CAJ | 학술논문

Pseudomonas delafieldii R-8是一株高效的脱硫菌，是好氧菌。陶瓷膜微泡曝气能产生100μm左右的气泡，理论的利用率能达到100%，并且膜管在曝气的过程中有滤菌作用，可以节约能耗。搅拌釜式反应器在气液之间的混合效果好、相接触面积大以及传质效果好。本文首次使用陶瓷膜微泡曝气技术，研究了硅藻土固定化的R-8细胞在搅拌釜式反应器中的脱硫反应，得到最优的脱硫条件为：温度为30℃，搅拌转速为400 rpm以及通气量为0.04 MPa。等量的细菌量进行生物脱硫，陶瓷膜微泡曝气的初始脱硫速率以及24 h的总脱硫率分别为0.12 mmol/h和91%，而传统的鼓泡曝气的的初始脱硫速率以及24 h的总脱硫率分别为0.07 mmol/h和23%，使用陶瓷膜微泡曝气的初始比脱硫率以及24 h的总脱硫率要远远大于传统鼓泡曝气，因此，陶瓷膜微泡曝气具有明显的优越性。
Pseudomonas delafieldii R-8시일주고효적탈류균，시호양균。도자막미포폭기능산생100μm좌우적기포，이론적이용솔능체도100%，병차막관재폭기적과정중유려균작용，가이절약능모。교반부식반응기재기액지간적혼합효과호、상접촉면적대이급전질효과호。본문수차사용도자막미포폭기기술，연구료규조토고정화적R-8세포재교반부식반응기중적탈류반응，득도최우적탈류조건위：온도위30℃，교반전속위400 rpm이급통기량위0.04 MPa。등량적세균량진행생물탈류，도자막미포폭기적초시탈류속솔이급24 h적총탈류솔분별위0.12 mmol/h화91%，이전통적고포폭기적적초시탈류속솔이급24 h적총탈류솔분별위0.07 mmol/h화23%，사용도자막미포폭기적초시비탈류솔이급24 h적총탈류솔요원원대우전통고포폭기，인차，도자막미포폭기구유명현적우월성。
Pseudomonas delafieldii R-8 is a high effiency desulfurized bacteria, and it is a aerobic bacteria. Ceramic membrane-aeration system could produce bubbles of 100μm, and the oxygen utilization percentage could reach 100%in theory. The membrane could have a function of filter the bacteria, so it can save energy consumption of sterilization. The stirred tank reactor could offer a sufficient mixing and a large area between the liquid phase and the gas phase, and the mass transfer is satisfied. A new 700 mL stirred tank reactor was firstly introduced for the biodesulfurization process combined with the celite immobilized cells and the ceramic membrane aeration. The optimized conditions were that the agitation speed was 400 rpm and the oxygen pressure was 0.04 MPa at 30℃. The initial rate and desulfurization ratio in 24 h in the ceramic membrane-aerated system were 0.12 mmol/h and 91%, and that of traditional bubble-aerated system were 0.07 mmol/h and 23%. The initial rate and desulfurization ratio in 24 h in the ceramic membrane-aerated system were higher than that in traditional bubble-aerated system obviously, thus the ceramic membrane-aerated system showed obvious advantages over the traditional bubble-aerated system.