关键词: 三相生物流化床, 流体力学特性, 气液传质过程, 生物载体, 含油废水处理

Abstract: This paper reviewed the research situation and technology features of three-phase biological fluidized bed, including hydrodynamics, gas-liquid mass transfer process, reactor structure and bio-carrier. Analysis show that internal hydrodynamic characteristic and mass transfer characteristic in the reactor are more complicated than those in other bio-reactors, and its treatment efficiency are strongly influenced by reactor structure, operation parameters and the carrier. Studies on this type of reactor in oil wastewater treatment were also summarized in this paper. Future research and development should be focused on constructing mathematical model in the reactor design and making the design available to industries.

Key words: three-phase biological fluidized bed reactor, hydrodynamic characteristic, gas-liquid mass transfer process, bio-carrier, oily wastewater treatment