苯酚生物降解动力学极限浓度的测定

Evaluation of the Kinetic Threshold Concentration of Phenol Biodegradation

从动力学和热力学角度研究表明 ,有机物的生物降解存在极限浓度 ( Smin)。本文以苯酚为目标有机物 ,利用经过驯化的活性污泥 ,通过测定动力学参数 Ks,μmax,qmax,Y等 ,计算了其生物降解动力学极限浓度为 0 .0 2 2 mg/L,并通过间歇试验进行了验证。

Threshold concentrations of biodegradation exist and must be considered in biological process, and these limits may be related to reactio n kinetics and thermodynamics. This paper provided a method to evaluate the kinet ic threshold concentration of phenol biodegradation. The results show that the minimum concentration value is 0.022 mg/L, which is validated with batch exp eriments.