

Language: Английский

---

Effect of backwash as a strategy for biofouling control in the submerged ceramic membrane bioreactor for high-density cultivations: Process optimization and fouling mechanism at pilot scale

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 338, P. 126428 - 126428

Published: Jan. 28, 2024

Submerged membrane bioreactors are effective tools for synergistic production of valuable compounds, cell retention in the bioreactor, and separation products from reaction solution. However, fouling is a problem that impairs efficiency processes involving submerged bioreactors. One mechanical methods efficient mitigation backwash. Therefore, this study investigated backwash as method mitigating biofouling ceramic specifically terms Saccharomyces cerevisiae suspension. To identify key factors affecting dynamic flux their interactions, Fractional Factorial Design (FFD) was employed based on operating variables (2 levels, 5 variables). The average model showed dependency flow rate backwash, time between cycles, duration, concentration, process (adjusted R2=0.99). Furthermore, effect recovery assessed comparison to without It found after application up 100% initial could be recovered. In contrast, only around 20% maintained optimized conditions were at 1500 mL min-1, cycles min, duration sec, concentration 20 grams dry weight per liter, 0.5 h. mechanism determined deposition yeast cells surface blocking pores inside by sorbitan monostearate reagent present

Language: Английский

---

Pretreatment of shale gas flowback water (SGFW) by hydroxylamine and FexOy/γ-Al2O3 synergistic catalytic ozone oxidation (HSCO)

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 59, P. 104972 - 104972

Published: Feb. 14, 2024

Language: Английский

---

Florfenicol removal from veterinary pharmaceutical effluents: Tri-metallic zeolite 5A° for electrochemical oxidation and catalytic ceramic membrane separation

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112692 - 112692

Published: April 5, 2024

Language: Английский

---

Interactions between microbial communities and polymers in hydraulic fracturing water cycle: A review

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 947, P. 174412 - 174412

Published: July 6, 2024

Language: Английский

---