ABR反应器结构对水力特性的影响 Influence of Structure on Hydrodynamic Characteristics of Anae

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Influence of Structure on Hydrodynamic Characteristics of Anaerobic Baffled Reactor

ABR反应器的结构决定了反应器的流态,从而控制着可能达到的处理效率.为进行反应器结构优化设计,首次研究了ABR的下、上向流室宽度比、折流板底端距底板距离和折流板折角等结构参数与ABR水力特性之间的关系.厌氧折流板反应器ABR的典型结构由一系列相同结构单元串联组成.反应器的水力特性可通过研究单个单元的水力特性推知.采用停留时间分布RTD (residence time distribution)方法研究了反应器各结构参数的变化对一个5.25 L的ABR单元清水水力特性的影响.结果表明:ABR的死区较小,远低于其他厌氧生物反应器;流态接近理想推流式;下、上向流室宽度比不宜过小,最佳值为1∶3;折流板底端距底板距离与死区在本试验所取范围内(1~5 cm)成正比关系;折流板折角以50°左右为佳.

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作 者: 胡细全 刘大银 蔡鹤生  
L6r5{N @ WYK0蔡鹤生(中国地质大学环境学院,湖北武汉,430074) 
刊 名:地球科学-中国地质大学学报  ISTIC EI PKU
年,卷(期):2004 29(3) 
关键词:ABR   结构   水力特性   死区  
机标关键词:厌氧折流板反应器结构参数水力特性time distribution停留时间分布上向流结构优化设计单元串联生物反应器正比关系相同结构流态宽度距离方法研究端距典型结构底板处理效率推流式 
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