21CHY531 ENVIRONMENTAL CHEMISTRY ELECTIVES – CHEMISTRY-
Unit I-
Chemical toxicology: Toxicity -effects, toxic chemicals in the environment, impact of toxic chemicals on enzymes, biochemical effects of As, Cd, Pb, Hg, Co, NOx, SO2 , O3, PAN, CN, pesticides, carcinogenic substances.
Unit II-
Air pollution: Primary pollutants, hydrocarbons-photochemical smog, particulates, radioactivity, effects of atmospheric pollution -acid rain, ozone layer depletion, Indoor air pollution, Effect of electric and magnetic fields in the environment Air pollution accidents – Bhopal and Chernobyl, Air quality standards, Sampling and analysis of pollutants – CO, SO2, H2S, hydrocarbons, SPM, Noise pollution –Measurement, Classification, Hazards.
Unit III-
Water pollution: Pollution of fresh water, ground water and ocean, Thermal pollution, Sampling and measurement of water quality – odour, colour, EC, turbidity, TDS, salinity, COD, BOD, DO, coliform, pH, acidity, CO2, alkalinity, hardness, NO3-, NO2-, NH3, phosphate, fluoride, chloride, cyanide, sulphide, sulphate and metals- As, Cd, Fe, Pb, Hg, SAR, WQI, Water quality parameters and standards, Waste water treatment techniques.
Unit IV-
Effluent and waste management: Effluent – definition and characteristics, Methods for water and waste water treatment and systems (physical, chemical, and biological), Air pollution emission control devises – principle methods, Plants, animals and microorganisms for controlling pollution and treatment of effluents, Waste management – definition, characterisation, sources and classification, Waste treatment and disposing methods, -recycling and reuse, Methods for management for hazardous and toxic wastes, Principle and strategies of green chemistry –Illustrate with examples.
Unit V-
Lithosphere: Composition, reactions in soil, Wastes and pollutants in soil, Sampling procedures and analysis of soil- cation exchange capacity, lime status, lime requirement, gypsum requirement, pH, N, P, K, S, Ca, Mg, Management of solid waste.
TEXTBOOKS:
- A. K. De, Environmental Chemistry, New age International Ltd.
- S. S. Dara, A Textbook of Environmental chemistry and pollution control, S.Chand& Company Ltd.
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