Response of VFAs Produced by Kitchen Waste Fermentation to Intermittent pH Regulation and Enhanced Denitrification Efficiency DOI Open Access
Shijie Xu, Wei Wen, Xiao Huang

et al.

Water, Journal Year: 2025, Volume and Issue: 17(8), P. 1157 - 1157

Published: April 13, 2025

To investigate the effects of intermittent pH regulation on volatile fatty acid (VFA) production during kitchen waste fermentation and its impact nitrogen removal efficiency in anaerobic/anoxic/oxic (A2O) process, five experimental groups were set up (pH = 3, 5, 7, 9, control). The study examined promotion soluble chemical oxygen demand (SCOD) VFA release under different conditions their contribution to total (TN) release. Additionally, methanol was used as a control carbon source explore enhancement denitrification when broth A2O process. results indicated that neutral alkaline could enhance SCOD conversion VFAs, with more pronounced effect conditions. maximum concentrations VFAs reached 36,412 5947 mg/L, respectively. Furthermore, TN most significant conditions, being 2.39 times group. When source, Proteobacteria Bacteroidota significantly enriched. relative abundance key functional genes (napA, norB, nosZ) involved cycling enzymes ([EC: 1.7.1.15], [EC: 1.7.2.1], 1.7.2.5]) enhanced, which strengthened performance.

Language: Английский

A comprehensive review on iron‒carbon microelectrolysis constructed wetlands: Efficiency, mechanism and prospects DOI
Yongqiang Wang, Linlin Li, Xiaochun Guo

et al.

Water Research, Journal Year: 2024, Volume and Issue: 268, P. 122648 - 122648

Published: Oct. 16, 2024

Language: Английский

Citations

5
Application of iron carbon in constructed wetlands with different structures: Integrated or separate type? DOI
Qinghua Wang,

Zhimin Yang,

Zhenbin Pu

et al.

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 72, P. 107585 - 107585

Published: March 30, 2025

Language: Английский

Citations

0
Response of VFAs Produced by Kitchen Waste Fermentation to Intermittent pH Regulation and Enhanced Denitrification Efficiency DOI Open Access
Shijie Xu, Wei Wen, Xiao Huang

et al.

Water, Journal Year: 2025, Volume and Issue: 17(8), P. 1157 - 1157

Published: April 13, 2025

To investigate the effects of intermittent pH regulation on volatile fatty acid (VFA) production during kitchen waste fermentation and its impact nitrogen removal efficiency in anaerobic/anoxic/oxic (A2O) process, five experimental groups were set up (pH = 3, 5, 7, 9, control). The study examined promotion soluble chemical oxygen demand (SCOD) VFA release under different conditions their contribution to total (TN) release. Additionally, methanol was used as a control carbon source explore enhancement denitrification when broth A2O process. results indicated that neutral alkaline could enhance SCOD conversion VFAs, with more pronounced effect conditions. maximum concentrations VFAs reached 36,412 5947 mg/L, respectively. Furthermore, TN most significant conditions, being 2.39 times group. When source, Proteobacteria Bacteroidota significantly enriched. relative abundance key functional genes (napA, norB, nosZ) involved cycling enzymes ([EC: 1.7.1.15], [EC: 1.7.2.1], 1.7.2.5]) enhanced, which strengthened performance.

Language: Английский

Citations

0