Genera complying denitrifying phosphorus removal community contribute excellent SND-PR in a pilot cyclic SBR: Effect of DO, settling and recirculation rate on process performance

Environmental Research, Journal Year: 2025, Volume and Issue: 270, P. 121011 - 121011

Published: Feb. 3, 2025

Language: Английский

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Effect of bubble size on microbial community in intermittently-aerated activated sludge process in wastewater treatment

Process Biochemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Nitrogen removal from digested effluent of swine wastewater using an integrated aeration (mixing)–sedimentation reactor

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 71, P. 107384 - 107384

Published: March 1, 2025

Language: Английский

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Evaluating the role of different redox conditions on the removal of sulfamethoxazole, acetaminophen, and carbamazepine from wastewater: Insights into biodegradation and sorption mechanisms

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116106 - 116106

Published: March 1, 2025

Language: Английский

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Denitrification efficiency and biofilm community succession in a bidirectional alternating influent biofilter

Environmental Technology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 15

Published: March 8, 2025

Biofilters are widely used for nitrogen removal in wastewater treatment. This study developed a bidirectional alternating-influent biofilter to reduce clogging and enhance removal. Alternating influent utilized biofilm on the media as denitrification carbon source. With initial ammonium, nitrate, total concentrations of 8.49±0.30, 12.52±0.20, 19.89±0.79 mg/L, forward achieved efficiencies 81.6%, 66.8%, 71.2%, increasing by 13.3%, 3.0%, 4.8% at effluent. Reverse further boosted nitrate 14.0% 5.5%. The natural DO gradient under conventional conditions was simulated, mechanism treatment effect, mainly nitrification denitrification, were discussed. Microbial analysis showed that endogenous biofilm, derived from decaying cells EPS, reduced risk. Significant changes bacterial count, EPS content, microbial abundance observed across directions, with Proteobacteria, Bacteroidetes, Pseudomonas reverse flow. These results indicate alternating can significantly improve clogging, offering an effective optimization

Language: Английский

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New biological treatment method of domestic wastewater with simultaneous nitrification and denitrification based on detached biofilm

Applied Water Science, Journal Year: 2025, Volume and Issue: 15(4)

Published: March 14, 2025

The paper relates to the treatment of municipal wastewater by intensifying simultaneous nitrification and denitrification processes. obtained results can be applied construction new plants as well upgrading existing facilities enhance nitrogen removal efficiency from treated water. developed method corresponding installation leverage potential floating biofilm within activated sludge systems initiate sustain processes throughout entire volume biological reactor. film is supplied in technological flow based on periodic aeration submerged biofilter compartment located post-aeration zone with a periodicity shorter than residence time Nitrification achieves an up 99.3%. Simultaneously, occurs ranging 19.9 91.1%, which fundamentally correlated temperatures wastewater. presence microorganism conglomerates sludge, detached through innovative method, initiates enhances process during continuous aeration, due functioning formed these conglomerates. Denitrification has been observed both terms substrate consumption available (COD) result bacterial lysis anaerobic interfloccular zone, without external carbon substrate. evaluated analyzing compartments cocoons conglomerates, are interflocular zone. This becomes more prominent where there deficiency sources (CODCr) wastewater, especially at 17.6 °C 20.4 °C. were implemented line Causeni city Wastewater Treatment Plant (Republic Moldova).

Language: Английский

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Model order reduction of an ion exchange process for ammonium removal in groundwater

IFAC-PapersOnLine, Journal Year: 2025, Volume and Issue: 59(1), P. 157 - 162

Published: Jan. 1, 2025

Language: Английский

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Effects of triclosan on microalgal-bacterial symbiosis system operating in stable phase: Performances and mechanisms

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 72, P. 107568 - 107568

Published: April 1, 2025

Language: Английский

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Techno-economic and environmental analysis of Modified Ludzack-Ettinger (MLE) process for enhanced energy efficiency and recovery

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 74, P. 107728 - 107728

Published: April 25, 2025

Language: Английский

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Identification and Functional Characterization of MdNRT1.1 in Nitrogen Utilization and Abiotic Stress Tolerance in Malus domestica

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(11), P. 9291 - 9291

Published: May 26, 2023

Nitrate is one of the main sources nitrogen for plant growth. transporters (NRTs) participate in nitrate uptake and transport, they are involved abiotic stress tolerance. Previous studies have shown that NRT1.1 has a dual role utilization; however, little known about function MdNRT1.1 regulating apple growth uptake. In this study, MdNRT1.1, homolog Arabidopsis NRT1.1, was cloned functionally identified. treatment induced an increased transcript level overexpression promoted root development utilization. Ectopic expression repressed tolerance to drought, salt, ABA stresses. Overall, study identified transporter, apples revealed how regulates utilization

Language: Английский

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