光合细菌降解苯酚的动力学参数研究

苯酚是炼焦(油)、塑料、化工等行业生产过程中的主要污染物。随着经济的快速发展,各类含酚废水已经严重威胁着人类的生存环境。利用微生物处理含酚废水是一种经济有效且无二次污染的方法。本文主要研究了光合细菌-沼泽红假单胞菌降解含酚废水的动力学参数。实验结果表明,沼泽红假单胞菌对含酚废水具有很好的降解性能,正常状态下,该菌最大比生长速率μmax为8.00 mg/g.h,半速率常数Ks为247.92 mg/L,产率系数Y为5.88 mg/mg,内源呼吸系数Kd为0.29 d-1。

Study on Kinetic Parameters of Degradating Phenol by Photosynthetic Bacteria

Phenol is the significant raw material or midst substance of coking plant,oil refining,plastic and medicine composing etc.More and more waste water containing phenol without treatment is threatening the environment heavily with the rapid development of economy.The method of microorganism biodegradation is economic and effective to treat with phenol waste water without second pollution.The kinetic parameters of the degradation of the phenol were studied with Rhodopseudomonas palustri.The experimental results show that Rhodopseudomonas palustris had excellent biodegradability for phenol wastewater.Under normal conditions,μmax is 8.00 mg/g·h,Ks is 247.92 mg/L,Y is 5.88 mg/mg and Kd is 0.29 d-1.