Cited by Enhanced Electron Transfer for the Improvement of Nitrogen Removal Efficiency and N2O Reduction at Low Temperatures

Bio-augmentation driven sulfur autotrophic denitrification process: focusing on denitrification performance, microbial community and gene characteristics DOI

Fang Liu,

Haipeng Li, Jingcheng Jiang

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: unknown, P. 114905 - 114905

Published: Nov. 1, 2024

Language: Английский

Citations

Fabrication of a Sulfur/Steel Slag-Based Filter and Its Application in the Denitrification of Nitrate-Containing Wastewater DOI

Haoyan Hou,

Mingxin Zhu, Gang Tang

et al.

Water, Journal Year: 2024, Volume and Issue: 16(5), P. 690 - 690

Published: Feb. 27, 2024

To solve the problems of deep nitrogen removal in wastewater treatment plants and high value utilization steel slag metallurgical industry, this work aims to prepare a sulfur/steel slag-based filter using melting method. The melt granulation method waste were main innovations work. On basis, performance media simulated actual systematically investigated. Furthermore, factors affecting studied, pilot experiments carried out. microbial community reactor was also analyzed. results showed that when mass ratio sulfur 9:1, could remove up 90% TN at room temperature, with hydraulic retention time (HRT) 5–20 h an influent 21 mg/L. In wastewater, effluent NO3−-N less than 2 mg/L, SO42− 200 pH between 6 8. from greater temperature under 8–20 8 Influence factor conducted C/N 2:1, DO 0.9–1 HRT 4 h. experiment confirmed stable below 10 compounded for practical engineering applications. Microbial analysis autotrophic denitrifying bacterial species Thiobacillus accounted 3.69% 5.55% systems, respectively. This provides novel strategy application solid field nitrate-containing treatment.

Language: Английский

Citations

Nitrification–Autotrophic Denitrification Using Elemental Sulfur as an Electron Donor in a Sequencing Batch Reactor (SBR): Performance and Kinetic Analysis DOI

Mario Corbalán,

C. Da Silva, Andrea Barahona

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(10), P. 4269 - 4269

Published: May 19, 2024

Simultaneous nitrification and autotrophic denitrification (SNAD) has received attention as an efficient biological nitrogen removal alternative. However, SNAD using elemental sulfur (S0) scarcely been studied. Thus, the main objective of this research was to study behavior a simultaneous nitrification–autotrophic operation in sequential batch reactor (SNAD-SBR) at lab scale S0 electron donor, including its kinetics. Two-scale reactors were operated scales cycles for 155 days with increasing loading rate (NLR: 0.0296 0.0511 kg N-NH4+/m3/d) 31 °C. As result, donor performed successfully, efficiency 98.63% 44.9%, limiting phase. The kinetic model adjusted ammonium-oxidizing bacteria (AOB) Monod-type (µmax = 0.791 d−1), while, nitrite-oxidizing (NOB), Haldane-type employed 0.822 d−1). For denitrifying microorganisms, by half order (k1/2v 0.2054 mg1/2/L1/2/h). we concluded that could be feasible similar other processes.

Language: Английский

Citations

N2O recovery from wastewater and flue gas via microbial denitrification: Processes and mechanisms DOI

Qimeng Liu,

Xinyi Li,

Meirou Wu

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 946, P. 174231 - 174231

Published: June 24, 2024

Language: Английский

Citations

Study on the treatment of black and odorous water bodies by aeration combined with sulfur-iron autotrophic denitrification MBBR DOI

Yannan Xue,

Minghong Zhang,

Mulan Zhu

et al.

Water Science & Technology, Journal Year: 2024, Volume and Issue: 90(5), P. 1629 - 1646

Published: Aug. 14, 2024

ABSTRACT As China's economy grows rapidly, there is a growing problem of rural water pollution, particularly regarding black and odorous bodies. However, the current treatment technologies have proven inadequate in both nitrogen phosphorus removal, primarily due to insufficient carbon-to-nitrogen ratio these bodies, resulting low removal efficiency. To address this challenge, study proposes novel process, namely ‘aeration + sulfur-iron autotrophic denitrification MBBR’. This innovative approach was compared with traditional MBBR’ process blank control group over an 18-day experimental period. Ten quality indicators were monitored compared, including odor, turbidity, DO, pH, COD, BOD5, NH3-N, NO3-N, TN, TP. The results revealed satisfactory performance processes terms NH3-N indicators. significant disparities observed new achieving rates 85.65 78.02%, respectively, −2.30 −4.05% for existing process. Furthermore, met surface class IV standard all 10 indicators, indicating its potential effectively addressing issue China.

Language: Английский

Citations

Revisit the Role of Hydroxylamine in Sulfur-Driven Autotrophic Denitrification DOI

Xiaxue Liao,

Ronghua Deng,

Linyan Yang

et al.

Water Research, Journal Year: 2024, Volume and Issue: 268, P. 122596 - 122596

Published: Oct. 9, 2024

Language: Английский

Citations

Enhanced Electron Transfer for the Improvement of Nitrogen Removal Efficiency and N2O Reduction at Low Temperatures DOI

Bangrui Lan,

Chunlei Liu,

Shanyun Wang

et al.

Water Research, Journal Year: 2024, Volume and Issue: 272, P. 122993 - 122993

Published: Dec. 17, 2024

Language: Английский

Citations