Special role of corn flour as an ideal carbon source for aerobic denitrification with minimized nitrous oxide emission

Zhu, Shuangyue; Zheng, Maosheng; Li, Can; Gui, Mengyao; Chen, Qian; Ni, Jinren

doi:10.1016/j.biortech.2015.03.046

Cited by 24 publications

(20 citation statements)

References 32 publications

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“…NO 3 − ‐N was not detected. This phenomenon was similar to the nitrogen removal process of most nitrification–denitrification bacteria . Moreover, NH 4 + ‐N was completely removed at C/N ratio >10, which was consistent with previous reports .…”

Section: Resultssupporting

confidence: 90%

“…This phenomenon was similar to the nitrogen removal process of most nitrification-denitrification bacteria. 6,12 Moreover, NH 4 + -N was completely removed at C/N ratio >10, which was consistent with previous reports. 10,28,29 Meanwhile, it was obvious that NO 2 − -N was completely removed at C/N ratio >15.…”

Section: Bpf Degradation and Ammonium Removal Performancesupporting

confidence: 92%

“…To date, many HN‐AD bacteria have been isolated and exhibit good performance for nitrogen removal under various conditions, even including low temperature or high salt condition . These HN‐AD bacteria generally remove nitrogen by using readily biodegradable carbon sources such as glucose, sodium acetate, sodium succinate, sodium citrate and corn flour . In fact, refractory aromatic hydrocarbon pollutants and nitrate/ammonia are commonly found in wastewaters .…”

Section: Introductionmentioning

confidence: 99%

“…4 -7 These HN-AD bacteria generally remove nitrogen by using readily biodegradable carbon sources such as glucose, 8 sodium acetate, 7,9 sodium succinate, 4,5,10 sodium citrate 11 and corn flour. 12 In fact, refractory aromatic hydrocarbon pollutants and nitrate/ammonia are commonly found in wastewaters. 13 -17 Accordingly, simultaneous removal of these pollutants under aerobic conditions is no doubt a potential way for wastewater treatment.…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous bisphenol F degradation, heterotrophic nitrification and aerobic denitrification by a bacterial consortium

Lü

Weng

Wei

et al. 2016

J of Chemical Tech & Biotech

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BACKGROUND Traditional aerobic autotrophic nitrification and anoxic heterotrophic denitrification have many limitations. Recently, the simultaneous heterotrophic nitrification–aerobic denitrification (HN‐AD) process has received increasing attention. Thus, the possibility of the simultaneous removal of bisphenols and NH4+‐N via HN‐AD was investigated. RESULTS A bisphenols‐degrading bacterial consortium was enriched and capable of degrading 50 mg L−1 bisphenol A, 300 mg L−1 4,4‐dihydroxybenzophenone, 375 mg L−1 bisphenol F (BPF) and 10 mg L−1 bis(4‐hydroxyphenyl)sulfide under aerobic conditions. Further studies showed that the bacterial consortium could completely degrade 300 mg L−1 BPF and remove NH4+‐N at 35 °C with 150 rpm at the C/N ratio of over 10. Moreover, BPF mineralization and NH4+‐N reduction to N2 were observed. Clone library analysis indicated that Salmonella enterica, Enterobacter,Citrobacter and Pseudomonas could cooperate to degrade BPF and reduce NH4+‐N to N2. Among these species, the isolated Pseudomonas sp. HS‐2 was capable of simultaneous BPF degradation and NH4+‐N removal via HN‐AD. CONCLUSION The experimental results demonstrated that the enriched bacterial consortium and the isolated strain HS‐2 could simultaneously remove BPF and NH4+‐N via HN‐AD, indicating that this is a potential way for the treatment of wastewaters containing these compounds. © 2016 Society of Chemical Industry

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Section: Resultssupporting

confidence: 90%

Section: Bpf Degradation and Ammonium Removal Performancesupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Simultaneous bisphenol F degradation, heterotrophic nitrification and aerobic denitrification by a bacterial consortium

Lü

Weng

Wei

et al. 2016

J of Chemical Tech & Biotech

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“…Toor et al (2015) reported that wastewater with organics yielded more N2O than wastewater without organics. Zhu et al (2015) presented an interesting way to minimize N2O in aerobic denitrification by using the strain Pseudomonas stutzeri PCN-1 with corn flour as a carbon source. Results showed significant N2O reduction (52.07-99.81%) when compared with succinate, glucose, acetate and citrate.…”

Section: Ghg Emissions From Wwtpsmentioning

confidence: 99%

Gaseous Emissions from Wastewater Facilities

Koh¹,

Shaw²

2016

Water Environment Research

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A review of the literature published in 2015 on topics relating to gaseous emissions from wastewater facilities is presented. This review is divided into the following sections: odorant emissions from wastewater treatment plants (WWTPs); greenhouse gas (GHG) emissions from WWTPs; gaseous emissions from wastewater collection systems; physiochemical odor/emissions control methods; biological odor/emissions control methods; odor characterization/monitoring; and odor impacts/ risk assessments.

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Biofloc technology as part of a sustainable aquaculture system: A review on the status and innovations for its expansion

McCusker

Bolton‐Warberg

Davies

et al. 2023

Aquaculture Fish & Fisheries

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Increased food demand, reflecting a rising global human population, attaining 8 billion in 2022, has furthered the intensification of farmed aquatic animal production. Intensification practices can be resource demanding for micro and macronutrients, dedicated feeds, fossil fuels, chemotherapeutics, and water. Water replaces evaporative losses and may be used to dilute nutrient‐rich wastewater. As an alternative to wastewater discharge, biofloc technology (BFT) uses microbes to manage nutrient levels in production systems. A microbial community grown at high densities can assimilate waste metabolites for growth. This is promoted by increasing the carbon–nitrogen (C:N) ratio using a combination of aquafeed fed to the fish and an additional carbohydrate source, for example, starch, molasses, or bran. The microbial biomass offers a continuous and additional food source to the farmed animal, thus reducing the need for finished aquafeeds and lowering the feed conversion ratio. Although the approach relies on multiple interacting species, BFT can be deployed in relatively low technology settings. This review considers the basis of BFT and identifies areas for innovation and expansion. For example, control of light quantity and quality can influence the biofloc and hence the growth of cultured species. Research on biofloc aquaculture is dominated by studies using tilapia and shrimp, but the technology could be applied to other species, particularly species that are tolerant of biofloc conditions and not highly carnivorous. Biofloc may be a useful biosecurity tool for all or part of the life cycle, and meals made from dried biofloc may enhance the production of cultured species. The key benefits of BFT can potentially be seen in reduced water consumption, lower feed requirements, and improved fish health. This review differs from current review papers in proposing the use of a life cycle assessment in conjunction with BFT, which may be a useful tool for describing and communicating the relative benefits of biofloc systems and their wider environmental impact. This study will serve as a useful knowledge base of BFT information for students, researchers, and stakeholders alike, offering a central source of the main aspects around the culturing of biofloc, key parameters, common species used, areas of potential improvement, and a discussion on where the future of BFT may lie.

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Special role of corn flour as an ideal carbon source for aerobic denitrification with minimized nitrous oxide emission

Cited by 24 publications

References 32 publications

Simultaneous bisphenol F degradation, heterotrophic nitrification and aerobic denitrification by a bacterial consortium

Simultaneous bisphenol F degradation, heterotrophic nitrification and aerobic denitrification by a bacterial consortium

Gaseous Emissions from Wastewater Facilities

Biofloc technology as part of a sustainable aquaculture system: A review on the status and innovations for its expansion

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