Nitrogen removal by simultaneous partial nitrification, anammox and denitrification (SNAD) in a structured-bed reactor treating animal feed processing wastewater: Inhibitory effects and bacterial community

Almeida, Ricardo Gabriel Bandeira de; Santos, Carla Eloísa Diniz dos; Lüders, Taíssa Colucio; Nery, Valéria Del; Leal, Cíntia Dutra; Pereira, Alyne Duarte; Araújo, Juliana Calábria de; Davenport, Russell J.; Barana, Ana Cláudia; Lopes, Deize Dias; Damianovic, Márcia Helena Rissato Zamariolli

doi:10.1016/j.ibiod.2018.06.019

Cited by 36 publications

(8 citation statements)

References 49 publications

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“…The main disadvantages of traditional biological nitrogen removal are the complexity of the process, high energy consumption, and the need to add carbon sources. By comparison, simultaneous nitrification and denitrification (SND) processes are effective treatments with low energy consumption [12][13][14]. In SND, nitrification and denitrification occur concurrently in the same reaction chamber due to the actions of bacteria capable of heterotrophic nitrification and aerobic denitrification [15], which are continually being discovered [16,17].…”

Section: Introductionmentioning

confidence: 99%

Identification and Characterization of Janthinobacterium svalbardensis F19, a Novel Low-C/N-Tolerant Denitrifying Bacterium

Chen

Jin

Cui³

et al. 2019

Applied Sciences

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Herein, we isolated Janthinobacterium svalbardensis F19 from sludge sediment. Strain F19 can simultaneously execute heterotrophic nitrification and aerobic denitrification under aerobic conditions. The organism exhibited efficient nitrogen removal at a C/N ratio of 2:1, with an average removal rate of 0.88 mg/L/h, without nitrite accumulation. At a C/N ratio of 2, an initial pH of 10.0, a culturing temperature of 25 °C, and sodium acetate as the carbon source, the removal efficiencies of ammonium, nitrate, nitrite, and hydroxylamine were 96.44%, 92.32%, 97.46%, and 96.69%, respectively. The maximum removal rates for domestic wastewater treatment for ammonia and total nitrogen were 98.22% and 92.49%, respectively. Gene-specific PCR amplification further confirmed the presence of napA, hao, and nirS genes, which may contribute to the heterotrophic nitrification and aerobic denitrification capacity of strain F19. These results indicate that this bacterium has potential for efficient nitrogen removal at low C/N ratios from domestic wastewater.

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Section: Introductionmentioning

confidence: 99%

Identification and Characterization of Janthinobacterium svalbardensis F19, a Novel Low-C/N-Tolerant Denitrifying Bacterium

Chen

Jin

Cui³

et al. 2019

Applied Sciences

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“…Bench-scale investigations have shown the potential of applying the structured bed reactors subjected to recirculation and intermittent aeration (SBRRIA) to remove organic matter and nitrogen compounds from different wastewaters (Almeida et al, 2018;Barana et al, 2013;Correa et al, 2018;Moura et al, 2012Moura et al, , 2018Santos et al, 2016Santos et al, , 2018Silva et al, 2018;Wosiack et al, 2015). In the structured bed reactor, the biofilm grows adhered to a polyurethane (PU) foam that serves as a support material.…”

Section: Introductionmentioning

confidence: 99%

Pilot-scale study of a structured bed reactor for nitrogen and organic matter removal from sanitary sewage: advances and design challenges

Murata¹,

Silva

Santos

et al. 2021

RSD

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Simultaneous nitrification and denitrification (SND) is a process that can remove both nitrogen and organic matter in a single unit. Several bench-scale studies show that the structured bed reactors (STBR) subjected to recirculation and intermittent aeration have achieved a good performance for SND treating different types of wastewater. Thus, this study took a step forward and evaluated the efficiency and stability of treating domestic sewage in a pilot-scale STBR. COD removal efficiencies higher than 87% were achieved in the whole experimental period. The highest Total-N removal efficiency was approximately 74 ± 7% by adopting a hydraulic retention time (HRT) of 47.2 h and intermittent aeration (2 h aerated and 1 h non-aerated). The setup of the aeration system was an important mechanism to ensure the optimal balance between nitrification and denitrification in a pilot-scale system.

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“…In recent years, alternative treatment methods have been investigated to treat wastewater with high NH + 4 -N concentration (Akgul, Aktan, Yapsakli, & Mertoglu, 2013;Badia, Kim, Nakhla, & Ray, 2019;Li, Huang, Ruan, Ren, & Miao, 2014;Wang et al, 2018;Zhang, Zhou, Han, & Zhang, 2014). Among these methods, the combined processes of complete nitritation (CN) (or partial nitritation) and anaerobic ammonium oxidation (ANAMMOX) have shown excellent nitrogen removal efficiency for ammonia-rich wastewater (Almeida et al, 2018;Li, Zhou, et al, 2014). Generally, nitritation precedes ANAMMOX as a pretreatment step to supply nitrite nitrogen (NO − 2 -N) to ANAMMOX (Wang et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Treatment of anaerobically digested effluent from kitchen waste using combined processes of anaerobic digestion–complete nitritation–ANAMMOX based on reflux dilution

Gao

Su²,

et al. 2019

Water Environment Research

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In this study, an anaerobically digested effluent from kitchen waste with high concentrations of chemical oxygen demand (COD) and ammonia nitrogen was treated using combined processes of anaerobic digestion (AD), complete nitritation (CN), and anaerobic ammonium oxidation (ANAMMOX). The COD and nitrogen removal efficiency of each treatment unit were investigated. The feasibility of using the final treatment effluent to dilute the original wastewater was also discussed. Findings showed that as a pretreatment step, AD resulted in the decline in biodegradability and increase in NH + 4 -N concentration. CN was successfully and stably achieved for 106 days with an average nitritation rate of 95% by maintaining the dissolved oxygen at 2-3 mg/L and hydraulic retention time of 24 hr under 30 ± 1°C. High NH + 4 -N and NO − 2 -N. removal efficiencies of over 88% and 96% were attained in the following ANAMMOX reactor. The reflux of ANAMMOX-treated effluent for the dilution of raw wastewater or an influent of CN and ANAMMOX ensured the stable operation of the combined system. • Practitioner points• Anaerobic digestion effluent of kitchen waste had low COD/NH + 4 − N ratio and poor biodegradability. • Stable and efficient nitritation was realized by controlling DO, HRT and TEMP. • High NH + 4 − N and NO − 2 -N removal efficiency were obtained by ANAMMOX process.• Average nitrogen removal rate of 0.94 kg N/m 3 /day were obtained by ANAMMOX. • Reflux dilution with the effluent guaranteed the system's successful operation.• Key words anaerobic digestion; anaerobically digested effluent from kitchen waste; ANAMMOX; complete nitritation; reflux dilution

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Nitrogen removal by simultaneous partial nitrification, anammox and denitrification (SNAD) in a structured-bed reactor treating animal feed processing wastewater: Inhibitory effects and bacterial community

Cited by 36 publications

References 49 publications

Identification and Characterization of Janthinobacterium svalbardensis F19, a Novel Low-C/N-Tolerant Denitrifying Bacterium

Identification and Characterization of Janthinobacterium svalbardensis F19, a Novel Low-C/N-Tolerant Denitrifying Bacterium

Pilot-scale study of a structured bed reactor for nitrogen and organic matter removal from sanitary sewage: advances and design challenges

Treatment of anaerobically digested effluent from kitchen waste using combined processes of anaerobic digestion–complete nitritation–ANAMMOX based on reflux dilution

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