Performance and microbial communities of completely autotrophic denitrification in a bioelectrochemically-assisted constructed wetland system for nitrate removal.
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DOI: 10.1016/j.biortech.2016.12.065
Abstract: A bioelectrochemically-assisted constructed wetland (BECW) system was used to treat nitrate-contaminated wastewater without organic carbon source. The denitrification performance and microbial community composition of a BECW in closed-circuit mode (BECW-C) was compared to a BECW… read more here.
Keywords: becw; constructed wetland; autotrophic denitrification; denitrification ... See more keywords
Comparison of biogenic and chemical sulfur as electron donors for autotrophic denitrification in sulfur-fed membrane bioreactor (SMBR).
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DOI: 10.1016/j.biortech.2019.122574
Abstract: Two sulfur-oxidizing membrane bioreactors (SMBRs) performing autotrophic denitrification at different HRTs (6-26 h), one supplemented with biogenic elemental sulfur (S0bio) and the other with chemically-synthesized elemental sulfur (S0chem), were compared in terms of nitrate reduction rates,… read more here.
Keywords: comparison biogenic; smbr; autotrophic denitrification; biogenic chemical ... See more keywords
Autotrophic denitrification in constructed wetlands: Achievements and challenges.
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DOI: 10.1016/j.biortech.2020.123778
Abstract: The use of constructed wetlands for wastewater treatment is rapidly increasing worldwide due to their advantages of low operating and maintenance costs. Denitrification in constructed wetlands is dependent on the presence of organic carbon sources,… read more here.
Keywords: denitrification constructed; nitrate removal; autotrophic denitrification; constructed wetlands ... See more keywords
Multiple electron acceptor-mediated sulfur autotrophic denitrification: Nitrogen source competition, long-term performance and microbial community evolution.
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DOI: 10.1016/j.biortech.2021.124918
Abstract: Sulfur-driven autotrophic denitrification (SDAD) is feasible for the treatment of low-C/N-ratio and sulfur-laden wastewaters. The nitrite accumulated in SDAD will affect the performance and stability of the system but can be a potential electron acceptor.… read more here.
Keywords: acceptor mediated; autotrophic denitrification; electron acceptor; multiple electron ... See more keywords
Electron donors for autotrophic denitrification
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DOI: 10.1016/j.cej.2019.01.069
Abstract: Abstract Autotrophic denitrification (AuDen) is an efficient, convenient and eco-friendly biological process for the treatment of nitrate-contaminated organic-deficient waters. AuDen can be applied as a unique process or complement the conventional denitrification with organics, reducing… read more here.
Keywords: donors autotrophic; electron donors; autotrophic denitrification; denitrification ... See more keywords
Elucidating the stimulatory and inhibitory effects of dissolved sulfide on sulfur-oxidizing bacteria (SOB) driven autotrophic denitrification.
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DOI: 10.1016/j.watres.2018.01.022
Abstract: Autotrophic denitrification has been widely studied for odor mitigation, corrosion control and nitrogen removal in recent years. This paper examines the response of sulfur-oxidizing bacteria (SOB) driven autotrophic denitrification under short-term stress of dissolved sulfide.… read more here.
Keywords: driven autotrophic; autotrophic denitrification; sob driven; denitrification ... See more keywords
Synchronous N and P Removal in Carbon-Coated Nanoscale Zerovalent Iron Autotrophic Denitrification─The Synergy of the Carbon Shell and P Removal.
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DOI: 10.1021/acs.est.2c02376
Abstract: Fe0 is a promising electron donor for autotrophic denitrification in the simultaneous removal of nitrate and phosphorus in low C/N wastewater. However, P removal may inevitably inhibit bio-denitrification. It has not been well recognized and… read more here.
Keywords: iron; autotrophic denitrification; removal; denitrification ... See more keywords
Effect of Nitrite on Autotrophic Denitrification Efficiency by Pseudomonas sp. SZF15
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DOI: 10.1089/ees.2016.0173
Abstract: Abstract The effect of nitrite on autotrophic denitrification was tested using mixed electron donors of Mn(II) and Fe(II) with Pseudomonas sp. SZF15. In batch experiments, nitrate and nitrite were completely depleted without ammonia production (denitrification… read more here.
Keywords: nitrite autotrophic; pseudomonas szf15; autotrophic denitrification; denitrification ... See more keywords
Effect of Pyrite Pretreatment, Particle Size, Dose, and Biomass Concentration on Particulate Pyrite Autotrophic Denitrification of Nitrified Domestic Wastewater
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DOI: 10.1089/ees.2017.0295
Abstract: Abstract Nitrate (NO3−) loads from domestic and industrial wastewater contribute to surface and groundwater pollution and can have detrimental effects on human health and the environment. In this study, a particulate pyrite autotrophic denitrification (PPAD)… read more here.
Keywords: domestic wastewater; pyrite autotrophic; autotrophic denitrification; wastewater ... See more keywords
Sodium Carboxymethyl Cellulose-Modified Zero-Valent Iron Used for Redunction of Nitrate in Autotrophic Denitrification Systems
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DOI: 10.1089/ees.2017.0525
Abstract: Abstract Zero-valent iron (ZVI) has been reported as an effective material for the reduction of nitrate in autotrophic denitrification systems. The aim of this study was to investigate the effect o... read more here.
Keywords: denitrification systems; nitrate autotrophic; autotrophic denitrification; zero valent ... See more keywords
Predicting Accumulation of Intermediate Compounds in Nitrification and Autotrophic Denitrification Processes: A Chemical Approach
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DOI: 10.1155/2019/2051986
Abstract: Nitrification and sulfur-based autotrophic denitrification processes can be used to remove ammonia from wastewater in an economical way. However, under certain operational conditions, these processes accumulate intermediate compounds, such as elemental sulphur, nitrite, and nitrous… read more here.
Keywords: nitrification autotrophic; intermediate compounds; predicting accumulation; autotrophic denitrification ... See more keywords