Autotrophic nitrogen removal by a two-step SBR process applied to mixed agro-digestate

Scaglione, Davide; Ficara, Elena; Corbellini, Viola; Tornotti, Giorgio; Teli, Aronne; Canziani, Roberto; Malpei, Francesca

doi:10.1016/j.biortech.2014.11.019

Cited by 40 publications

(18 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…PWW was collected from a wastewater treatment plant in northern Italy (province of Cremona) receiving effluent from a farm breeding up to 20 000 pigs. The water line of the full‐scale treatment plant consisted of a primary treatment (fine screening and dissolved air floatation), pre‐denitrification/nitrification and secondary settling (more details in Scaglione et al ).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Lab‐scale testing of operation parameters for algae based treatment of piggery wastewater

Marazzi

Bellucci

Fornaroli

et al. 2019

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

BACKGROUND Microalgae–bacteria‐based processes are among the most promising low‐cost technologies to treat livestock wastewaters. The current literature reports the need for pretreatment or dilution of piggery wastewater for adequate microalgal growth. The aim of this study is to optimize the potential of microalgal–bacterial communities to treat undiluted and untreated piggery wastewater by investigating the influence of some operational parameters such as phosphorus and CO2 availability and hydraulic retention time on the nitrogen removal efficiency and biomass productivity. RESULTS The microalgal community (dominated by Chlorella spp.) developed quickly and remained quite stable. The rates of biomass production and NH4‐N removal were 55 ± 30 mg TSS L−1 day−1 and 13 ± 3 mg NH4‐N L−1 day−1 respectively. CO2 adjustment had a positive effect on microalgal growth and NH4‐N removal. CONCLUSION Data confirm the ability of the microalgal–bacterial consortium to grow on undiluted and untreated piggery wastewater under semi‐continuous conditions. Synergy between algae and bacteria seems positive since photosynthesis produces the oxygen needed for ammonia oxidation. © 2019 Society of Chemical Industry

show abstract

Section: Methodsmentioning

confidence: 99%

“…110 ± 50 floatation), pre-denitrification/nitrification and secondary settling (more details in Scaglione et al 16 ).…”

Section: Influentmentioning

confidence: 99%

Lab‐scale testing of operation parameters for algae based treatment of piggery wastewater

Marazzi

Bellucci

Fornaroli

et al. 2019

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…[34] The solid liquid separation is the same as in Case 1 (DENO 2). The solid fraction is stocked for 180 days and the liquid fraction is considered to be stocked, before its treatment, for 8 days.…”

Section: Case 2 -Anammoxmentioning

confidence: 93%

Comparison based on environmental effects of nitrogen management techniques in a manure digestate case study

Paccanelli

Teli

Scaglione

et al. 2015

Environmental Technology

View full text Add to dashboard Cite

Due to climate issues and favourable energy market, biogas is spreading as a manure management technique. Digestate is rich in nutrient and has to be handled in order to respect the 'nitrate directive' that limits nitrogen field application in areas defined as vulnerable. In this study, we compared different nitrogen management scenarios: a non-treatment option, a biological short-cut nitrification, a complete autotrophic process (anammox) and ammonia stripping from membrane filtration concentrate. The environmental effect comparison was obtained with 'Cross media effects analysis' and life cycle assessment (LCA). The results were different in some aspects, especially the impacts on eutrophication. According to cross media, the best process is DENO 2, while LCA shows similar impacts for all techniques and the best solution would be the no-treatment option. The main reason to adopt a digestate treatment technique is the lack of area for a correct disposal. If LCA eutrophication results are multiplied with the hectares necessary for each technology, a result similar to that of cross media is obtained.

show abstract

“…Through this, N2O emission can alleviate up to 14.6% of the nitrogen load (Kampschreur et al 2009b). Conversely, due to the lack of heterotrophic denitrifiers in partial nitrification/Anammox systems, N2O emission through these systems could be negligible (Desloover et al 2012;Scaglione et al 2015). Kampschreur et al (2009a) reported the N2O emission from a single-stage nitritation-Anammox process was 1.2% of the nitrogen load.…”

Section: N2o Emissionmentioning

confidence: 95%

State-of-the-Art Anaerobic Ammonium Oxidation (Anammox) Technology

Ji¹,

Huang²,

Wang³

et al. 2015

Anaerobic Biotechnology

View full text Add to dashboard Cite

The nitrogen (N) cycle, one of the most important biospheres on Earth, consists of complex interactions among various nitrogen compounds. Anaerobic ammonium oxidation (Anammox) is a N-transformation pathway that was discovered in the 1990s. The metabolism of Anammox bacteria relies on the oxidation of ammonium for energy using nitrite as the electron acceptor to form nitrogen gas. Due to its chemolithoautotrophic nature, lack of requirement for aeration and organic carbon (C), as well as the high efficiency of N-compounds' conversion to nitrogen gas, Anammox holds an attractive potential for N-removal from wastewaters, especially for those with a low "carbon/nitrogen (C/N)" ratio. This chapter presents the up-to-date information of Anammox bacteria genera and their versatile metabolic pathways found by a number of advanced molecular techniques, and also gives a brief summary on their potential nitrogen sources of cell synthesis through microbial thermodynamic calculations. Considering its applicability for nitrogen removal from wastewaters (both for highstrength and dilute strength), the effect of solid retention time on the nitrogen removal efficiency and inhibitors on Anammox process are discussed. Moreover, its possible involvement in syntrophy for sulfate reduction and ammonium oxidation triggers scientists to wonder if it plays a significant role in the global nitrogen-sulfur cycle.

show abstract

Autotrophic nitrogen removal by a two-step SBR process applied to mixed agro-digestate

Cited by 40 publications

References 32 publications

Lab‐scale testing of operation parameters for algae based treatment of piggery wastewater

Lab‐scale testing of operation parameters for algae based treatment of piggery wastewater

Comparison based on environmental effects of nitrogen management techniques in a manure digestate case study

State-of-the-Art Anaerobic Ammonium Oxidation (Anammox) Technology

Contact Info

Product

Resources

About