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高效厌氧反应器中主反应区流场状态分析估算

发表时间:2008-08-31  浏览量:1576  下载量:750
全部作者: 陈协
作者单位: 江西省科学院
摘 要: 厌氧反应器是厌氧技术发展最为迅速的领域之一。厌氧反应器内的生化反应,既深入到物质的微观结构与运动过程,又涉及到大尺度的宏观结构与运动。已知颗粒污泥是提高生物量和传质效率的有效工具。本文采用数量级比较法和类比法近似分析了重力场下颗粒污泥及气液混合流体的物理属性,利用在主反应区三相的流动空间和动力学条件,尤其是颗粒污泥的空间密度、流态及对应流体的传质状况。从物理属性简要分析了散式流态化和聚式流态化功能区域的划分,进行了流场状态参数分析估算,并给出了参数之间的约束条件。
关 键 词: 环境工程学;三相流场状态;颗粒污泥;散式流态化;聚式流态化
Title: The analysis and calculation for the flow field state of the main reaction zone of the highly efficient anaerobic reactor
Author: CHEN Xie
Organization: Jiangxi Academy of Sciences
Abstract: Anaerobic reactor is one of the most fast developing area in anaerobic technology. Biochemical reaction inside the anaerobic reactor both goes deep into the microstructure and the progress of the movement of the material and large-scale macrostructure and movement. Granular sludge is the effective tool to improve biomass and mass transfer efficiency. The article uses the order of magnitude comparison method and method of analogue to analyze the physical attribute of granular sludge and gas-liquid mixing fluid under gravitational field, the triphase flowing space and dynamics conditions in the main reaction zone, especially the granular sludge’s space density, fluid state and the mass transfer state of the corresponding fluid. From the point of their physical attribute, it briefly analyzes the function classification of the particulate fluidization and aggregative fluidization. It also analyzes and calculates the parameters of the flow field state and gives the constraint conditions among the parameters.
Key words: environmental engineering; triphase flow field state; granular sludge; particulate fluidization; aggregative fluidization
发表期数: 2008年12月第16期
引用格式: 陈协. 高效厌氧反应器中主反应区流场状态分析估算[J]. 中国科技论文在线精品论文,2008,1(16):1833-1836.
 
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