采用SHARON和厌氧氨氧化联合工艺去除猪场废水中的氮。

Nitrogen removal from piggery waste using the combined SHARON and ANAMMOX process.

作者信息

Hwang I S, Min K S, Choi E, Yun Z

机构信息

Department of Engineering, Kyungpook National University, 1370 Sangyek 3(Sam)-dong, Buk-gu, Daegu, 702-701, Korea.

出版信息

Water Sci Technol. 2005;52(10-11):487-94.

PMID:16459825

Abstract

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 0.97 kg NH4-N/m3 reactor/day and 0.73 kg NH4-N/m3 reactor/day, respectively. Alkalinity consumption for ammonium conversion was 8.5 gr 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 1.36 kg soluble N/m3 reactor/day and 0.72 kg 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.

摘要

采用SHARON-厌氧氨氧化联合工艺对猪场废水脱氮进行了研究。猪场废水为典型的高氮低C/N比废水。对于前续的SHARON反应器，氨氮负荷率和转化率分别为0.97 kg NH4-N/m3反应器/天和0.73 kg NH4-N/m3反应器/天。在稳态运行条件下，将铵转化为NO2-N或NO3-N时，每克铵态氮转化所需的碱度消耗为8.5克碳酸氢盐。后续的厌氧氨氧化反应器采用SHARON反应器的出水作为进水。氮负荷率和转化率分别为1.36 kg可溶性N/m3反应器/天和0.72 kg可溶性N/m3反应器/天。厌氧氨氧化反应的平均NO2-N/NH4-N去除率为2.13。基于荧光原位杂交（FISH）分析发现，厌氧氨氧化反应器中以“斯图加特库氏菌（Candidatus "Kuenenia stuttgartiensis"）”为主。