This paper provides a review of the essential equations and parameters that are used to design bioreactor aeration systems. Major objectives were to determine if the log-deficit method (LDM) and non-linear regression method (NLRM) yielded different results for the volumetric oxygen mass transfer coefficient (KL a)T and dissolved oxygen (DO) saturation concentration (Cs)T . Another objective was to compare and evaluate oxygen uptake rates (OURs) from the traditional BOD bottle technique with OURs determined from mass balances around completely-mixed activated sludge (CMAS) reactors. Full- and bench-scale, non-steady state reaeration tests were performed using sodium sulfite and cobalt chloride in addition to operating bench-scale CMAS reactors. Full-and bench-scale reaeration testing indicated there was no significant difference in the estimate of (KL a)T in tap water using the LDM or NLRM. Similarly, (Cs)T values were the same for the LDM and NLRM for 70 out of 119 reaeration tests. Actual oxygen uptake rates (AOURs) measured using the BOD bottle technique versus calculated oxygen uptake rates (COURS) were the same for 26 out of 51 data sets evaluated. The alpha-factor (α) increased as the solids retention time (SRT) was increased.

中文翻译：

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氧气转移参数和氧气吸收率重新。

本文概述了用于设计生物反应器曝气系统的基本方程式和参数。主要目标是确定对数亏缺法（LDM）和非线性回归方法（NLRM）对于体积氧传质系数（KL a）T和溶解氧（DO）饱和浓度（Cs）T是否产生不同的结果。另一个目的是比较和评估传统BOD瓶技术的氧气吸收率（OURs），该OURs是由完全混合的活性污泥（CMAS）反应器周围的质量平衡确定的。除了运行的台式CMAS反应器外，还使用亚硫酸钠和氯化钴进行了全规模和台式规模的非稳态反应测试。全面和台面试验表明，使用LDM或NLRM在自来水中对（KL a）T的估算没有显着差异。同样，在119次再测试中，有70次的LDM和NLRM的（Cs）T值相同。在评估的51个数据集中，有26个使用BOD瓶技术测量的实际吸氧率（AOURs）与计算的吸氧率（COURS）相同。随着固体保留时间（SRT）的增加，α因子（α）也会增加。