桂林电子科技大学学报2024，Vol.44Issue(6)：628-633,6.DOI:10.16725/j.1673-808X.2022123
基于CFD模拟的智能自适应PID控制一体化污水处理系统
Intelligent adaptive PID control integrated sewage treatment system based on CFD simulation
摘要
Abstract
In view of the current problems of high cost and low efficiency of traditional aquaculture wastewater treatment process,in-tegrated sewage treatment equipment has attracted much attention because of its low investment cost,small footprint and good treat-ment effect.An integrated sewage treatment system based on CFD simulation technology using hydrodynamic recycling was de-signed.By optimizing the pond structure and changing the recycling mode of sewage biochemical treatment unit,the use of kinetic energy equipment was reduced.The fuzzy adaptive PID control system was applied to aeration system in order to intelligently con-trol the concentration of dissolved oxygen in each unit and reduce the fluctuation of dissolved oxygen in biological reaction tank.The simulation results show that the velocity distribution of tank body profile is more uniform,and the circulation of fluid is benefi-cial to avoid the formation of dead water zone and reduce sludge deposition,in the case of the opening ratio of anaerobic pool to anoxic pool and anoxic pool to aerobic pool is 4:1.According to the analysis of continuous monitoring data,the integrated equip-ment ran stably,the removal rates of COD,TN and ammonia nitrogen reach 98.66％,96.43％and 98.57％,and the fuzzy adaptive PID control system could save 20％energy consumption after controlling dissolved oxygen.关键词
一体化设备/CFD模拟/溶解氧/PID控制/脱氮Key words
integrated sewage/CFD simulation/dissolved oxygen/PID control/nitrogen removal分类
资源环境引用本文复制引用
许睿,樊德强,李建..基于CFD模拟的智能自适应PID控制一体化污水处理系统[J].桂林电子科技大学学报,2024,44(6):628-633,6.基金项目
广西重点研发计划(桂科AB21196063) （桂科AB21196063）
桂林市重大成果转化项目(20190213-1) （20190213-1）
广西自然科学基金(2021GXNSFAA220056) （2021GXNSFAA220056）
