Experimental Study on the Removal of Pollutants from Domestic Wastewater in a Strongly Constructed Wetland with an Applied Electric Magnetic Field DOI Open Access

Fajin Yin,

Rong Ma,

Liechao Xiong

et al.

Water, Journal Year: 2024, Volume and Issue: 16(21), P. 3088 - 3088

Published: Oct. 28, 2024

The addition of physical field enhancement measures to improve the purification effect vertical flow artificial wetlands has gradually become popular. In this study, a wetland system reinforced by electric and magnetic fields was constructed. These were first optimized using finite element 3D simulation software obtain optimal parameters. Then, pollutant removal effects changes in microbial community structure comparatively analyzed. electromagnetic parameters (applied voltage 15 V applied 20 mT) resulted significantly enhanced rates chemical oxygen demand (COD), nitrate nitrogen (NH4+-N), total phosphorus (TP), orthophosphorus (PO43−-P) wastewater, with 74.47%, 45.44%, 89.85%, 90.04%, respectively. notably higher than those observed system. analysis revealed that constructed exhibited (EM-VFCW) more diverse complex structure. Notably, abundance bacteria capable removing NH4+-N COD, including Aspergillus, Fusarium, Actinobacteria, elevated.

Language: Английский

Microbial mutualisms explain the influencing mechanism of current density on the performance of a sole pyrite-based electrochemical bioreactor during the stable phase DOI

Yufan Xie,

Sicheng Yuan,

Qinglong Wang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161684 - 161684

Published: March 1, 2025

Language: Английский

Citations

0
Effect of carbon materials with different nano-iron oxide loadings on aerobic granular sludge systems DOI

Kaipeng Deng,

Junguo He,

Wei-Xun Jiang

et al.

Environmental Technology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 12

Published: April 21, 2025

This study investigated iron oxide-loaded powdered activated carbon (FONP-PAC) with varying Fe/C ratios (FC1 in S1, FC2 S2) aerobic granular sludge (AGS) systems. S2 achieved the fastest growth, reaching 1106 μm by day 80 (87.14% larger than control S0). During stable operation, exhibited superior pollutant removal: 95.96% COD, 100% NH4+-N, and 79.53% TN removal, alongside highest denitrification rate (9.93 mg·gVSS⁻¹·h⁻¹, 71.68% above Comparatively, S1 showed slightly lower efficiencies (94.20% 71.50% TN) activity (8.35 mg·gVSS⁻¹·h⁻¹). Microbial analysis revealed enriched Bacteroidota phyla sustained Zoogloea genus abundance FONP-PAC reactors. Higher oxide loading enhanced interspecies electron transfer, accelerating granule growth nitrogen removal. Larger granules promoted stratified microbial niches, improving oxygen gradient-dependent processes like simultaneous nitrification-denitrification. These findings demonstrate that optimized dosing strengthens structure metabolic synergy, achieving dual benefits of rapid granulation high-efficiency nutrient removal through physicochemical-microbial interactions. The provides insights into nano-material mediated AGS enhancement for wastewater treatment optimization.HighlightsThe threshold effect nano-iron on (Anaerobic Granular Sludge) was revealed.The mechanism which (Functionalized Oxide Nanoparticles-Polymeric Aluminum Chloride) promotes transfer a conductive network elucidatedA strategy targeted enrichment Thauera material proposed.

Language: Английский

Citations

0
Analysis of the contribution of different electron transfer pathways for hydrogen production in a bioelectrochemically assisted dark fermentation system DOI

Yaowei Lv,

Qing Feng,

Xiaoxiang Li

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 72, P. 967 - 975

Published: June 1, 2024

Language: Английский

Citations

3
A novel three-dimensional biofilm-electrode/anoxic-oxic process for nitrogen and phosphorus removal: Performance, mechanism and microbial community DOI
Mingshuang Zhang, Zhentao Yuan, Haotian Yang

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 65, P. 105853 - 105853

Published: July 23, 2024

Language: Английский

Citations

2
Significantly accelerated aerobic granulation using Ca(ClO)2 hydrothermally pretreating sludge DOI
Tingting Cao, Xiaomeng Li, Yue Yang

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 65, P. 105858 - 105858

Published: July 26, 2024

Language: Английский

Citations

0
Experimental Study on the Removal of Pollutants from Domestic Wastewater in a Strongly Constructed Wetland with an Applied Electric Magnetic Field DOI Open Access

Fajin Yin,

Rong Ma,

Liechao Xiong

et al.

Water, Journal Year: 2024, Volume and Issue: 16(21), P. 3088 - 3088

Published: Oct. 28, 2024

The addition of physical field enhancement measures to improve the purification effect vertical flow artificial wetlands has gradually become popular. In this study, a wetland system reinforced by electric and magnetic fields was constructed. These were first optimized using finite element 3D simulation software obtain optimal parameters. Then, pollutant removal effects changes in microbial community structure comparatively analyzed. electromagnetic parameters (applied voltage 15 V applied 20 mT) resulted significantly enhanced rates chemical oxygen demand (COD), nitrate nitrogen (NH4+-N), total phosphorus (TP), orthophosphorus (PO43−-P) wastewater, with 74.47%, 45.44%, 89.85%, 90.04%, respectively. notably higher than those observed system. analysis revealed that constructed exhibited (EM-VFCW) more diverse complex structure. Notably, abundance bacteria capable removing NH4+-N COD, including Aspergillus, Fusarium, Actinobacteria, elevated.

Language: Английский

Citations

0