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ARS Home » Southeast Area » Florence, South Carolina » Coastal Plain Soil, Water and Plant Conservation Research » Research » Publications at this Location » Publication #328303

Title: Biological deammonification of livestock effluents after anaerobic digestion using specialized bacterial cultures

Author
item Vanotti, Matias
item KUNZ, AIRTON - EMBRAPA
item MARTINEZ, JOSE - COLLABORATOR
item NISHIYAMA, T - SOJO UNIVERSITY
item FUJUI, TAKAO - SOJO UNIVERSITY

Submitted to: Meeting Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 10/15/2015
Publication Date: 11/15/2015
Citation: Vanotti, M.B., Kunz, A., Martinez, J., Nishiyama, T., Fujui, T. 2015. Biological deammonification of livestock effluents after anaerobic digestion using specialized bacterial cultures. In: Proceedings of the 14th World Congress on Anaerobic Digestion. International Water Association (IWA), November 15-18, 2015, Viña del Mar, Chile, Paper #IWA-3122545.

Interpretive Summary:

Technical Abstract: We investigated a deammonification process for the removal of ammonia from anaerobi digestion (AD) effluents. This process is autotrophic and removes N without carbon. Instant deammonification reaction was obtained by mixing a high performance nitrifying sludge (HPNS) (NRRL B-50298) with anammox sludge Brocadia caroliniensis (NRRL B-50286), in single, aerated reactors containing fluidized plastic carriers. The process was tested at ambient temperature (23±2 degrees celcius) using AD swine effluents. Ammonia was removed at rates of 0.7-1.0 kg nitrogen per cubic meter of reactor per day and efficiencies obtained were 88 to 100 percent. The chemical reaction was consistent with the theory of deammonification. Compared with traditional N removal, the deammonification process reduced 56 to 57 percent of the aeration needs. Microbial reverse transcription analyses indicated that bacteria in the influent had little effect on the bacterial community that was active in the single-tank. Results showed physiologically high activity of ammonia oxidizing bacteria (AOB) and anammox bacteria in the reactor.