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

摘要： 作为一种新型的废水生物处理技术，三相生物流化床反应器近年来备受关注。本文从流体力学性能、气液传质特性、反应器结构设计、生物载体等方面对三相生物流化床的技术特点及研究现状进行了综述，表明该类反应器在内部流体力学特征和传质特征方面较其它生物反应器更为复杂，反应器结构、运行参数及载体的选择对处理效果有较大影响；同时总结了其在含油废水处理中的研究成果和进展；最后指出：用于指导反应器结构设计的数学模型的建立及反应器的工程验证仍是该技术今后研究开发的重点。

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