摘要
对一个轮换操作的污水处理厂来说,模拟化学物质必要变化情况的系统性和复杂性可以通过模型研究来确定。这样的模型通常包括两方面不确定性:模型结构的不确定性和模型输入参数的不确定性。为了评估模型结构的影响,与污水处理厂相关联的复杂系统的功能性包含在两个不同的模型里面:一个是用来描述不连续流轮换操作污水处理厂的高级模型和一个将硝化、反硝化、脱磷作用结合在一起的连续流简化模型。研究结果表明,简化模型可以用来描述在一个轮换操作的污水处理厂里物质的去除过程。同时,研究也表明高级模型的出口浓度和平均值的波动相关联。然而,灵敏度分析表明,这些波动以及与它们相关联的不确定性,相比于输入参数不确定性的影响是很小的。
For an alternately operated wastewater treatment plant （WWTP）, the necessary complexities and systematicality for simulating the fate of chemical substances could be determined by modeling research, There are usually two uncertainties： the uncertainties of the model structure and input parameters. To evaluate the influence of the model structure, the complex system functionalities associated with the WWTP are incorporated into two models： an advanced model describing the alternating process and a simple model aggregating the nitrifying, denitrifying and phosphorous removing bioreactors into one. The result showed that a single bioreactor model can be used for describing substance removal in alternately operated WWTPs. Moreover, the outlet concentrations from the advanced model were associated, with fluctuations around the mean values. However, an uncertainty analysis revealed that these fluctuations and the uncertainties related to them were insignificant compared to the influence of the uncertainties related to the input parameters.
出处
《科技信息》
2007年第7期40-42,共3页
Science & Technology Information
关键词
污水处理厂
轮换操作
模型
不确定性
wastewater treatment plant
alternate operataiotn
model
uncertainty
