Kinetic study on nitrogen removal performance in marine anammox bacterial culture
Kinetic study on nitrogen removal performance in marine anammox bacterial culture
复制标题
DOI：
10.1016/j.jbiosc.2013.08.004
复制
发表时间：
2014-03-01
影响因子：
2.8
通讯作者：
Kawagoshi, Yasunori
中科院分区：
文献类型：
--
作者：
Huang, Xiao-Wu;Wei, Qiao-Yan;Kawagoshi, Yasunori
首次对海洋厌氧氨氧化细菌培养过程中的厌氧氨氧化反应动力学进行了研究。并与Monod模型、修正的Stover-Kincannon模型、一级和Grau二级基质去除模型的预测结果进行了比较。计算结果表明，Monod模型、修正的Stover-Kincannon模型和Grau二级模型比一级模型更适合描述反应器的脱氮动力学，其决定系数分别为0.993、0.993和0.991。根据修正的Stover-Kincannon模型，最大底物去除速率(r(M))和饱和速率常数(K-B)分别为7.37gN/L/d和6.41gN/Kincannon/d。根据Monod模型求出饱和浓度(K-S)为0.107 g/L，最大比底物去除速率常数(R-m)为0.952 g N/gMLVSS/d。此外，通过评估实测值与预测值之间的线性相关性，对模型进行了评估。动力学研究和模型评价表明，Monod模型、修正的Stover-Kincannon模型和Grau二阶基质去除模型均可用于描述船用厌氧氨氧化反应器的动力学行为或设计。(C)2013年，日本生物技术学会。版权所有。
Kinetics of anaerobic ammonium oxidation (anammox) reaction in marine anammox bacterial culture was first investigated. The nitrogen removal performance of the reactor was compared with prediction of Monod model, modified Stover-Kincannon model, first-order and the Grau second-order substrate removal models. Based on calculations, Monod model, modified Stover-Kincannon model and the Grau second-order model proved to be more appropriate to describe the nitrogen removal kinetics of the reactor than first-order model with high determination coefficients of 0.993, 0.993 and 0.991, respectively. According to the modified Stover-Kincannon model, the maximal substrate removal rate (r(m)) and saturation rate constant (K-B) were suggested as 7.37 and 6.41 g N/L/d, respectively. In addition, in light of the Monod model, the saturation concentration (K-s) and the maximal specific substrate removal rate constant (R-m) were determined to be 0.107 g/L and 0.952 g N/g MLVSS/d, respectively. Moreover, model evaluation was carried out by assessing the linear correlation between measured and predicted values. Both kinetics study and model evaluation showed that Monod model, modified Stover-Kincannon model and the Grau second-order substrate removal models could be used to describe the kinetic behavior or design of the marine anammox reactor. (C) 2013, The Society for Biotechnology, Japan. All rights reserved.