中文摘要：

为联氨(N2H4)强化全自养脱氮(CANON,completelyautotrophicnitrogenremovalovernitrite)工艺性能研究提供基础数据,本研究将好氧氨氧化过程动力学表达分为两步,于氨(NH4+)氧化生成羟胺(NH2OH)步添加启动函数NH2OH-bSae用于模拟好氧氨氧化启动加速阶段,建立N2H4抑制好氧氨氧化与亚硝酸盐(NO2-)氧化过程动力学模型;采用呼吸测量法进行硝化污泥呼吸批次试验,分别得到NH2OH氧化生成NO2-和NH4+氧化生成NO2-的好氧氨氧化菌(AOB)产率系数[YNH2OH=(0.437±0.129)mgCOD/mgN,YNH4+=(0.324±0.0123)mgCOD/mgN]及亚硝酸盐氧化菌(NOB)产率系数[YNO=(0.222±0.0112)mgCOD/mgN];基于N2H4抑制动力学模型模拟硝化污泥外源性呼吸剖面线首次得到N2H4好氧氧化半饱和常数[KS,N2H4=(7.96±0.811)mgN/L],N2H4抑制好氧氨氧化和亚硝酸盐氧化的动力学常数[KI,HON=(7.88±0.783)mgN/L,KI,NO=(1.223±0.555)mgN/L].

英文摘要：

The kinetic of CANON (completely autotrophic nitrogen removal over nitrite) process strengthened by tracehydrazine (N2H4) was investigated to provide fundamental data for further research and engineering application. Aerobicammonium (NH4+) oxidation was divided into two steps, NH4+ oxidation to hydroxylamine step and hydroxylamineoxidation to nitrite step, and a startup function NH2OH-bSae was added to the former step to describe the kinetic process ofstatup phase. Kinetics models for NH4+ and nitrite (NO2-) oxidation under N2H4inhibition was established and calibratedwith the oxygen uptake rate (OUR) obtained in the respirometric tests. The biomass yield coefficients of AOB for NH2OHoxidation to NO2-(YNH2OH) and NH4+ oxidation to NO2- (YNH4+) are estimated as (0.437±0.129)mgCOD/mgN and(0.324±0.0123)mgCOD/mgN, respectively. The biomass yield coefficient of NOB (YNO) is estimated as(0.222±0.0112)mgCOD/mgN. The half-saturation coefficient for N2H4 oxidation [KS,N2H4=(7.96±0.811)mgN/L], andkinitic inhibitor coefficients for NH4+ and NO2- oxidation by N2H4 [KI,HON =(7.88±0.783)mgN/L,KI,NO=(1.223±0.555)mgN/L, respectively] were first obtained by simulating the exogenous OUR profiles obtained in respirometric testsof nitrifying sludge at first time.