CAJ | 학술논문

接种稳定运行的UASB厌氧氨氧化反应器污泥至厌氧发酵罐进行批式实验, 研究了进水HCO3-浓度对厌氧氨氧化反应的影响.结果表明,当进水HCO3-质量浓度<0.8 g/L时,发酵罐出水pH迅速大幅度升高,抑制了厌氧氨氧化细菌活性,氮去除速率大幅下降;随着进水HCO3-质量浓度从0.8 g/L增加到1.2 g/L,厌氧氨氧化细菌的活性增加;进一步提高HCO3-浓度,氮去除速率下降,厌氧氨氧化细菌的活性又受到抑制.HCO3-对厌氧氨氧化反应的影响表现为提供充足碳源和调节反应器pH的综合作用.
접충은정운행적UASB염양안양화반응기오니지염양발효관진행비식실험, 연구료진수HCO3-농도대염양안양화반응적영향.결과표명,당진수HCO3-질량농도<0.8 g/L시,발효관출수pH신속대폭도승고,억제료염양안양화세균활성,담거제속솔대폭하강;수착진수HCO3-질량농도종0.8 g/L증가도1.2 g/L,염양안양화세균적활성증가;진일보제고HCO3-농도,담거제속솔하강,염양안양화세균적활성우수도억제.HCO3-대염양안양화반응적영향표현위제공충족탄원화조절반응기pH적종합작용.
Batch experiments on the inoculation of the sludge in UASB ANAMMOX reactor that runs steadily to the fermentation tank have been conducted. The influences of influent HCO3-concentration on ANAMMOX reaction are investigated. The results show that when the mass concentration of influent HCO3-is less than 0.8 g/L,the effluent pH of the fermentation tank rise quickly to a great extent ,inhibiting the bacterial activity of anaerobic ammonia oxi-dation,and making the nitrogen removing rate drop to a great extent. With the increase of the influent HCO3-mass concentration from 0.8 g/L to 1.2 g/L ,the activity of anaerobic ammonia oxidation bacteria increases. When the con-centration of HCO3-is raised further,the nitrogen removing rate decreases,and the activity of anaerobic ammonia oxidation bacteria is inhibited,again. It is concluded that the influences of HCO3-on the ANAMMOX reaction are to supply sufficient carbon source and regulate the reactor pH.