Several passive biosorption mechanisms of uranium such as complexation,redox,microprecipitation and ion exchange are discussed,and the trend of development is forecasted.

探讨了微生物对铀的被动吸附机理,论述了其表面配合、氧化还原、无机微沉淀及离子交换等过程,并进行了展望。

The role and application of hydrofinishing to lube oil processing were described. Having Compared with clay refining, the trend of development of lube oil hydrorefining technology was given.

论述了加氢补充精制在润滑油加工过程的作用及应用,对加氢补充精制与白土精制进行对比,提出润滑油加氢技术的发展方向.