【摘要】 当主体水溶液为生物膜提供的溶解氧浓度充分大时,生物膜中的溶解氧浓度成为限制微生物生长的唯一因素.在此条件下,以分离式氧微电极为测试工具,对生物膜中的氧分布进行检测,结合稳态条件下生物膜内扩散-反应方程,采用搜索法求解生物膜动力学参数.生物膜动力学参数估值结果为qmax=10mg(O2)/[g(VSS)-h],KO=1.2mg/L.与活性污泥相比,用该方法获得的qmax值较小,kO值较大.更多还原

【Abstract】 When adequate substrate was provided to biofilm, the oxygen concentration in the biofilm became the only limited factor to the biofilm growth. under this condition, a separated oxygen microelectrode was used as detecting tool to detect the oxygen distribution in the biofilm. Based on the diffusion-reaction equation under the stabilizating condition, biofilm kinetic parameters were calculated by the method of hunting step by step. The results of the biofilm kinetic parameters calculated were qmax=10mg O2/(gVSS-h), KO=1.2mg/L. Compared with the activated sladge system, the qmax was smaller and the kO was higher.更多还原