Recent challenges and research progress in microbiologically influenced corrosion in drinking water distribution systems

Environmental Technology & Innovation, Journal Year: 2025, Volume and Issue: unknown, P. 104054 - 104054

Published: Jan. 1, 2025

Language: Английский

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Microbial adaptation and biodegradation mechanisms of perfluorinated compounds in different functional zones of the Yellow River Delta, China

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 187, P. 1037 - 1046

Published: May 6, 2024

Language: Английский

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Sodium chloride-activated polymeric ferric sulfate-modified natural zeolite (Z-Na-Fe): Application of bio-slow filtration for the removal of ammonia and phosphorus from micro-polluted cellar water

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 61, P. 105367 - 105367

Published: April 23, 2024

Language: Английский

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Perfluorooctanoic acid (PFOA) and its alternative perfluorobutanoic acid (PFBA) alter hepatic bile acid profiles via different pathways

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 950, P. 175312 - 175312

Published: Aug. 8, 2024

Language: Английский

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Optimized multi-stage baffle design for enhanced pollutant interception in rainwater harvesting systems

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 70, P. 107052 - 107052

Published: Jan. 23, 2025

Language: Английский

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Responses of partial denitrification process to long-term perfluorooctane sulfonic acid stress: Performance, microbial community and functional genes

Journal of environmental chemical engineering, Journal Year: 2023, Volume and Issue: 11(6), P. 111372 - 111372

Published: Nov. 3, 2023

Language: Английский

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Deciphering the microbial community characteristics in sediment derived from a rainwater harvesting cellar in Northwestern China

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(2), P. 112115 - 112115

Published: Feb. 3, 2024

Language: Английский

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Pillar[5]arene‐based Polymer Network for Efficiently Removing Perfluorooctanoic Acid through Synergistic Binding Interactions

ChemSusChem, Journal Year: 2024, Volume and Issue: 18(3)

Published: Sept. 21, 2024

Perfluorooctanoic acid (PFOA) is currently one of the most important chemicals posing environmental risks, and there an urgent need to find methods efficiently remove PFOA from media. Here, two decaamino-pillar[5]arene-based fluorine-rich polymer networks, called FA2P-P FA6P-P, were constructed using a convenient method. FA6P-P had excellent ability take up PFOA, capacity 1423 (mg PFOA) (g FA6P-P)-1, which second highest adsorption reported for any sorbent. removed >99 % solution decreased concentration 1000 μg L-1 in 5 min at exceedingly low adsorbent loading 0.7 mg L-1, giving final <4 ng lower than recent enforceable maximum set by United States Environmental Protection Agency. A high rate constant (kobs) 55.8 g mg-1 h-1 was observed. Pillar[5]arene gives material hydrophobic properties also amino sites chains, are synergistic binding sites. The very stable readily regenerated. results indicated that pillar[5]arene-based porous organic sorbents candidates capturing PFOA.

Language: Английский

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Grafting of Polyethyleneimines on Porous Silica Beads and Their Use for Adsorptive Removal of Cr(VI) from Aqueous Medium

Physchem, Journal Year: 2024, Volume and Issue: 4(3), P. 214 - 233

Published: July 14, 2024

Porous silica-based adsorbents for hexavalent chromium (Cr(VI)) ion removal were prepared by the combined use of functionalization with (3-glycidyloxypropyl)trimethoxysilane and grafting branched linear polyethyleneimine (BPEI LPEI). LPEI was from polyethyloxazolin hydrolysis HCl. The preparation identified NMR measurements BPEI on silica beads confirmed an XPS analysis. Cr(VI) adsorption obtained BPEI-grafted (BPEI–silica beads) investigated as a function pH value, content amino groups, temperature, concentration, molecular mass grafted chains. at 3.0 increased increase in maximum capacity 1.06 mmol/g when groups 2.17 mmol/g. This value corresponds to 589 mg/g−1.8KPEI, ratio about 0.5 is noteworthy result. data fit pseudo-second-order kinetic model, suitability this fitting supported results that initial rate temperature. In addition, equilibrium followed Langmuir isotherm model. These clearly demonstrate occurred chemically, or through electrostatic interaction protonated chains hydrochromate (HCrO4−) ions. A higher shorter chains, BPEI–silica little than PEI-grafted beads, suggesting affected chain isomerism PEI (linear branched) well addition groups. experimental analytical derived study emphasize can be used adsorbent ions aqueous medium.

Language: Английский

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Sodium Chloride-Activated Polymeric Ferric Sulfate-Modified Natural Zeolite (Z-Na-Fe): Application of Bio-Slow Filtration for the Removal of Ammonia and Phosphorus from Micro-Polluted Cellar Water

Published: Jan. 1, 2023

People in remote villages and towns use water cellars to store natural rainwater for drinking, bio-slow filtration is suitable the treatment of such small-scale, minimally contaminated drinking towns. In this study, sodium chloride-activated polymeric ferric sulfate-modified zeolite (Z-Na-Fe) was prepared by impregnation applied degrade simulated micropolluted cellar filtration. The slow column required only 25 d complete membrane hanging had best purification effect stability. Its average removal rate ammonia nitrogen phosphorus 82.81% 77.30% during stable operation. Modifying chloride polymerized iron sulfate resulted better adsorption improved species number microorganisms column. This study can provide a feasible solution rural treatment.

Language: Английский

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