特别选题

  • 孙培德,宋英琦.基于微生物相互作用机理的完全耦合活性污泥模型研究[J].环境科学学报,2006,26(9):1559-1567

  • 基于微生物相互作用机理的完全耦合活性污泥模型研究
  • Study on full coupled activated sludge model (FCASM) based on coupling interaction mechanism of microorganisms
  • 基金项目:浙江省高校中青年学科带头人培养基金(2001-2006)
  • 作者
  • 单位
  • 孙培德
  • 浙江工商大学环境工程系, 杭州 310035
  • 宋英琦
  • 浙江工商大学环境工程系, 杭州 310035
  • 摘要:根据微生物生长机理,推导出微生物的耦合作用机理并在该机理的基础上改进了ASM3Bio-P模型.假设活性污泥系统中有机物氧化过程、生物硝化过程、生物反硝化过程、生物除磷过程可同时存在,在ASM3Bio-P模型上添加相关的开关函数,推导出完全耦合活性污泥模型(FCASM).基于计算机程序进行数值模拟,并将FCASM模拟结果与实测值以及ASM3Bio-P模型模拟值进行对比.结果表明,完全耦合活性污泥模型对氨氮模拟的稳态出水值为1.90g·m-3,ASM3Bio-P模型模拟的氨氮稳态出水值为0g·m-3,而实测的氨氮稳态出水值为1.50g·m-3,完全耦合活性污泥模型的结果更接近真实值.
  • Abstract:According to the mechanism of microorganism growth, Full Coupled Activated Sludge Model (FCASM) which is modified from ASM3 Bio-P by adding inhibition switching function is introduced. Both steady-state numerical simulation and dependent-time numerical simulation on computer are carried out. The effluent value of NH4+-N simulated by FCASM and ASM3 Bio-P are 1.90 g·m-3 and 0g·m-3 respectively besides the measured effluent value is 1.50 g·m-3. The result shows that FCASM correspond with the actual better than ASM3 Bio-P when they are employed in simulation of the process for NH3-N removal. Such conclusion also can be obtained from the results of dependent-time numerical simulation. There are littler differences between FCASM and ASM3 Bio-P when they are used for simulating the processes of COD and PO43--P removal.

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