Phosphorus is one of the most important nutrients required to support various kinds of biodegradation processes. As this particular nutrient is not included in the activated sludge model no. 1 (ASM1), this study ext...Phosphorus is one of the most important nutrients required to support various kinds of biodegradation processes. As this particular nutrient is not included in the activated sludge model no. 1 (ASM1), this study extended this model in order to determine the fate of phosphorus during the biodegradation processes. When some of the kinetics parameters are modified using observed data from the restoration project of the Xuxi River in Wuxi City, China, from August 25 to 31 in 2009, the extended model shows excellent results. In order to obtain optimum values of coefficients of nitrogen and phosphorus, the mass fraction method was used to ensure that the final results were reasonable and practically relevant. The temporal distribution of the data calculated with the extended ASM1 approximates that of the observed data.展开更多
ASM1模型(Activated Sludge Model No.1)是国际水协在1987年推出的第一个系统的活性污泥数学模型,由于其简单而准确地模拟了除碳、脱氮过程,因而它在污水处理厂中得到广泛应用。本文在ASM1模型的基础上加入除磷过程,建立了DASM1模型(Dev...ASM1模型(Activated Sludge Model No.1)是国际水协在1987年推出的第一个系统的活性污泥数学模型,由于其简单而准确地模拟了除碳、脱氮过程,因而它在污水处理厂中得到广泛应用。本文在ASM1模型的基础上加入除磷过程,建立了DASM1模型(Development of Activated Sludge Model No.1)。利用欧盟科学技术合作组织推出的BSM1模型(Benchmark Simulation Model No.1)验证了它的稳态除碳、脱氮过程;同时,利用国际水协推出的ASM2d模型(Activated Sludge Model No.2d)验证了它的稳态除磷过程。其验证结果表明:DASM1模型能够较准确地模拟污水处理厂的稳态过程。此外,利用北京、西安两个污水处理厂的实际进、出水数据对DASM1模型进行动态验证。其验证结果表明:DASM1模型能够较准确地模拟污水处理厂的动态过程。DASM1模型的稳态平均误差和动态平均误差均在可接受范围之内,因此它能够较准确地模拟污水处理厂的实际运行过程。展开更多
文摘Phosphorus is one of the most important nutrients required to support various kinds of biodegradation processes. As this particular nutrient is not included in the activated sludge model no. 1 (ASM1), this study extended this model in order to determine the fate of phosphorus during the biodegradation processes. When some of the kinetics parameters are modified using observed data from the restoration project of the Xuxi River in Wuxi City, China, from August 25 to 31 in 2009, the extended model shows excellent results. In order to obtain optimum values of coefficients of nitrogen and phosphorus, the mass fraction method was used to ensure that the final results were reasonable and practically relevant. The temporal distribution of the data calculated with the extended ASM1 approximates that of the observed data.
文摘ASM1模型(Activated Sludge Model No.1)是国际水协在1987年推出的第一个系统的活性污泥数学模型,由于其简单而准确地模拟了除碳、脱氮过程,因而它在污水处理厂中得到广泛应用。本文在ASM1模型的基础上加入除磷过程,建立了DASM1模型(Development of Activated Sludge Model No.1)。利用欧盟科学技术合作组织推出的BSM1模型(Benchmark Simulation Model No.1)验证了它的稳态除碳、脱氮过程;同时,利用国际水协推出的ASM2d模型(Activated Sludge Model No.2d)验证了它的稳态除磷过程。其验证结果表明:DASM1模型能够较准确地模拟污水处理厂的稳态过程。此外,利用北京、西安两个污水处理厂的实际进、出水数据对DASM1模型进行动态验证。其验证结果表明:DASM1模型能够较准确地模拟污水处理厂的动态过程。DASM1模型的稳态平均误差和动态平均误差均在可接受范围之内,因此它能够较准确地模拟污水处理厂的实际运行过程。