CAJ | 학술논문

本文通过室内实验，研究了细菌在黄土上的吸附解吸特征，并探讨了其在黄土上的吸附量对土壤石油降解的影响。结果表明，细菌在黄土上的吸附符合 Langmuir 等温吸附方程，当菌液浓度较低时，吸附量随浓度增加而急剧上升，随着菌液浓度进一步增加，吸附量随浓度的增加渐渐平缓；细菌在黄土上的解吸作用极弱，一旦被吸附后，较难被解吸，解吸量平均仅是吸附量的1%；随着细菌在土壤上吸附量的增加，降解率相应提高。当土中含油量为3.52%，菌液浓度为1.0×108个/ ml，经过30d 后，降解率可达到45%。
본문통과실내실험，연구료세균재황토상적흡부해흡특정，병탐토료기재황토상적흡부량대토양석유강해적영향。결과표명，세균재황토상적흡부부합 Langmuir 등온흡부방정，당균액농도교저시，흡부량수농도증가이급극상승，수착균액농도진일보증가，흡부량수농도적증가점점평완；세균재황토상적해흡작용겁약，일단피흡부후，교난피해흡，해흡량평균부시흡부량적1%；수착세균재토양상흡부량적증가，강해솔상응제고。당토중함유량위3.52%，균액농도위1.0×108개/ ml，경과30d 후，강해솔가체도45%。
Through lab experiments,the bacteria adsorption and desorption features on loess is researched and the effect of adsorption capacity on the degradation of oil is discussed. The results show that the adsorption of bacteria on loess accords with Langmuir isothermal ad-sorption equation,when the concentration of bacteria is lower,adsorption capacity increases intensely with it;when the concentration of bac-teria increases further,the increasing of adsorption capacity gradually goes flat with it. Desorption of bacteria from the loess is very weak, once adsorbed,desorption is more difficult,the average desorption quantity is only 1% of the adsorption capacity. Degradation rate can en-hance with the increasing of adsorbed bacteria,when oil content of the soil is 3. 52% and the concentration of bacteria is 1. 0 × 108 个/ ml, the degradation rate can reach 45% in 30 days.