【作者】 邓科；

【导师】 顾国维； 陈银广；

【作者基本信息】 同济大学 ， 环境工程， 2006， 硕士

【摘要】 进水组分是模型的输入项,对于ASM系列模型的稳态和动态模拟有着极为重要的意义。基于不同的测试原理,国内外的研究者曾提出过不少模型组分的测试方法,但是大多数测试方法比较复杂,限制其在实际污水厂中推广应用。 为了完善污水处理数学模型输入项的获得,本研究从城市生活污水中的主要有机成分——蛋白质、糖类、脂肪三类物质出发,首先,分别研究它们对水质特性参数的贡献情况,从中找到一些基本规律;然后,对复合组分进行研究,得出一个重要结论,即水样中易生物降解物质S_S含量基本上等于小分子水解物质所引起的COD_B,而慢速生物降解物质X_S则等同于高分子量物质COD_B值;此后,通过理论推导和实验证明,得出关于惰性COD组分相关规律;最后,通过实际污水(包括同济新村生活污水和曲阳污水厂进水)实测值对模型进行拟合,得出一个从糖类、蛋白质、脂肪浓度值估算出水质特性参数的模型。 应用上述模型对同济新村生活污水和上海市曲阳水质净化厂进水进行了详细水质分析。实验结果表明:采用所建立的水质特性参数估算模型对城市生活污水进行模拟,模拟效果较好,相对误差小于20%。 本研究对蛋白质、糖类、脂肪等水中有机成分,按水质特性参数划分方法进行区分无疑是一次有益的尝试,为ASM模型水质特性参数测定提供了一种不同的方法;另一方面,所得到的研究成果将有助于改善现有的组分测定方法,从而,促进ASM数学模型更好的为生产和应用服务。更多还原

【Abstract】 As the input data, influent fractions are of great importance to steady and dynamic modelling with ASM. Based on different principles, researchers at home and abroad have proposed many assessment methods for COD fractions in last decades. However, many methods are relatively complicated and can not be applied to WWTP.This paper studies the major organic ingredients in urban wastewater including protein, carbohydrate and lipid to perfect the input data of wastewater treatment mathematical model. First, this paper tries to find some basic rules from their different influences on water quality characteristic parameter. Second, this paper studies the complex ingredient and draws an important conclusion that the S_S content equal to COD_B brought by hydrolysates with small molecule, and X_S content equal to COD_B brought by matters with macromolecule. Third, by theoretic deduction and experimental testification the rules among the inert ingredients of COD are invetigated. Finally, the developed model is testified by several urban wastewater in different areas including urban wastewater in Tongji Xincun and influent of Quyang WWTP.The model is applied to analyze the influent water quality of Tongji Xincun and Quyang WWTP. The test result indicates that the model can be used to simulate the municipal wastewater and the relative error is less than 20%.It is a beneficial attempt discriminate the organic ingredient including protein, carbohydrate and lipid according to the water quality characteristic parameter division method, which provides one brand-new method to the water quality characteristic parameter determination in ASM model. On the other hand, this investigation will be helpful to improve the existing method, which will make the component determination method more stable, quick, and accurate. It will promote the ASM mathematical model to serve the production and practiced application.更多还原