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Chemistry and Industry of Forest Products ›› 2017, Vol. 37 ›› Issue (4): 95-102.doi: 10.3969/j.issn.0253-2417.2017.04.014

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Flow Numerical Simulation and Optimization for Wastewater Advanced Treatment Reactor

PAN Aixiang1,2, SHI Yingqiao2, DING Laibao1,2, ZHANG Hualan1,2, TIAN Qingwen2, FANG Guigan2   

  1. 1. Research Institute of Forestry New Technology, CAF, Beijing 100091, China;
    2. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
  • Received:2016-12-19 Online:2017-08-25 Published:2017-09-02

Abstract: Simulated with Fluent, swirling water distributor could make a fine mixing effect as similar with the flow pattern of paddle agitator. Discrete Phase Model showed the residence time of particle in swirling water distributor is closer to theoretical value, and back flow was less than in cone water distributor. Swirling water distributor could be used as wastewater advanced reatment reactor. Numerical simulation showed that the laminar flow without mixing effect is occured after throughing catalysts layer. The advance treatment reactor was optimized with helical baffle installed up the catalysts, then the velocity vector was divergent and fluid was mixed efficient, the velocity was nearly four times than that before.The pressure drop of optimized reactor was mainly located at the inlet, then at the catalysts, the pressure loss of helical baffle could be ignored.

Key words: advanced treatment reactor, numerical simulation, water distributor

CLC Number: