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[Methodological study on calibrating and validating model parameters of MUCT processes at low C/N ratio].
Xiao-Ling Wang1, Jun Yin, Shu-Kuan Li
1Jilin Province Key Laboratory of Water Pollution Control and Resources Reuse, Jilin Architectural and Civil Engineering Institute, Changchun 130021, China. smile_gyb@sina.com
Huan Jing Ke Xue= Huanjing Kexue
|February 3, 2012
Summary
This study developed a mathematical model for wastewater treatment, determining key kinetic and stoichiometric parameters for the MUCT process. The model accurately simulates the transformation of COD, TN, NH4(+)-N, and TP in low C/N ratio wastewater.
Area of Science:
- Environmental Science
- Biotechnology
- Chemical Engineering
Context:
- Wastewater treatment is crucial for environmental protection.
- The Microbial Unbalanced Continuous Tank (MUCT) process is a biological method for treating wastewater.
- Understanding the kinetics and stoichiometry of biological wastewater treatment is essential for process optimization.
Purpose:
- To establish a mathematical model based on ASM2d to describe the transformation of key pollutants (COD, TN, NH4(+)-N, TP) in wastewater.
- To determine specific kinetic and stoichiometric parameters for the MUCT process treating low C/N ratio wastewater by comparing simulation and observed values.
- To validate the established model using typical ASM2d parameters for other kinetic and stoichiometric aspects.
Summary:
- A mathematical model was developed using ASM2d to simulate pollutant transformation in wastewater.
- Key kinetic parameters like q(PHA), K(A), K(pp), Y(PO4(3-)), micro(AUT), and eta(NO3(-)) were determined for the MUCT process.
- The model's simulation results were compared with observed values to establish parameter accuracy.
Impact:
- Provides a validated mathematical model for predicting and optimizing the MUCT process performance.
- Offers crucial kinetic and stoichiometric data for the treatment of low C/N ratio wastewater.
- Contributes to the advancement of biological wastewater treatment technologies and environmental management.
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