Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China; R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China; Collaborative Innocation Center of Chemical Science and Engineering, Tianjin 300072, China.
Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China; R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China; Collaborative Innocation Center of Chemical Science and Engineering, Tianjin 300072, China.
Bioresour Technol. 2024 Oct;410:131277. doi: 10.1016/j.biortech.2024.131277. Epub 2024 Aug 14.
This study aims to investigate the characteristics of gas-liquid-solid three-phase flow in an Internal Circulation (IC) anaerobic reactor during the treatment of wastewater. Through computational fluid dynamics (CFD) simulations of the gas-liquid-solid three-phase in the first reaction chamber and based on the anaerobic granule swarms drag coefficient model, the study investigates the effects of superficial liquid velocity and superficial gas velocity on granules distribution, uniformity index, gas holdup, flow velocities of each phase, and the dimensionless variance of residence time distribution. In addition, the relationship between the fully mixed superficial velocities of gas and liquid in the first reaction chamber is also determined.
本研究旨在探讨内循环（IC）厌氧反应器在处理废水过程中气-液-固三相流的特性。通过对第一反应室中气-液-固三相的计算流体动力学（CFD）模拟，并基于厌氧颗粒群曳力系数模型，研究了表观液速和表观气速对颗粒分布、均匀性指数、气含率、各相流速以及停留时间分布无因次方差的影响。此外，还确定了第一反应室中气和液的全混表观速度之间的关系。
