An overview of operations and processes for circular management of dredged sediments

Waste Management, Journal Year: 2022, Volume and Issue: 146, P. 20 - 35

Published: May 8, 2022

Language: Английский

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Effect of dissolved oxygen on high C/N wastewater treatment in moving bed biofilm reactors based on heterotrophic nitrification and aerobic denitrification: Nitrogen removal performance and potential mechanisms

Bioresource Technology, Journal Year: 2022, Volume and Issue: 365, P. 128147 - 128147

Published: Oct. 17, 2022

Language: Английский

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Feasibility of rapid gravity filtration and membrane ultrafiltration for the removal of microplastics and microlitter in sewage and wastewater from plastic industry

Journal of Water Process Engineering, Journal Year: 2022, Volume and Issue: 51, P. 103452 - 103452

Published: Dec. 27, 2022

Wastewater treatment plants (WWTPs) act as barriers in reducing uncontrolled microplastic and microlitter (MP-ML) emissions from both urban industrial wastewaters. Despite removing most of the MP-ML, large quantities this waste still enter environment through WWTP effluents, which means further post-treatment technologies are needed. This study contains a technical evaluation MP-ML removal wastewater (UWW) recycling plastic industry (PIWW) using two different pilot-scale systems: rapid gravity filtration (RGF) ultrafiltration (UF) membranes. The mass concentrations contained UWW PIWW were measured by simplified method adapted for long-term monitoring operations. was validated on standard samples. RGF system consumed less energy than UF treating (0.097 kWh·m−3 0.156 kWh·m−3, respectively), not efficient enough to properly decrease risk (39.5 ± 34.6 % removal). With respect PIWW, consumption plant decreased up 0.059 kWh·m−3. combination expected reduce membrane fouling but it did show significant differences mid-term operation.

Language: Английский

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Nitrate Bioreduction under Cr(VI) Stress: Crossroads of Denitrification and Dissimilatory Nitrate Reduction to Ammonium

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(29), P. 10662 - 10672

Published: July 14, 2023

This study explored the response of NO3–-N bioreduction to Cr(VI) stress, including reduction efficiency and pathways involved (denitrification dissimilatory nitrate ammonium (DNRA)). Different patterns conversion were proposed under suppress (0, 0.5, 5, 15, 30, 50, 80 mg/L) by evaluating dose dependence, toxicity accumulation, bioelectron behavior, microbial community structure. concentrations >30 mg/L rapidly inhibited removal immediately induced DNRA. However, denitrification completely dominated pathway at <15 mg/L. Therefore, 30 (R4 R6) selected explore selection different pathways. The exhibited continuous adaptation, wherein coexistence (51.7%) DNRA (13.6%) was achieved regulating distribution denitrifiers (37.6%) bacteria (32.8%). Comparatively, gradually replaced Cr(VI). intracellular Cr(III) accumulation in R6 6.60-fold greater than R4, causing more severe oxidant injury cell death. activated depended on value nitrite reductase activity/nitrate activity, with 0.84–1.08 associated activation 1.48–1.57 predominance. Although increased richness improved structure stability, inhibition or death nitrogen-reducing microorganisms caused decreased efficiency.

Language: Английский

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Recent advances and future perspective on lignocellulose-based materials as adsorbents in diverse water treatment applications

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 253, P. 126984 - 126984

Published: Sept. 19, 2023

Language: Английский

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Simultaneous removal of calcium, phosphorus, and bisphenol A from industrial wastewater by Stutzerimonas sp. ZW5 via microbially induced calcium precipitation (MICP): Kinetics, mechanism, and stress response

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 473, P. 134700 - 134700

Published: May 22, 2024

Language: Английский

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Enhanced nitrate removal efficiency and microbial response of immobilized mixed aerobic denitrifying bacteria through biochar coupled with inorganic electron donors in oligotrophic water

Bioresource Technology, Journal Year: 2024, Volume and Issue: 396, P. 130457 - 130457

Published: Feb. 16, 2024

Language: Английский

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Partial nitrification-denitrification and enrichment of paracoccus induced by iron-chitosan beads addition in an intermittently-aerated activated sludge system

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 353, P. 120189 - 120189

Published: Jan. 30, 2024

Language: Английский

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New insights into microbial community for simultaneous removal of carbon and nitrogen via heterotrophic nitrification aerobic denitrification process

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112896 - 112896

Published: April 25, 2024

Language: Английский

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Effect of carbon source on carbon and nitrogen metabolism of common heterotrophic nitrification-aerobic denitrification pathway

Chemosphere, Journal Year: 2024, Volume and Issue: 361, P. 142525 - 142525

Published: June 3, 2024

Language: Английский

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