一种用于处理猪场污水的新型生物转盘的CFD模拟

CFD simulation of a new rotating biological contactor used to treat sewage from pig farms

利用计算流体动力学(CFD)技术对一种用于养猪场污水处理的新型生物转盘的流动特性进行数值模拟。数值模拟结果表明;该新型生物转盘能够增大生物膜的分布表面,改进新型生物转盘对污水的净化区域,提高新型生物转盘的利用率,达到更好的污水净化作用;转速为6 r/min时比转速为3 r/min时更有利于气液两相接触。

In this paper,computational fluid dynamics(CFD)technology is used to numerically simulate the flow characteristics of a new rotating biological contactor for sewage treatment in pig farms.The results show that the new rotating biological contactor can increase the distribution surface of the biofilm,improve its sewage purification area,increase its own utilization rateand achieve better sewage purification.The rotating speed of 6rpmis more conducive to the gas-liquid two-phase contact than that of 3 r/min.