EN3025 Environmental System Engineering Syllabus:

EN3025 Environmental System Engineering Syllabus – Anna University Regulation 2021

COURSE OBJECTIVES:

 To introduce about ecological modeling, single and multi-species modeling on a brief.
 To educate about the modeling of CSTR and the kinetics of reaction taking place in it.
 Introduce the concepts of river and stream water modeling, water quality parameters modeling.
 To educate about the microbial energetic in various reactors systems.
 To elaborate the computational techniques for modeling

UNIT I ECOLOGICAL SYSTEM

Basic concepts in ecology and ecological modeling, Population Dynamics: Birth and death processes. Single species growth, Prey-predator models: Lotka-Volterra, RosenzweigMacArther, Kolmogorov models. Multi-species modeling – Structural analysis and stability of complex ecosystems.

UNIT II CONTINUOUS-FLOW REACTOR MODELING

CSTR, Plug-Flow, Dispersion. A case study of a tubular reactor with axial dispersion, Parameter Calibration: Search algorithms for nonlinear dynamical models, Variance of estimated parameters. Application to Monod and Haldane kinetics.

UNIT III WATER QUALITY MODELING

Rivers and streams water quality modeling -dispersion and mixing- water quality modeling process model sensitivity-assessing model performance; Models for dissolved oxygen and pathogens Pollutant and nutrient dynamics -Dissolved Oxygen dynamics -Groundwater quality modeling.

UNIT IV MICROBIAL DYNAMICS AND ENERGETICS

Requirements for carbon and nutrient removal. Activated sludge: Process schemes: completely mixed, plug-flow, SBR, nutrient removal. Anaerobic digestion: process dynamics, Operational control of wastewater treatment processes.

UNIT V COMPUTER BASED SOLUTIONS

Formulation of linear optimization models. Linear programming. Sensitivity testing and duality. Solution techniques and computer programming; Formulation of linear optimization models. Application of models- simulation, parameter estimation and experimental design.

TOTAL: 45 PERIODS
COURSE OUTCOMES:

On completion of the course, the students are able to
CO1 Understand the principle of system modeling
CO2 Conceptualize the principle of reactor design
CO3 Develop water quality models.
CO4 Model microbial dynamics
CO5 Apply the knowledge of soft computing techniques to environmental system modeling

REFERENCES:

1. Deaton, M.L and Winebrake, J.J., “Dynamic Modeling of Environmental Systems”, Springer- Verlag, 2000
2. Orhon, D and Artan, N., “Modeling of Activated Sludge Systems, Technomic” Publ. Co., 1994.
3. Steven C. Chapra, “Surface Water Quality Modelling”, Tata McGraw-Hill Companies,Inc., New Delhi 2018.