Enhanced Removal of Tn in Shale Gas Wastewater by a Novel Porous Polymer Monolith Immobilized Microorganisms

Published: Jan. 1, 2024

Shale gas flowback and produced water (SGFPW) pose significant challenges to biotechnology due their high salinity. In this study, we explored a novel method utilizing an amphiphilic copolymer of methyl methacrylate acrylamide (p(MMA-AAM)) powdered activated carbon (PAC) modify poly(ether sulfone) (PES). We prepared series monoliths for microorganism immobilization using both thermal-induced phase separation non-solvent-induced separation. Characterization the via FTIR, SEM, BET analysis revealed improved hydrophilicity in p(MMA-AAM)-modified increased specific surface area (SSA) with PAC addition. Particularly, highest SSA was observed 0.5 g (0.5-PAC/PES) monolith at 235.1861 m2/g. Wastewater treatment experiments demonstrated that 0.5-PAC/PES system exhibited superior pollutant removal performance. It enhanced microbial efficiency promoted growth, thereby boosting biological efficacy efficiency. The achieved nearly 100% NO3- total nitrogen (TN) simulated SGFPW. Besides, rates TN organic (TOC) actual SGFPW by were 1.5 times 1.3 higher, respectively, than those suspended microorganisms. This work introduces new approach immobilize microorganisms, enhancing activity under salinity conditions.

Language: Английский

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Enhanced Removal of Tn in Shale Gas Wastewater by a Novel Porous Polymer Monolith Immobilized Microorganisms

Published: Jan. 1, 2024

Language: Английский

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Study in the impact of quaternized graphene oxide (QGO) composition as modifier on the chemical, physical, mechanical, and performance properties of polyvinylidene fluoride (PVDF)-based nanocomposite membrane

Communications in Science and Technology, Journal Year: 2024, Volume and Issue: 9(1), P. 30 - 37

Published: July 12, 2024

Polyvinylidene Fluoride (PVDF) membranes were modified with quaternized graphene oxide (QGO) synthesized from and ammonium groups. PVDF/QGO created by blending PVDF 0.01-0.05 g QGO via phase inversion. FTIR confirmed the successful incorporation. exhibited increased mechanical stiffness. Meanwhile, SEM revealed asymmetric morphology surface internal pores. AFM showed membrane 0.05 had highest roughness of 101.2 nm, which filtration area flux. improved hydrophilicity through hydroxyl quaternary groups, enhancing water flux up to 1208 Lm?2h?1 for QGO. Cu2+ rejection 75% due chelation adsorption effects. displayed bacterial growth inhibition, unlike pristine PVDF. The inhibition zone diameter more QGO, indicating antibacterial activity. Overall, this study demonstrated that membranes' hydrophilicity, properties, strength.

Language: Английский

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Understanding of biofilm formation inhibition in moving bed biofilm reactors treating wastewater of highly nontoxic organic matter

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 69, P. 106721 - 106721

Published: Dec. 6, 2024

Language: Английский

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