摘要
通过长期连续运行,文章研究了A2N/BAF中试工艺对低碳氮生活污水的处理效果,结果表明:出水COD、NH4+-N、TP浓度分别为38、8.81、0.41 mg/L,去除率分别为80%、75%、86%。基于工艺运行与莫诺特方程中关于底物去除的动力学模型,建立了工艺中反硝化除磷的动力学模型,包括COD去除动力学模型、厌氧释磷动力学模型,缺氧吸磷动力学模型、好氧吸磷动力学模型以及NO3--N去除动力学模型。并结合不同单元的除磷模型,建立了整个工艺的除磷模型。
In the current study, treatment performance of the pilot-scale A2N/BAF process for wastewater with low carbon to nitrogen ratios was investigated in long-term continuous operation. Results showed that effluent COD, NH4+-N and TP concentrations were 38, 8.81 and 0.41 mg/L, corresponding to removal rates of 80%, 75% and 86%. Based on the continuous operation and thekinetic model of Monod for substrate removal, the kinetic model of denitrifying phosphorus removal of the two sludge process was built, including COD removal, anaerobic phosphorus release, anoxic phosphorus assimilation, aerobic phosphorus assimilation and NO3--N removal. Moreover, phosphorus removal kinetic model of the whole system was established combining the kinetic models of different chambers.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2014年第S1期169-174,共6页
Environmental Science & Technology
基金
深圳市国家科技重大专项地方配套资金项目(ZDPT201109200019A)
关键词
反硝化除磷
双污泥
物料平衡
动力学模型
denitrifying phosphorus removal
two sludge
mass balance
kinetic model
