Environmental Chemistry and Microbiology

IIT Kharagpur, , Prof. Anjali Pal

Updated On 02 Feb, 19


The objective of the course is to provide students with basic concepts from environmental chemistry and microbiology for understanding and solving environmental problems.
Major topics that will be covered in environmental chemistry are: review of basic concepts in chemistry, concept of chemical equilibria, equilibrium constants and activity, reaction kinetics, acid and basis, polyprotic acids and bases, acidity, alkalinity, carbonate system, pH-Ct, buffers, and solubility reactions, nuclear chemistry, nitrogen chemistry and chlorination.
Major topics that will be covered in environmental microbiology are: Introduction, the bacteria, the fungi, the algae, protozoa and other higher forms, viruses, pathogens and disease, microbial growth and enumeration, control of microorganisms, microbial diversity and metabolic pathways for remediating contaminated water, solid and hazardous waste, and soil.


Lecture 6: Lecture 05: Acids,Bases and Salts part-V

4.1 ( 11 )

Lecture Details

Sources of Acidity,
CO2 may come from atmosphere and from biological oxidation of organic matter (particularly in polluted water),Mineral acidity (HCl, H2SO4, HNO3) comes from industrial wastes or due to the oxidation of sulfur or sulfides under bacterial action. Combustion of fossil fuel cause the formation of CO2,
Significance of acidity,
Acid waters are corrosive. In many treatment procedures (such as biological treatments) it is important to maintain the pH in range of 6-9.5.

Course Details

Course layout:

Week 1:Concepts of acids, bases and salts, strengths of acids and bases, buffers, acid-base indicators, choice of indicators
Week 2:Concept of chemical equilibrium, solubility and solubility product, activity, Le Chatelier principle
Week 3:Reaction kinetics, rate and order of a reaction, determination of order
Week 4:Reaction mechanism, rate determining step, catalysts, activation energy
Week 5:Radioactivity and nuclear chemistry
Week 6:Nitrogen chemistry and chlorination
Week 7:Introduction and overview of environmental applications; major groups of microbes: bacteria, fungi, algae, protozoa and virus.
Week 8:Cell chemistry, biology and microscopy
Week 9:Microbial Metabolism
Week 10:Microbial Growth and Control
Week 11:Pathogens and diseases, metabolic diversity-1
Week 12:Metabolic Diversity-2 and Biogeochemical Cycles



0 Ratings
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Excellent course helped me understand topic that i couldn't while attendinfg my college.

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Great course. Thank you very much.