EN3301 Environmental Chemistry Syllabus:
EN3301 Environmental Chemistry Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
To educate the students in the area of water, air and soil chemistry
To explain the theoretical basis and observational methods for study of contaminants and interactions in the environment
UNIT I FUNDAMENTALS
Stoichiometry and mass balance-Chemical equilibria, acid base, solubility product(Ksp) ,heavy metal precipitation, amphoteric hydroxides, CO2 solubility in water and species distribution – Ocean acidification, Chemical kinetics , First order- 12 Principles of green chemistry.
UNIT II AQUATIC CHEMISTRY
Water and wastewater quality parameters- environmental significance and determination; Fate of chemicals in aquatic environment, volatilization, partitioning, hydrolysis, photochemical transformation– Degradation of synthetic chemicals – Metals, complex formation, oxidation and reduction , pE – pH diagrams, redox zones – sorption- Colloids, electrical properties, double layer theory, environmental significance of colloids, coagulation .
UNIT III ATMOSPHERIC CHEMISTRY
Atmospheric structure – chemical and photochemical reactions – photochemical smog. Ozone layer depletion – greenhouse gases and global warming, CO2 capture and sequestration – acid rain- origin and composition of particulates. black carbon, air quality parameters determination.
UNIT IV SOIL CHEMISTRY
Nature and composition of soil – Clays- cation exchange capacity-acid base and ion-exchange reactions in soil – agricultural chemicals in soil-reclamation of contaminated land; salt by leaching- Heavy metals by electrokinetic remediation.
UNIT V EMERGING POLLUTANTS
Heavy metals-chemical speciation –Speciation of Hg & As- endocrine disturbing chemicals Pesticides, Dioxins & Furan, PCBs , PAHs and Fluro compounds toxicity- Nano materials, CNT, titania, composites ,environmental applications.
TOTAL : 45 PERIODS
COURSE OUTCOMES:
On completion of the course, the student is expected to
CO1: Gain competency in solving environmental issues of chemicals based pollution
CO2: Determine chemicals mobility in aquatic systems
CO3: Identify contaminating chemicals in air and their fate
CO4: Understand the type of soil contaminants and provide remediation
CO5: Identify emerging environmental contaminants including speciation
REFERENCES:
1. Sawyer, C.N., Mac Carty, P.L. and Parkin, G.F., “Chemistry for Environmental Engineering and Science”, Tata McGraw – Hill, Fifth edition, New Delhi 2017.
2. Colin Baird„ Environmental Chemistry, Freeman and company, New York, 5th Edition, 2012.
3. Manahan, S.E., “Environmental Chemistry”, Eleventh Edition, CRC press, 2022.
4. Ronald A. Hites,”Elements of Environmental Chemistry”, Wiley, 2nd Edition, 2020.