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本文以填料床光生物制氢技术为背景,采用格子Boltzmann传质模型对有机废水绕流表面附着光合生物膜的固体颗粒的三维流动及其表面生化反应和传输过程进行研究,计算分析了进口流速及光照强度对传质过程及产氢性能的影响。结果表明:进口流速的增加降低了底物降解效率;随着光强增加底物降解效率先增大后减小,并在光强I_0=6000 lx时达到最大。
In this paper, packed bed photobiological hydrogen production technology as the background, using the lattice Boltzmann mass transfer model of organic wastewater flow around the surface of the photosynthetic biofilm solid particles of three-dimensional flow and surface biochemical reactions and transport processes were studied, the calculation of the inlet flow rate And light intensity on the mass transfer process and hydrogen production performance. The results showed that the increase of inlet flow rate reduced the degradation efficiency of substrate; the degradation efficiency of substrate increased firstly and then decreased with the increase of light intensity, and reached the maximum at light intensity I 0 = 6000 lx.