JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Basic concepts of mole and mass concentration: notations and conventions, Review of mass balance concepts. Diffusive transport: Diffusion and Fick's first law, Calculation of molecular diffusion coefficients in air and water

UNIT - II

The constitutive transport equation: Derivation of general transport equation and special forms ie continuity and NS equations and similarity between equations of mass momentum and heat dispersion laws.

UNIT - III

Theories of mass transport: two film theory, penetration and surface renewal theory, Boundary layer theory. Mass transport correlations Transport in sheared reactors: Fluid shear and turbulence, transport in steady sheared fluids, turbulent sheared fluids, shear rates in mixed reactors

UNIT - IV

Particles and fractals: Introductions, particle size spectra, solid particles and fractal aggregate geometries, measuring and calculating fractal dimensions from particle size distributions.

UNIT - V

Coagulation in natural and engineered systems: Introduction, general coagulation equations, factors affecting the stability of aquasols, coagulation kinetics, fractal coagulation models. Finite difference and Finite volume procedures for solutions of partial differential equations of Mass, Momentum and Energy transport phenomenon

REFERENCES:

• 1. Bruce E. Logan, Environmental Transport Processes, 2nd Ed., Wiley, 2012.
• 2. E.L. Cussler, Diffusion: Mass transfer in fluid systems, 3rd Ed., Cambridge University Press, 2007.
• 3. John S. Gulliver, Introduction to chemical transport in the environment, Cambridge University Press, 2007 R19 M.TECH ENVIRONMENTAL ENGG. M. Tech – I Year – I Sem. (Env. Engg.)