CAJ | 학술논문

基于后台阶流理论,设计了菱形翼片隔板絮凝反应器,实现了同时对流体微观涡旋强化及宏观涡旋均布进行有效控制.同时结合数值模拟计算结果和中试处理效果,优化了菱形翼片隔板絮凝反应器的特征尺寸参数,并将其用于钢厂废水回用项目.工程运行结果表明,单套设备处理量为750 m~3/h,出水浊度可稳定在1 NTU左右,对COD的去除率达到了48.5%,大大降低了后续处理负荷,由此证明该设备具有较高的絮凝反应效率,出水水质良好,适用于钢厂废水回用工程.
기우후태계류이론,설계료릉형익편격판서응반응기,실현료동시대류체미관와선강화급굉관와선균포진행유효공제.동시결합수치모의계산결과화중시처리효과,우화료릉형익편격판서응반응기적특정척촌삼수,병장기용우강엄폐수회용항목.공정운행결과표명,단투설비처리량위750 m~3/h,출수탁도가은정재1 NTU좌우,대COD적거제솔체도료48.5%,대대강저료후속처리부하,유차증명해설비구유교고적서응반응효솔,출수수질량호,괄용우강엄폐수회용공정.
A flocculation reactor with lozenge fin plates, which can simultaneously control the in-tensification of flow micro-vortex and the equal distribution of flow macro-turbulence, was constructed ac-cording to the backward-facing step flow theory.The geometric parameters of the flocculation reactor were optimized by numerical investigation and a pilot experiment.The optimized reactor was applied in a steel-works wastewater reuse project.The operation results show that when the reactor capacity is 750 m~3/h, the effluent turbidity is about 1 NTU, and the removal rate of COD is 48.5%, which decreases the load of the follow-up treatment.It is proved that the reactor has higher floceulation efficiency and good effluent quality, and it can be used in steelworks wastewater reuse projects.