摘要
为优化竹园第二污水处理厂平流式沉淀池设计方案,针对沉淀池设计,采用最新数值模拟技术建立了三维沉淀池模型。根据沉淀池的工艺条件,对典型工况进行模拟;通过与原始设计结构相似的平流式沉淀池的现场数据来验证模型,保证模拟结果的可信性。通过不同工况的模拟结果,从沉淀池三维流场和颗粒场分布以及出水SS和污泥浓缩性的变化曲线几个方面对原始设计方案进行了评估,预测沉淀池的水力状况、性能和处理能力,为进一步优化提供了基础。
To optimize the design of the horizontal flow sediment tank in No.2 Zhuyuan Sewage Treatment Works, the latest technique of numerical simulation is adopted to establish a 3D model for the design, and based on the process condition of the sediment tank, the typical operation condition is simulated, and, to ensure reliability of the results from simulation, they are verified with the data obtained from the site of a tank structured similar to the original design. With the results from simulation of different operation conditions, the original design is appraised of the 3D flow field and distribution of granular field in the sediment tank, including the outlet SS and curves for variation in sludge concentration, and the hydraulic status of the tank is predicted as the base for further optimization.
出处
《中国市政工程》
2008年第B12期41-44,共4页
China Municipal Engineering
关键词
污水处理厂
计算流体力学
平流式沉淀池
数值模拟
三维流场
评估
sewage treatment works
computational fluid dynamics
horizontal flow sediment tank
numerical simulation
3D flow field
appraisal
