Nitrogen removal in piggery waste was investigated with the combined SHARON-ANAMMOX process. The piggery waste was characterized as strong nitrogenous wastewater with very low C/N ratio. For the preceding SHARON reactor, ammonium nitrogen loading and conversion rates were 0.97kg NH4-N/m3reactor/day and 0.73kg NH4-N/m3 reactor/day, respectively. Alkalinity consumption for ammonium conversion was 8.5gr bicarbonate utilized per gram ammonium nitrogen converted to NO2-N or NO3-N at steady-states operation. The successive ANAMMOX reactor was fed with the effluent from SHARON reactor. Nitrogen loading and conversion rates were 1.36kg soluble N/m3 reactor/day and 0.72kg soluble N/m3 reactor/day, respectively. The average NO2-N/NH4-N removal ratio by ANAMMOX reaction was 2.13. It has been observed that Candidatus “Kuenenia stuttgartiensis” were dominated in the ANAMMOX reactor based on FISH analysis.
Nitrogen removal from piggery waste using the combined SHARON and ANAMMOX process
I.S. Hwang, K.S. Min, E. Choi, Z. Yun; Nitrogen removal from piggery waste using the combined SHARON and ANAMMOX process. Water Sci Technol 1 November 2005; 52 (10-11): 487–494. doi: https://doi.org/10.2166/wst.2005.0727
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