CAJ | 학술논문

通过对鼓泡塔式(BC)和内循环气升式(AL)生物流化床反应器水力停留时间分布的研究，发现用组合模型可以描述这两种生物反应器的停留时间分布。AL反应器的完全混合区比BC大2.15%，由于AL强化了流体流动，因而比BC减少了流体走短路的比例。用AL和BC分别处理啤酒废水时，AL比BC的处理效率高。实验结果表明，增加内循环可以强化气-液传质并改善停留时间分布，从而明显地提高废水处理的效率。
통과대고포탑식(BC)화내순배기승식(AL)생물류화상반응기수력정류시간분포적연구，발현용조합모형가이묘술저량충생물반응기적정류시간분포。AL반응기적완전혼합구비BC대2.15%，유우AL강화료류체류동，인이비BC감소료류체주단로적비례。용AL화BC분별처리비주폐수시，AL비BC적처리효솔고。실험결과표명，증가내순배가이강화기-액전질병개선정류시간분포，종이명현지제고폐수처리적효솔。
The resident time distribution(RTD) of bubble column bioreactor(BC) and airlift loop bioreactor(AL) could be described in combinated model according to the studies on the hydraulics of BC and AL. The full mixture volumes in AL were 2.15% larger than in BC and especially rate of short flow in AL was less than in BC, because the fluid was forced to flow by the draught tube. Compared with BC, AL is more efficient in the treatment of brewery wastewater as improvement of RTD. Experimental results indicated that improvement of RTD could promote the transfer of gas-liquid and improve the efficiency of wastewater treatment obviously.