EN6301 - ENVIRONMENTAL CHEMISTRY (Syllabus) 2013-regulation Anna University

EN6301	ENVIRONMENTAL CHEMISTRY	LPTC

3003

OBJECTIVES:

• The objectives of the course are to study the basics of environmental chemistry, chemical reactions involved in water and electro kinetic properties.

UNIT I	ENVIRONMENTAL CHEMISTRY: INTRODUCTION	9

Oxidation state, redox potential – chemical equilibrium, Le-Chatlier Principle - heterogeneous equilibria - solubility product - common ion effect, - application in water treatment. Chemical kinetics - factors influencing the rate – order and molecularity (examples) – derivation of rate constant for first order reaction - time for half - change - nature of BOD reactions –Enzyme reactions, temperature dependence, catalyst.

UNIT II	CHEMICAL REACTIONS OF WATER	9

Colloids, Classification – solids in liquids - hydrophilic and hydrophobic colloids – electrokinetic properties - chemical coagulation of water - Schulz Hardy rule - mechanism of coagulation electrodialysis - water purification – electro-osmosis - dewatering of sludges – electrophoresis – adsorption, Freundlich and Langmuir isotherms – Applications in pollution control.

UNIT III	ORGANIC COMPOUNDS AND STRUCTURES	9

Functional groups in organic compounds and their structures (Preparation & Properties not required) - carbohydrates - classification – monosaccharides, pentoses (Xylose and arabinose) Hexoses (Glucose, galactose, mannose and fructose) – disaccharides (Sucrose, maltose and lactose) – Polysaccharides (Starch, cellulose and hemicellulose) - Structural formulae - ring structure and hydrolysis reaction only.

UNIT IV	ATMOSPHERIC CHEMISTRY	9

Photochemical reactions in the atmosphere- Degradation of VOCs– Chemical process for the formation of inorganic and organic particulate matter –Photochemical smog.

UNIT V	SOIL CHEMISTRY	9

Soil classification– Inorganic and organic components of soil –physical and chemical properties of soil- Acid -base and ion exchange reactions--Salt affected soil.

TOTAL : 45 PERIODS

OUTCOMES: The students completing the course will have

• an insight into the chemical reactions in water, air and soil environment.
• the ability to apply chemistry principles in analysing pollution of water, air and soil environment.
• an understanding on the fate of chemicals on the environment and suggest relevant interventions.

TEXT BOOKS:

1. Stanley E.Manohar, Environmental Chemistry, Williard Grant, 1975.
2. De.A.K. “Environmental Chemistry ", New Age International Ltd., New Delhi, 1996.

REFERENCES

1. Sawyer, C.N. and McCarty, P.L., and Parkin, G.F. “Chemistry for Environmental Engineers",3rd Edition. Tata McGraw Hill, New Delhi, 2013.
2. Glasstone and Ceuris.D," Elements of Physical Chemistry", 1997.
3. Albaigo J., "Analytical Techniques in Enviromental Chemistry", Pergamon Press, New York, 1980.