摘要
利用活性污泥模型2D号(ASM2D)建立曝气生物滤池处理工艺的计算模型,并通过灵敏度分析,对模型的动力学参数进行校正.校正后的模型对出水化学需氧量、氨氮、总氮、硝氮和总磷的模拟值与测量值基本一致.在所建模型的基础上分析甲醇投加量和回流比对出水总氮和硝氮的影响,结果发现表明,当甲醇的投加质量浓度为20 mg.L-1时,可以满足反硝化需求,回流比最佳可控制在110%.
Biological aerated filter（BAF）was one of the mainstream processes of the municipal wastewater treatment.In this paper,the mathematical model of BAF based on activated sludge model 2D（ASM2D） was built,and the dynamic parameters of the model were calibrated by the sensitivity analysis.The simulation results showed that the model values of chemical oxygen demand（COD）,ammonia nitrogen,total nitrogen and total phosphorus were approximately to the experiment values.The effect of methanol dosage and reflux ratio on the nitrate and total nitrogen in effluent were discussed based on the mathematical model.The denitrification process was optimized when the dosing quantity of methanol was 20 mg·L-1,the reflux ratio was 110%.
出处
《华侨大学学报（自然科学版）》
CAS
北大核心
2011年第4期409-413,共5页
Journal of Huaqiao University(Natural Science)
基金
国家"十一五"水体污染控制与治理科技重大专项项目(2008ZX07317-02)
福建省厦门市科技计划项目(3502Z20093028)
关键词
曝气生物滤池
活性污泥模型2D号
污水处理
数学模拟
优化
biological aerated filter
activated sludge model 2D
wastewater treatment
mathematical modeling
optimization
